{ "count": 169, "next": "https://svs.gsfc.nasa.gov/api/search/?keywords=Gamma+Ray&limit=100&offset=100", "previous": null, "results": [ { "id": 14991, "url": "https://svs.gsfc.nasa.gov/14991/", "result_type": "Produced Video", "release_date": "2026-03-20T12:00:00-04:00", "title": "Argonne Assembles, Tests Early ComPair-2 Hardware", "description": "Tim Cundiff, an engineering specialist at Argonne National Laboratory in Lemont, Illinois, monitors the automated wire bond of a ComPair-2 detector layer in April 2025. Image courtesy of Argonne National LaboratoryAlt text: A man in a lab uses a microscope.Image description: A man in a white clean suit, gloves, safety glasses, and a hairnet sits in front of a piece of machinery in a laboratory and peers into a microscope. Behind him is a long bench covered in scientific equipment and computers. In front of him, inside the machinery, are what look like two black treads that loop in and out of frame. || 34340D_0388_PSE_NASA_Goddard_Gamma-Ray_Tracker_Assembly_Process_WEB_16x9.jpg (2000x1125) [1.1 MB] || 34340D_0388_PSE_NASA_Goddard_Gamma-Ray_Tracker_Assembly_Process_WEB_16x9_searchweb.png (320x180) [124.6 KB] || 34340D_0388_PSE_NASA_Goddard_Gamma-Ray_Tracker_Assembly_Process_WEB_16x9_thm.png (80x40) [27.3 KB] || ", "hits": 66 }, { "id": 14980, "url": "https://svs.gsfc.nasa.gov/14980/", "result_type": "Produced Video", "release_date": "2026-02-26T12:00:00-05:00", "title": "Prototype ComPair-2 Gamma-Ray Detectors Complete Thermal Vacuum Testing", "description": "Prototype gamma-ray detectors for the ComPair-2 mission rests in a thermal vacuum chamber after testing in June 2025 at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. The ComPair-2 team tested the detectors’ performance at hot and cold temperatures over the course of a week and the overall survivability of the layer itself. Credit: NASA/Sophia RobertsAlt text: A piece of equipment sits inside a chamber in a lab. Image description: A cylindrical metal chamber at the center of the image has its door swung all the way open. Inside are silver-wrapped ComPair-2 detectors attached to many copper-colored wires. The chamber is in a lab with white walls and has tubes, wires, and other pieces of equipment attached. || ComPair2_TVAC-1-small.jpg (4096x2732) [3.2 MB] || ComPair2_TVAC-1.jpg (8192x5464) [30.6 MB] || ", "hits": 103 }, { "id": 14976, "url": "https://svs.gsfc.nasa.gov/14976/", "result_type": "Produced Video", "release_date": "2026-02-20T00:00:00-05:00", "title": "Fermi's 15-year View of the Gamma-Ray Sky", "description": "This image shows the entire sky as seen by Fermi's Large Area Telescope. Lighter colors indicate brighter gamma-ray sources. The map is centered on the center of our galaxy. The most prominent feature is the bright, diffuse glow running along the middle of the map, which marks the central plane of our Milky Way galaxy. The gamma rays there are mostly produced when energetic particles accelerated in the shock waves of supernova remnants collide with gas atoms and even light between the stars. Many of the star-like features above and below the Milky Way plane are distant galaxies powered by supermassive black holes. Many of the bright sources along the plane are pulsars. The image was constructed from 15 years of observations using front-converting gamma rays with energies greater than 1 GeV. Hammer projection with black background.Credit: NASA/DOE/Fermi LAT CollaborationAlt text: Fermi 15-year all-sky gamma-ray mapImage description: A colorful oval map sits in the middle of a black background. The oval is predominantly royal blue, striped with an irregular bright red, orange, and yellow band horizontally across the center, which shows the plane of our Milky Way galaxy. Smaller dots and splotches in red, orange, yellow, and white appear throughout the oval. || intens_ait_180m_gt1000_psf3_gal_0p1.png (3600x1800) [2.9 MB] || intens_ait_180m_gt1000_psf3_gal_0p1_print.jpg (1024x512) [290.2 KB] || intens_ait_180m_gt1000_psf3_gal_0p1_searchweb.png (320x180) [74.2 KB] || intens_ait_180m_gt1000_psf3_gal_0p1_thm.png (80x40) [4.6 KB] || ", "hits": 204 }, { "id": 14930, "url": "https://svs.gsfc.nasa.gov/14930/", "result_type": "Infographic", "release_date": "2025-12-18T10:00:00-05:00", "title": "NASA’s Fermi Spots Young Star Cluster Blowing Gamma-Ray Bubbles", "description": "Artist's concepts and images of Westerlund 1 and its budding gamma-ray-emitting outflow. Includes a multiwavelength reel", "hits": 211 }, { "id": 14916, "url": "https://svs.gsfc.nasa.gov/14916/", "result_type": "Produced Video", "release_date": "2025-12-08T09:30:00-05:00", "title": "Black Hole Eats Star: The Longest GRB Ever Seen", "description": "Unusually long gamma-ray bursts require more exotic origins than typical GRBs. This animation illustrates one proposed explanation for GRB 250702B — the merger of a stellar-mass black hole with its stellar companion. As the black hole makes its last few orbits, it pulls large amounts of gas from the star. At some point in this process, the system begins to shine brightly in X-rays. Then, as the black hole enters the main body of the star, it rapidly consumes stellar matter, blasting gamma-ray jets (magenta) outward and causing the star to explode. Credit: NASA/LSU/Brian MonroeWatch this video on the NASA.gov Video YouTube channel. || Longest_GRB_Animation_Still.jpg (1920x1080) [296.0 KB] || Longest_GRB_Animation_Still_searchweb.png (320x180) [63.7 KB] || Longest_GRB_Animation_Still_thm.png (80x40) [5.5 KB] || NASA_GRB_Sequence_Final_v01.mp4 (1920x1080) [134.3 MB] || Longest_GRB_Animation_Captions.en_US.srt [1.2 KB] || Longest_GRB_Animation_Captions.en_US.vtt [1.2 KB] || NASA_GRB_Sequence_Final_v01.mov (1920x1080) [1.2 GB] || ", "hits": 598 }, { "id": 14800, "url": "https://svs.gsfc.nasa.gov/14800/", "result_type": "Produced Video", "release_date": "2025-05-27T20:56:00-04:00", "title": "Astrophysics Holiday Vertical Video", "description": "This page contains vertically-formatted Astrophysics videos related to holidays or fun projects.", "hits": 80 }, { "id": 14819, "url": "https://svs.gsfc.nasa.gov/14819/", "result_type": "Produced Video", "release_date": "2025-05-06T10:45:00-04:00", "title": "NASA's NICER Studies Recurring Cosmic Crashes", "description": "Watch how astronomers used data from NASA’s NICER (Neutron star Interior Composition Explorer) to study a mysterious cosmic phenomenon called a quasi-periodic eruption, or QPE.Credit: NASA’s Goddard Space Flight CenterMusic: \"Superluminal\" by Lee Groves [PRS] and Peter Geogre Marett [PRS], Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || YTframe_thumbnail_NICER_QPE.jpg (1280x720) [225.7 KB] || YTframe_thumbnail_NICER_QPE_searchweb.png (320x180) [95.5 KB] || YTframe_thumbnail_NICER_QPE_thm.png [8.7 KB] || 14819_NICER_QPE_Good.mp4 (1920x1080) [70.6 MB] || 14819_NICER_QPE_Best.mp4 (1920x1080) [172.3 MB] || 14819_NICER_QPE_Captions.en_US.srt [2.8 KB] || 14819_NICER_QPE_Captions.en_US.vtt [2.7 KB] || 14819_NICER_QPE_ProRes_1920x1080_2997.mov (1920x1080) [1.6 GB] || ", "hits": 85 }, { "id": 14809, "url": "https://svs.gsfc.nasa.gov/14809/", "result_type": "Produced Video", "release_date": "2025-03-24T00:00:00-04:00", "title": "Testing AstroPix, A New Gamma-Ray Detector", "description": "An AstroPix detector board rests inside a protective tray in a lab at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. The squares in the center are silicon pixel gamma-ray sensors. There are two more under the rectangular copper bus bar, which carries data from the sensors to rest of the A-STEP system. The detector connects to a high-power voltage board and other electronics. Credit: NASA/Sophia RobertsAlt text: Electronic components rest on a lab tableImage description: What looks like a large computer chip — an AstroPix detector — rests inside a white tray on a blue lab bench. The detector is green and has two reflective squares in the middle with a long copper rectangle at right parallel to them. Black wires attached to the bottom of the chip connect it to other pieces of equipment and circuit boards on the lab bench. || ASTEP_Chips3.jpg (8192x5464) [32.7 MB] || ASTEP_Chips3_half.jpg (4096x2732) [3.1 MB] || ASTEP_Chips3_half_searchweb.png (320x180) [109.8 KB] || ASTEP_Chips3_half_thm.png [11.5 KB] || ", "hits": 39 }, { "id": 14738, "url": "https://svs.gsfc.nasa.gov/14738/", "result_type": "Produced Video", "release_date": "2024-12-20T10:00:00-05:00", "title": "What Are Gamma-ray Bursts?", "description": "Watch to learn more about gamma-ray bursts, the most powerful explosions in the cosmos. They first came to the attention of astronomers in the 1970s when new satellites detected this surprising phenomenon. Over decades, scientists have found that these blasts could be detected somewhere in the sky almost every day, and that they were both extremely distant — the closest known is over 100 million light-years away — and enormously powerful. Gamma-ray bursts are now linked to the explosive deaths of massive stars and to mergers of compact objects, like neutron stars and black holes, but many puzzles remain. Credit: NASA’s Goddard Space Flight CenterMusic: “Time Science,” Steve Fawcett [ASCAP] and Katherine F Martin [BMI], Universal Production Music Watch this video on the NASA Goddard YouTube channel.Complete transcript available. || YTframe_ASD_GRB.jpg (1280x720) [221.2 KB] || YTframe_ASD_GRB_searchweb.png (320x180) [81.7 KB] || YTframe_ASD_GRB_thm.png (80x40) [9.6 KB] || 14738_GRBexplainer_Small.mp4 (1920x1080) [117.7 MB] || 14738_GRBexplainer_Best.mp4 (1920x1080) [526.7 MB] || 14738GRBexplainerCaptions.en_US.srt [4.4 KB] || 14738GRBexplainerCaptions.en_US.vtt [4.2 KB] || 14738_GRBexplainer_ProRes_1920x1080_2997.mov (1920x1080) [2.9 GB] || ", "hits": 489 }, { "id": 14705, "url": "https://svs.gsfc.nasa.gov/14705/", "result_type": "Produced Video", "release_date": "2024-10-21T14:00:00-04:00", "title": "A-STEP’s AstroPix Detectors Get Ready for Flight", "description": "Scientists and engineers at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, have been preparing a new gamma-ray detector called AstroPix for an upcoming rocket payload called A-STEP (AstroPix Sounding Rocket Technology dEmonstration Payload).Each detector contains four silicon sensors, and each sensor incorporates 1,225 pixels. A-STEP will carry a three-detector stack to the edge of space on the SubTEC-10 sounding rocket, which will launch in 2025 from NASA’s Wallops Flight Facility in Virginia. The flight’s primary goal is to successfully operate the detectors, with a secondary goal of measuring the rate of impacts from cosmic rays, high-energy particles from space. || ", "hits": 87 }, { "id": 14522, "url": "https://svs.gsfc.nasa.gov/14522/", "result_type": "Produced Video", "release_date": "2024-04-16T12:00:00-04:00", "title": "Fermi Sees No Gamma Rays from Nearby Supernova", "description": "Even when it doesn’t detect gamma rays, NASA’s Fermi Gamma-ray Space Telescope helps astronomers learn more about the universe.Credit: NASA’s Goddard Space Flight CenterMusic: \"Trial\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Fermi_Missing_GR_Still.jpg (1920x1080) [757.8 KB] || Fermi_Missing_GR_Still_searchweb.png (320x180) [86.6 KB] || Fermi_Missing_GR_Still_thm.png (80x40) [6.5 KB] || 14522_Fermi_Missing_GammaRays_Captions.en_US.srt [3.4 KB] || 14522_Fermi_Missing_GammaRays_Captions.en_US.vtt [3.2 KB] || 14522_Fermi_Missing_GammaRays_ProRes_1920x1080_2997.mov (1920x1080) [2.0 GB] || 14522_Fermi_Missing_GammaRays_Good.mp4 (1920x1080) [110.3 MB] || 14522_Fermi_Missing_GammaRays_Best.mp4 (1920x1080) [382.1 MB] || ", "hits": 102 }, { "id": 14399, "url": "https://svs.gsfc.nasa.gov/14399/", "result_type": "Produced Video", "release_date": "2023-12-20T11:00:00-05:00", "title": "Fermi's 14-Year Time-Lapse of the Gamma-Ray Sky", "description": "From solar flares to black hole jets: NASA’s Fermi Gamma-ray Space Telescope has produced a unique time-lapse tour of the dynamic high-energy sky. Fermi Deputy Project Scientist Judy Racusin narrates this movie, which compresses 14 years of gamma-ray observations into 6 minutes. Credit: NASA’s Goddard Space Flight Center and NASA/DOE/LAT CollaborationMusic: \"Expanding Shell\" written and produced by Lars Leonhard.Watch this video on the NASA Goddard YouTube channel.Complete transcript available.Video descriptive text available. || Fermi_14Year_Narrated_Still_print.jpg (1024x576) [157.6 KB] || Fermi_14Year_Narrated_Still.jpg (3840x2160) [891.9 KB] || Fermi_14Year_Narrated_Still_searchweb.png (320x180) [39.2 KB] || Fermi_14Year_Narrated_Still_thm.png (80x40) [4.2 KB] || 14399_Fermi_14Year_Narrated_sub100.mp4 (1920x1080) [90.5 MB] || 14399_Fermi_14Year_Narrated_1080.webm (1920x1080) [49.4 MB] || 14399_Fermi_14Year_Narrated_1080.mp4 (1920x1080) [908.7 MB] || Fermi_14Year_Narrated_SRT_Captions.en_US.srt [8.4 KB] || Fermi_14Year_Narrated_SRT_Captions.en_US.vtt [8.0 KB] || 14399_Fermi_14Year_Narrated_4k.mp4 (3840x2160) [2.2 GB] || 14399_Fermi_14Year_Narrated_ProRes_3840x2160_2997.mov (3840x2160) [19.4 GB] || ", "hits": 112 }, { "id": 14487, "url": "https://svs.gsfc.nasa.gov/14487/", "result_type": "Produced Video", "release_date": "2023-12-18T13:00:00-05:00", "title": "BurstCube Completes Magnetic Calibration", "description": "BurstCube is a mission developed at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. It is expected to launch in March 2024. This CubeSat will detect short gamma-ray bursts, brief flashes of the highest-energy form of light. Dense stellar remnants called neutron stars create these bursts when they collide with other neutron stars or black holes. Short gamma-ray bursts, which last less than 2 seconds, are important sources for gravitational wave discoveries and multimessenger astronomy. BurstCube will use Earth’s magnetic field to orientate itself as it scans the sky. To do so, the mission team had to map the spacecraft’s own magnetic field using a special facility at NASA’s Wallops Flight Facility in Virginia. The magnetic calibration chamber generates a known magnetic field that cancels out Earth’s. The team's measurements of BurstCube’s field in the chamber will help figure out where the satellite is pointing once in space, so scientists can locate gamma-ray bursts and tell other observatories where to look. || ", "hits": 46 }, { "id": 5157, "url": "https://svs.gsfc.nasa.gov/5157/", "result_type": "Visualization", "release_date": "2023-11-28T09:20:00-05:00", "title": "Fermi Catalog of Gamma-ray Pulsars", "description": "A visualization of the 294 pulsars in the Fermi gamma-ray pulsar catalog. The visualization starts with a full-sky Hammer projection view of the catalog. Different types of pulsars are indicated by different markers. The pulsar markers oscillate in size according to the object's pulsation frequency at actual speed. Millisecond pulsars are just shown as solid markers. The map then morphs into the full 3D view of the pulsar distribution, and we then fly out to give a top down view showing the distribution of gamma-ray pulsars in our galaxy. || pulsar3DMap_2160p30.00200_print.jpg (1024x576) [174.0 KB] || pulsar3DMap_2160p30.00200_searchweb.png (320x180) [72.3 KB] || pulsar3DMap_2160p30.00200_thm.png (80x40) [5.4 KB] || full (3840x2160) [0 Item(s)] || pulsar3DMap_2160p30.mp4 (3840x2160) [240.8 MB] || ", "hits": 149 }, { "id": 14373, "url": "https://svs.gsfc.nasa.gov/14373/", "result_type": "Infographic", "release_date": "2023-08-08T10:00:00-04:00", "title": "ComPair Infographic", "description": "Explore this infographic to learn more about ComPair and scientific ballooning.Credit: NASA’s Goddard Space Flight CenterMachine-readable PDF copy || ComPair_Infographic_Final.jpg (5100x6600) [3.3 MB] || ComPair_Infographic_Final.png (5100x6600) [11.7 MB] || ComPair_Infographic_Final-half.jpg (2550x3300) [1.3 MB] || ComPair_Infographic_Final-half.png (2550x3300) [3.8 MB] || ", "hits": 42 }, { "id": 14372, "url": "https://svs.gsfc.nasa.gov/14372/", "result_type": "B-Roll", "release_date": "2023-07-20T10:00:00-04:00", "title": "ComPair Thermal Vacuum Photos", "description": "Team members work on the ComPair balloon instrument before it begins testing in a thermal vacuum chamber at NASA’s Goddard Space Flight Center in Greenbelt, Maryland. ComPair project manager Regina Caputo (front right), graduate student Nicholas Kirschner (George Washington University, left), and research scientist Nicholas Cannady (University of Maryland Baltimore County, rear) examine ComPair's various components to determine what needs to be “harnessed,” or connected via cable to power systems and the onboard computer.Credit: NASA/Scott Wiessinger || ComPair_TVac_IMG_2141.png (5319x3546) [30.9 MB] || ComPair_TVac_IMG_2141.jpg (5319x3546) [6.0 MB] || ComPair_TVac_IMG_2141_half.jpg (2659x1773) [1.4 MB] || ", "hits": 43 }, { "id": 14354, "url": "https://svs.gsfc.nasa.gov/14354/", "result_type": "B-Roll", "release_date": "2023-05-25T00:00:00-04:00", "title": "ComPair Gamma-Ray Balloon Mission", "description": "Carolyn Kierans, principal investigator for the ComPair balloon mission at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, works on the instrument in this video. First, she assembles a layer of the tracker, which is housed in an aluminum casing. Next, she shows one of the tracker’s silicon detectors. Then she takes the lid off the tracker.Credit: NASA/Sophia Roberts || Unassembled_Parts_of_ComPair.01740_print.jpg (1024x540) [148.3 KB] || Unassembled_Parts_of_ComPair.01740_searchweb.png (320x180) [94.0 KB] || Unassembled_Parts_of_ComPair.01740_thm.png (80x40) [7.0 KB] || Unassembled_Parts_of_ComPair.webm (4096x2160) [18.2 MB] || Unassembled_Parts_of_ComPair.mp4 (4096x2160) [570.8 MB] || ", "hits": 30 }, { "id": 14317, "url": "https://svs.gsfc.nasa.gov/14317/", "result_type": "Produced Video", "release_date": "2023-03-28T13:50:00-04:00", "title": "NASA Missions Probe What May Be a 1-In-10,000-Year Gamma-ray Burst", "description": "The Hubble Space Telescope’s Wide Field Camera 3 revealed the infrared afterglow (circled) of the BOAT GRB and its host galaxy, seen nearly edge-on as a sliver of light extending to the burst's upper left. This animation flips between images taken on Nov. 8 and Dec. 4, 2022, one and two months after the eruption. Given its brightness, the burst’s afterglow may remain detectable by telescopes for several years. Each picture combines three near-infrared images taken at wavelengths from 1 to 1.5 microns and is 34 arcseconds across. Credit: NASA, ESA, CSA, STScI, A. Levan (Radboud University); Image Processing: Gladys Kober || GRB_WFC3IR1108+1204_circled.gif (512x512) [3.5 MB] || ", "hits": 191 }, { "id": 14309, "url": "https://svs.gsfc.nasa.gov/14309/", "result_type": "Produced Video", "release_date": "2023-03-15T11:00:00-04:00", "title": "Fermi Captures Dynamic Gamma-ray Sky", "description": "Watch a cosmic gamma-ray fireworks show in this animation using just a year of data from the Large Area Telescope (LAT) aboard NASA’s Fermi Gamma-ray Space Telescope. Each object’s magenta circle grows as it brightens and shrinks as it dims. The yellow circle represents the Sun following its apparent annual path across the sky. The animation shows a subset of the LAT gamma-ray records now available for more than 1,500 objects in a new, continually updated repository. Over 90% of these sources are a type of galaxy called a blazar, powered by the activity of a supermassive black hole.Credit: NASA’s Marshall Space Flight Center/Daniel Kocevski || Fermi_LAT_LCR_Feb2022-Feb2023_Dark_ProRes_3840x2160.mov (3840x2160) [170.3 MB] || Fermi_LAT_LCR_Feb2022-Feb2023_Dark_1600.gif (1600x900) [6.5 MB] || Fermi_LAT_LCR_Feb2022-Feb2023_Dark_1050.gif (1050x590) [3.2 MB] || Fermi_LAT_LCR_Feb2022-Feb2023_Dark.gif (800x450) [2.1 MB] || Fermi_LAT_LCR_Feb2022-Feb2023_Dark_4k.mp4 (3840x2160) [12.1 MB] || Fermi_LAT_LCR_Feb2022-Feb2023_Dark_4k.webm (3840x2160) [1.9 MB] || ", "hits": 78 }, { "id": 14281, "url": "https://svs.gsfc.nasa.gov/14281/", "result_type": "Produced Video", "release_date": "2023-01-26T11:00:00-05:00", "title": "Fermi Spots Gamma-ray Eclipsing 'Spider Systems'", "description": "An orbiting star begins to eclipse its partner, a rapidly rotating, superdense stellar remnant called a pulsar, in this illustration. The pulsar emits multiwavelength beams of light that rotate in and out of view and produces outflows that heat the star’s facing side, blowing away material and eroding its partner.Credit: NASA/Sonoma State University, Aurore Simonnet || GamRayEclipseG22.jpg (1800x1200) [1.1 MB] || GamRayEclipseG22_searchweb.png (320x180) [70.2 KB] || GamRayEclipseG22_thm.png (80x40) [6.8 KB] || ", "hits": 91 }, { "id": 14227, "url": "https://svs.gsfc.nasa.gov/14227/", "result_type": "Produced Video", "release_date": "2022-10-13T15:30:00-04:00", "title": "NASA Missions Detect Record-Breaking Burst", "description": "Swift’s X-Ray Telescope captured the afterglow of GRB 221009A about an hour after it was first detected. The bright rings form as a result of X-rays scattered by otherwise unobservable dust layers within our galaxy that lie in the direction of the burst. The dark vertical line is an artifact of the imaging system.Credit: NASA/Swift/A. Beardmore (University of Leicester) || XRT_image_crop.jpg (1084x1080) [629.3 KB] || XRT_image_crop_print.jpg (1024x1020) [657.0 KB] || XRT_image_crop_searchweb.png (320x180) [133.7 KB] || XRT_image_crop_web.png (320x318) [191.7 KB] || XRT_image_crop_thm.png (80x40) [26.1 KB] || ", "hits": 324 }, { "id": 14220, "url": "https://svs.gsfc.nasa.gov/14220/", "result_type": "Produced Video", "release_date": "2022-10-12T10:55:00-04:00", "title": "Hubble Reveals Ultra-Relativistic Jet", "description": "Astronomers using NASA’s Hubble Space Telescope have found a jet propelled through space at nearly the speed of light by the titanic collision between two neutron stars, which are the collapsed cores of massive supergiant stars.For more information, visit https://nasa.gov/hubble. Music & Sound“Grip the Nation” by JKyle Gabbidon [PRS] via Ninja Tune Production Music [PRS] and Universal Production Music || ", "hits": 73 }, { "id": 14170, "url": "https://svs.gsfc.nasa.gov/14170/", "result_type": "Produced Video", "release_date": "2022-08-10T10:00:00-04:00", "title": "NASA’s Fermi Confirms 'PeVatron' Supernova Remnant", "description": "Explore how astronomers located a supernova remnant that fires up protons to energies 10 times greater than the most powerful particle accelerator on Earth.Credit: NASA’s Goddard Space Flight CenterMusic: New Philosopher by Laurent Dury; Universal Production MusicWatch this video on the NASA Goddard YouTube channelComplete transcript available. || 14170-Found__A_PeVatron.01978_print.jpg (1024x576) [61.1 KB] || 14170-_PeVatron.webm (1920x1080) [15.1 MB] || 14170-_PeVatron.mp4 (1920x1080) [136.6 MB] || 14170-PeVatron.en_US.vtt [2.3 KB] || 14170-PeVatron.mov (1920x1080) [1.8 GB] || ", "hits": 519 }, { "id": 14090, "url": "https://svs.gsfc.nasa.gov/14090/", "result_type": "Produced Video", "release_date": "2022-02-12T00:00:00-05:00", "title": "Fermi's 12-year View of the Gamma-ray Sky", "description": "This image shows the entire sky as seen by Fermi's Large Area Telescope. The most prominent feature is the bright, diffuse glow running along the middle of the map, which marks the central plane of our Milky Way galaxy. The gamma rays there are mostly produced when energetic particles accelerated in the shock waves of supernova remnants collide with gas atoms and even light between the stars. Many of the star-like features above and below the Milky Way plane are distant galaxies powered by supermassive black holes. Many of the bright sources along the plane are pulsars. The image was constructed from 12 years of observations using front-converting gamma rays with energies greater than 1 GeV. Hammer projection.Credit: NASA/DOE/Fermi LAT Collaboration || Fermi_144-month_Fermi_all-sky_hammer_2160x1080.png (2160x1080) [2.4 MB] || Fermi_144-month_Fermi_all-sky_hammer_2160x1080_print.jpg (1024x512) [306.6 KB] || Fermi_144-month_Fermi_all-sky_hammer_4000x2000.png (4000x2000) [7.0 MB] || Fermi_144-month_Fermi_all-sky_hammer_3600x1800.png (3600x1800) [4.9 MB] || ", "hits": 186 }, { "id": 13886, "url": "https://svs.gsfc.nasa.gov/13886/", "result_type": "Produced Video", "release_date": "2021-07-26T11:00:00-04:00", "title": "NASA's Fermi Spots 'Fizzled' Burst from Collapsing Star", "description": "Astronomers combined data from NASA's Fermi Gamma-ray Space Telescope, other space missions, and ground-based observatories to reveal the origin of GRB 200826A, a brief but powerful burst of radiation. It’s the shortest burst known to be powered by a collapsing star – and almost didn’t happen at all. Credit: NASA's Goddard Space Flight CenterMusic: \"Inducing Waves\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Fizzled_GRB_Still.jpg (1920x1080) [740.9 KB] || Fizzled_GRB_Still_print.jpg (1024x576) [286.8 KB] || Fizzled_GRB_Still_searchweb.png (320x180) [72.2 KB] || Fizzled_GRB_Still_thm.png (80x40) [4.9 KB] || 13886_Fizzled_GRB_1080.mp4 (1920x1080) [147.2 MB] || 13886_Fizzled_GRB_1080_Best.mp4 (1920x1080) [453.2 MB] || 13886_Fizzled_GRB_ProRes_1920x1080_2997.mov (1920x1080) [2.5 GB] || 13886_Fizzled_GRB_1080.webm (1920x1080) [22.5 MB] || ", "hits": 120 }, { "id": 13816, "url": "https://svs.gsfc.nasa.gov/13816/", "result_type": "Produced Video", "release_date": "2021-02-19T00:00:00-05:00", "title": "Fermi Gamma-ray Space Telescope Spacecraft Animation", "description": "NASA’s Fermi Gamma-ray Space Telescope, illustrated here, scans the entire sky every three hours as it orbits Earth.Credit: NASA's Goddard Space Flight Center/Chris Smith (USRA/GESTAR) || Fermi_01_Still_print.jpg (1024x604) [53.5 KB] || Fermi_01_Still.png (3584x2114) [3.3 MB] || Fermi_01_Still_searchweb.png (320x180) [38.2 KB] || Fermi_01_Still_thm.png (80x40) [7.0 KB] || fermi_01_comp_060519_1080.mp4 (1920x1080) [29.5 MB] || fermi_01_comp_060519_1080.webm (1920x1080) [2.1 MB] || fermi_01_comp_060519_ProRes_1920x1080_24.mov (1920x1080) [201.2 MB] || ", "hits": 58 }, { "id": 13792, "url": "https://svs.gsfc.nasa.gov/13792/", "result_type": "Produced Video", "release_date": "2021-01-13T12:15:00-05:00", "title": "NASA Missions Unveil Magnetar Eruptions in Nearby Galaxies", "description": "On April 15, 2020, a wave of X-rays and gamma rays lasting only a fraction of a second triggered detectors on NASA and European spacecraft. The event was a giant flare from a magnetar, a type of city-sized stellar remnant that boasts the strongest magnetic fields known. Watch to learn more.Credit: NASA’s Goddard Space Flight CenterMusic: \"Collision Course-Alternative Version\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || MGF_Video_Still.jpg (1920x1080) [602.3 KB] || MGF_Video_Still_print.jpg (1024x576) [264.7 KB] || MGF_Video_Still_searchweb.png (320x180) [74.9 KB] || MGF_Video_Still_thm.png (80x40) [5.7 KB] || 13792_Magnetar_Giant_Flare_ProRes_1920x1080_2997.mov (1920x1080) [2.6 GB] || 13792_Magnetar_Giant_Flare_best_1080.mp4 (1920x1080) [498.6 MB] || 13792_Magnetar_Giant_Flare_good_1080.mp4 (1920x1080) [221.6 MB] || 13792_Magnetar_Giant_Flare_best_1080.webm (1920x1080) [24.0 MB] || 13792_Magnetar_Giant_Flare_SRT_Captions.en_US.srt [4.0 KB] || 13792_Magnetar_Giant_Flare_SRT_Captions.en_US.vtt [4.0 KB] || ", "hits": 269 }, { "id": 13696, "url": "https://svs.gsfc.nasa.gov/13696/", "result_type": "Produced Video", "release_date": "2020-08-25T11:00:00-04:00", "title": "Young Active Galaxy with ‘TIE Fighter’ Shape", "description": "This illustration shows two views of the active galaxy TXS 0128+554, located around 500 million light-years away. Left: The galaxy’s central jets appear as they would if we viewed them both at the same angle. The black hole, embedded in a disk of dust and gas, launches a pair of particle jets traveling at nearly the speed of light. Scientists think gamma rays (magenta) detected by NASA’s Fermi Gamma-ray Space Telescope originate from the base of these jets. As the jets collide with material surrounding the galaxy, they form identical lobes seen at radio wavelengths (orange). The jets experienced two distinct bouts of activity, which created the gap between the lobes and the black hole. Right: The galaxy appears in its actual orientation, with its jets tipped out of our line of sight by about 50 degrees.Credit: NASA’s Goddard Space Flight Center || TXS0128_Side-by-Side_FInal.jpg (7680x2160) [1.8 MB] || TXS0128_Side-by-Side_FInal_Half.jpg (3840x1080) [601.5 KB] || TXS0128_Side-by-Side_FInal_print.jpg (1024x288) [45.4 KB] || TXS0128_Side-by-Side_FInal.jpg.dzi (7680x2160) [178 bytes] || TXS0128_Side-by-Side_FInal.jpg_files (1x1) [4.0 KB] || ", "hits": 103 }, { "id": 13590, "url": "https://svs.gsfc.nasa.gov/13590/", "result_type": "Produced Video", "release_date": "2020-04-23T10:00:00-04:00", "title": "Build Your Own Fermi Satellite", "description": "With a printer, scissors, glue and wooden skewers, you can make your own replica of the Fermi spacecraft. Grab the files to make your own here: https://go.nasa/papermodels Credit: NASA's Goddard Space Flight CenterMusic Credit: \"Bahama Beats\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || PaperModelFermi_ProRes_1920x1080_2997.02354_print.jpg (1024x576) [169.3 KB] || PaperModelFermi_ProRes_1920x1080_2997.02354_searchweb.png (320x180) [109.7 KB] || PaperModelFermi_ProRes_1920x1080_2997.02354_thm.png (80x40) [6.6 KB] || PaperModelFermi_Best.mp4 (1920x1080) [256.9 MB] || PaperModelFermi_ProRes_1920x1080_2997.mov (1920x1080) [1.5 GB] || PaperModelFermi_Good.mp4 (1920x1080) [109.9 MB] || PaperModelFermi_Best.webm (1920x1080) [12.1 MB] || PaperModelFermi_SRT_Captions.en_US.srt [1.3 KB] || PaperModelFermi_SRT_Captions.en_US.vtt [1.4 KB] || ", "hits": 33 }, { "id": 13578, "url": "https://svs.gsfc.nasa.gov/13578/", "result_type": "Produced Video", "release_date": "2020-04-13T11:00:00-04:00", "title": "NASA Missions Study a Nova's Shock Waves", "description": "NASA’s Fermi and NuSTAR space telescopes, together with another satellite named BRITE-Toronto, are providing new insights into a nova explosion that erupted in 2018. Detailed measurements of bright flares in the explosion clearly show that shock waves power most of the nova's visible light. Credit: NASA’s Goddard Space Flight CenterMusic: \"Scientist\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || novastill01.jpg (3840x2160) [1.1 MB] || novastill01_searchweb.png (320x180) [76.8 KB] || novastill01_thm.png (80x40) [6.7 KB] || 13578_Nova_Carinae_Best.webm (1920x1080) [13.8 MB] || novastill01.tif (3840x2160) [31.7 MB] || 13578_Nova_Carinae_SRT_Captions.en_US.srt [2.2 KB] || 13578_Nova_Carinae_SRT_Captions.en_US.vtt [2.2 KB] || 13578_Nova_Carinae_Best.mp4 (1920x1080) [319.4 MB] || 13578_Nova_Carinae_Good.mp4 (1920x1080) [129.0 MB] || 13578_Nova_Carinae_ProRes_1920x1080_2997.mov (1920x1080) [1.4 GB] || ", "hits": 191 }, { "id": 13209, "url": "https://svs.gsfc.nasa.gov/13209/", "result_type": "Produced Video", "release_date": "2019-12-19T12:00:00-05:00", "title": "NASA’s Fermi Finds Vast ‘Halo’ Around Nearby Pulsar", "description": "Astronomers using data from NASA’s Fermi mission have discovered a pulsar with a faint gamma-ray glow that spans a huge part of the sky. Watch to learn more.Credit: NASA’s Goddard Space Flight CenterMusic: \"Insight\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Geminga_Still.jpg (1920x1080) [177.1 KB] || Geminga_Still_print.jpg (1024x576) [65.2 KB] || Geminga_Still_searchweb.png (320x180) [75.1 KB] || Geminga_Still_thm.png (80x40) [5.6 KB] || 13209_Fermi_Geminga_Halo_ProRes_1920x1080_2997.mov (1920x1080) [1.7 GB] || 13209_Fermi_Geminga_Halo_1080_Best.mp4 (1920x1080) [294.5 MB] || 13209_Fermi_Geminga_Halo_1080_Best.webm (1920x1080) [15.3 MB] || 13209_Fermi_Geminga_Halo_1080_Good.mp4 (1920x1080) [144.1 MB] || Fermi_Geminga_Halo_SRT_Captions.en_US.srt [1.7 KB] || Fermi_Geminga_Halo_SRT_Captions.en_US.vtt [1.7 KB] || ", "hits": 111 }, { "id": 13427, "url": "https://svs.gsfc.nasa.gov/13427/", "result_type": "Produced Video", "release_date": "2019-11-20T13:00:00-05:00", "title": "A New Era in Gamma-ray Science", "description": "On Jan. 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov (MAGIC) observatory in the Canary Islands captured the highest-energy light every recorded from a gamma-ray burst. MAGIC began observing the fading burst just 50 seconds after it was detected thanks to positions provided by NASA's Fermi and Swift spacecraft (top left and right, respectively, in this illustration). The gamma rays packed energy up to 10 times greater than previously seen. Credit: NASA/Fermi and Aurore Simonnet, Sonoma State University || GRB190114CbASimonnet.jpg (2475x3300) [4.5 MB] || GRB190114CbASimonnet_searchweb.png (320x180) [106.4 KB] || GRB190114CbASimonnet_thm.png (80x40) [6.6 KB] || ", "hits": 111 }, { "id": 13236, "url": "https://svs.gsfc.nasa.gov/13236/", "result_type": "Produced Video", "release_date": "2019-08-15T09:50:00-04:00", "title": "Fermi Sees the Moon in Gamma Rays", "description": "These images show the steadily improving view of the Moon’s gamma-ray glow from NASA’s Fermi Gamma-ray Space Telescope. Each 5-by-5-degree image is centered on the Moon and shows gamma rays with energies above 31 million electron volts, or tens of millions of times that of visible light. At these energies, the Moon is actually brighter than the Sun. Brighter colors indicate greater numbers of gamma rays. This image sequence shows how longer exposure, ranging from two to 128 months (10.7 years), improved the view.Credit: NASA/DOE/Fermi LAT Collaboration || MoonvsTimesingleimageen.jpg (4322x2161) [5.2 MB] || ", "hits": 110 }, { "id": 13272, "url": "https://svs.gsfc.nasa.gov/13272/", "result_type": "Produced Video", "release_date": "2019-08-09T00:00:00-04:00", "title": "Fermi and Gamma Rays: A Cartoon Look", "description": "NASA’s Fermi Gamma-ray Space Telescope detects gamma rays — the highest-energy form of light — often produced by objects like pulsars, the remnants of exploding stars and active galaxies powered by supermassive black holes. The satellite does not look for aliens, extraterrestrial life or anything of the sort. If aliens were to pass by the Fermi spacecraft, they would just slip by undetected. Unless, of course, that alien ship was powered by processes that left behind traces of gamma rays.Credit: NASA's Goddard Space Flight Center/Gabby Garcia || Alien_00121.jpg (1920x1080) [395.7 KB] || Alien_00121_print.jpg (1024x576) [143.1 KB] || Alien_00121_searchweb.png (320x180) [41.7 KB] || Alien_00121_thm.png (80x40) [4.4 KB] || Fermi_Alien_Animation_ProRes_1920x1080_24.mov (1920x1080) [76.6 MB] || 1920x1080_16x9_24p (1920x1080) [8.0 KB] || Fermi_Alien_Animation_1080.mp4 (1920x1080) [5.3 MB] || Fermi_Alien_Animation_ProRes_1920x1080_24.webm (1920x1080) [966.5 KB] || ", "hits": 138 }, { "id": 13156, "url": "https://svs.gsfc.nasa.gov/13156/", "result_type": "Produced Video", "release_date": "2019-03-19T12:00:00-04:00", "title": "NASA’s Fermi Satellite Clocks a ‘Cannonball’ Pulsar", "description": "New radio observations combined with 10 years of data from NASA’s Fermi Gamma-ray Space Telescope have revealed a runaway pulsar that escaped the blast wave of the supernova that formed it. Credit: NASA’s Goddard Space Flight CenterMusic: \"Forensic Scientist\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available.See the bottom of the page for a version without on-screen text. || CTA1_Still.jpg (1920x1080) [291.7 KB] || CTA1_Still_print.jpg (1024x576) [137.4 KB] || CTA1_Still_searchweb.png (320x180) [86.6 KB] || CTA1_Still_thm.png (80x40) [7.2 KB] || 13156_CTB1_Cannonball_Pulsar_ProRes_1920x1080_2997.mov (1920x1080) [2.0 GB] || 13156_CTB1_Cannonball_Pulsar_Best.mov (1920x1080) [727.8 MB] || 13156_CTB1_Cannonball_Pulsar_Good.mp4 (1920x1080) [400.9 MB] || 13156_CTB1_Cannonball_Pulsar.mp4 (1920x1080) [147.3 MB] || 13156_CTB1_Cannonball_Pulsar.m4v (1920x1080) [144.6 MB] || 13156_CTB1_Cannonball_Pulsar_ProRes_1920x1080_2997.webm (1920x1080) [15.7 MB] || 13156_CTB1_Cannonball_Pulsar_SRT_Captions.en_US.srt [1.9 KB] || 13156_CTB1_Cannonball_Pulsar_SRT_Captions.en_US.vtt [1.9 KB] || ", "hits": 94 }, { "id": 13104, "url": "https://svs.gsfc.nasa.gov/13104/", "result_type": "Produced Video", "release_date": "2018-11-29T14:00:00-05:00", "title": "Tracing the History of Starlight with NASA's Fermi Mission", "description": "Gamma rays from distant galaxies called blazars interact with starlight as they travel across the universe. As shown in this video, those reaching the Fermi Gamma-ray Space Telescope can help scientists learn about the history of star formation throughout the cosmos.Credit: NASA’s Goddard Space Flight CenterMusic: \"Inducing Waves\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || blazarEBL_Fog2-still.jpg (1920x1080) [165.1 KB] || blazarEBL_Fog2-still_print.jpg (1024x576) [53.5 KB] || blazarEBL_Fog2-still_searchweb.png (320x180) [50.2 KB] || blazarEBL_Fog2-still_thm.png (80x40) [4.5 KB] || 13104_Starlight_History_ProRes_1920x1080_2997.mov (1920x1080) [1.7 GB] || 13104_Starlight_History_1080p.mov (1920x1080) [205.4 MB] || 13104_Starlight_History_1080.mp4 (1920x1080) [138.8 MB] || 13104_Starlight_History_1080.m4v (1920x1080) [135.4 MB] || 13104_Starlight_History_1080.webm (1920x1080) [14.4 MB] || 13104_Starlight_History_SRT_Captions.en_US.srt [2.3 KB] || 13104_Starlight_History_SRT_Captions.en_US.vtt [2.2 KB] || ", "hits": 378 }, { "id": 13042, "url": "https://svs.gsfc.nasa.gov/13042/", "result_type": "Produced Video", "release_date": "2018-11-08T13:00:00-05:00", "title": "NASA's Fermi Mission Shows How Luck Favors the Prepared", "description": "Explore how more than a century of scientific progress with gravitational waves, gamma rays and neutrinos has helped bring about the age of multimessenger astronomy. Music: \"Family Tree,\" \"The Archives\" and \"Beyond Truth,\" all from Killer Tracks.Credit: NASA’s Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Luck_Timeline_Still_print.jpg (1024x576) [140.7 KB] || Luck_Timeline_Still.jpg (3840x2160) [1.1 MB] || Luck_Timeline_Still_searchweb.png (320x180) [78.5 KB] || Luck_Timeline_Still_thm.png (80x40) [7.4 KB] || 13042_LuckFavorsThePrepared_1080p.mov (1920x1080) [550.2 MB] || 13042_LuckFavorsThePrepared_1080.mp4 (1920x1080) [373.6 MB] || 13042_LuckFavorsThePrepared_1080.m4v (1920x1080) [188.4 MB] || 13042_LuckFavorsThePrepared_1080p.webm (1920x1080) [39.3 MB] || 13042_LuckFavorsThePrepared_ProRes_3840x2160_2997.mov (3840x2160) [19.8 GB] || 13042_LuckFavorsThePrepared_2160.mp4 (3840x2160) [1.1 GB] || 13042_LuckFavorsThePrepared_4K.mov (3840x2160) [715.2 MB] || LuckFavorsThePrepared_SRT_Captions.en_US.srt [6.5 KB] || LuckFavorsThePrepared_SRT_Captions.en_US.vtt [6.3 KB] || ", "hits": 240 }, { "id": 13094, "url": "https://svs.gsfc.nasa.gov/13094/", "result_type": "Produced Video", "release_date": "2018-11-08T13:00:00-05:00", "title": "Multimessenger Timeline Resources", "description": "The media elements below appear in the multimessenger astronomy video \"Luck Favors the Prepared.\" || A simple animation of a gamma ray moving through space.Credit: NASA's Goddard Space Flight Center || Gamma_Ray_animation.00001_print.jpg (1024x576) [15.9 KB] || Gamma_Ray_animation.00001_print_searchweb.png (320x180) [22.1 KB] || Gamma_Ray_animation.00001_print_thm.png (80x40) [2.3 KB] || Gamma_Ray_animation.mov (1280x720) [51.5 MB] || Gamma_Ray_animation.webm (1280x720) [773.0 KB] || || ", "hits": 87 }, { "id": 13097, "url": "https://svs.gsfc.nasa.gov/13097/", "result_type": "Produced Video", "release_date": "2018-10-17T12:30:00-04:00", "title": "Fermi Scientists Introduce Gamma-ray Constellations", "description": "Scientists with NASA’s Fermi Gamma-ray Space Telescope devised a set of constellations for the high-energy sky to highlight the mission’s 10th year of operations. Characters from modern myths, like the Hulk and the time-warping TARDIS from “Doctor Who,” represent one source of inspiration. Others include scientific concepts and tools, like the Fermi Satellite, and famous landmarks in countries contributing to the development and operation of Fermi. The mission has mapped about 3,000 gamma-ray sources -- 10 times the number known before its launch and comparable to the number of bright stars in the traditional constellations. The background shows the gamma-ray sky as mapped by Fermi. The prominent reddish band is the plane of our own galaxy, the Milky Way; brighter colors indicate brighter gamma-ray sources. Credit: NASA || GR_Constellations-NorthFermi_FullSize_FInal.gif (1920x930) [4.4 MB] || ", "hits": 118 }, { "id": 4644, "url": "https://svs.gsfc.nasa.gov/4644/", "result_type": "Visualization", "release_date": "2018-10-10T11:00:00-04:00", "title": "Pulsar Current Sheets - Bulk Particle Trajectories", "description": "This movie presents a basic tour around the simulation magnetic field including motion of the bulk particles. This version is generated with some simple reference objects for more general use. || PulsarParticles_grid_bulk_tour_inertial.HD1080i.01001_print.jpg (1024x576) [112.0 KB] || tour-glyph (1920x1080) [0 Item(s)] || PulsarParticles_grid_bulk_tour.HD1080i_p30.mp4 (1920x1080) [67.7 MB] || PulsarParticles_grid_bulk_tour.HD1080i_p30.webm (1920x1080) [5.3 MB] || tour-glyph (3840x2160) [0 Item(s)] || PulsarParticles_grid_bulk_tour_2160p30.mp4 (3840x2160) [129.1 MB] || PulsarParticles_grid_bulk_tour.HD1080i_p30.mp4.hwshow [208 bytes] || ", "hits": 77 }, { "id": 13041, "url": "https://svs.gsfc.nasa.gov/13041/", "result_type": "Produced Video", "release_date": "2018-08-17T14:00:00-04:00", "title": "Fermi's Gamma-ray Burst Monitor", "description": "The Gamma-ray Burst Monitor (GBM) is one of the instruments aboard the Fermi Gamma-ray Space Telescope. The GBM studies gamma-ray bursts, the most powerful explosions in the universe, as well as other flashes of gamma rays. Gamma-ray bursts are created when massive stars collapse into black holes or when two superdense stars merge, also producing a black hole. The GBM sees these bursts across the entire sky, and scientists are using its observations to learn more about the universe.Music:The Success by Keys of Moon | https://soundcloud.com/keysofmoonMusic promoted by https://www.free-stock-music.comCreative Commons Attribution 3.0 Unported Licensehttps://creativecommons.org/licenses/by/3.0/deed.en_USWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Fermi_GBM_Still_1.jpg (1920x1080) [231.2 KB] || Fermi_GBM_Still_1_searchweb.png (320x180) [43.6 KB] || Fermi_GBM_Still_1_thm.png (80x40) [4.9 KB] || 13041_Fermi_GBM_TOS_ProRes_1920x1080_24.mov (1920x1080) [811.2 MB] || 13041_Fermi_GBM_TOS_H264_1080p.mov (1920x1080) [59.2 MB] || 13041_Fermi_GBM_TOS_1080.mp4 (1920x1080) [84.9 MB] || 13041_Fermi_GBM_TOS_Apple_1080.m4v (1920x1080) [52.9 MB] || 13041_Fermi_GBM_TOS_ProRes_1920x1080_24.webm (1920x1080) [11.7 MB] || 13041_Fermi_GBM_TOS_SRT_Captions.en_US.srt [2.1 KB] || 13041_Fermi_GBM_TOS_SRT_Captions.en_US.vtt [2.0 KB] || ", "hits": 147 }, { "id": 12994, "url": "https://svs.gsfc.nasa.gov/12994/", "result_type": "Produced Video", "release_date": "2018-07-12T11:00:00-04:00", "title": "NASA's Fermi Links Cosmic Neutrino to Monster Black Hole", "description": "The discovery of a high-energy neutrino on Sept. 22, 2017, sent astronomers on a chase to locate its source -- a supermassive black hole in a distant galaxy. Watch to learn more.Credit: NASA’s Goddard Space Flight CenterMusic: \"Hidden Tides\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Blazar.00590_print.jpg (1024x576) [61.2 KB] || Blazar.00590.png (3840x2160) [5.2 MB] || Blazar.00590.jpg (3840x2160) [536.3 KB] || Blazar.00590_searchweb.png (320x180) [46.6 KB] || Blazar.00590_thm.png (80x40) [4.6 KB] || 12994_Fermi_Blazar_Neutrino_1080p.webm (1920x1080) [17.1 MB] || 12994_Fermi_Blazar_Neutrino_1080.mp4 (1920x1080) [154.8 MB] || 12994_Fermi_Blazar_Neutrino_1080p.mov (1920x1080) [229.5 MB] || 12994_Fermi_Blazar_Neutrino_SRT_Captions.en_US.srt [2.8 KB] || 12994_Fermi_Blazar_Neutrino_SRT_Captions.en_US.vtt [2.7 KB] || 12994_Fermi_Blazar_Neutrino_H264_4k_2997.mp4 (3840x2160) [380.3 MB] || 12994_Fermi_Blazar_Neutrino_4K.mov (3840x2160) [445.0 MB] || 12994_Fermi_Blazar_Neutrino_ProRes_4k_2997.mov (3840x2160) [6.5 GB] || ", "hits": 170 }, { "id": 20281, "url": "https://svs.gsfc.nasa.gov/20281/", "result_type": "Animation", "release_date": "2018-07-12T11:00:00-04:00", "title": "Blazar Animations", "description": "This animation shows the central supermassive black hole of a blazar. The black hole is surrounded by a bright accretion disk and a darker torus of gas and dust. A bright jet of particles emerges from above and below the black hole. Collisions within the jet produce high-energy photons such as gamma rays. A flare from the blazar results in an additional burst of gamma rays and neutrinos. || BlazarProRes.00801_print.jpg (1024x576) [56.1 KB] || BlazarProRes.00801_searchweb.png (320x180) [63.8 KB] || BlazarProRes.00801_thm.png (80x40) [5.3 KB] || Blazar_1080_h264.mov (1920x1080) [46.2 MB] || Blazar_frames (3840x2160) [0 Item(s)] || BlazarProRes.webm (3840x2160) [4.2 MB] || BlazarProRes.mov (3840x2160) [3.0 GB] || Blazar_4444.mov (3840x2160) [6.2 GB] || Blazar_1080_h264.hwshow [69 bytes] || ", "hits": 253 }, { "id": 12969, "url": "https://svs.gsfc.nasa.gov/12969/", "result_type": "Produced Video", "release_date": "2018-06-11T10:00:00-04:00", "title": "Fermi Satellite Celebrates 10 Years of Discoveries", "description": "Watch a two-minute video on how NASA's Fermi Gamma-ray Space Telescope has revolutionized our understanding of the high-energy sky over its first 10 years in space. Credit: NASA's Goddard Space Flight CenterMusic: \"Unseen Husband\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Fermi_10_Still.jpg (1920x1080) [134.3 KB] || 12969_Fermi_10th_Short_ProRes_1920x1080_2997.mov (1920x1080) [2.3 GB] || 12969_Fermi_10th_Short_1080.m4v (1920x1080) [172.3 MB] || 12969_Fermi_10th_Short_1080p.mov (1920x1080) [259.5 MB] || 12969_Fermi_10th_Short.mp4 (1920x1080) [174.7 MB] || 12969_Fermi_10th_Short_ProRes_1920x1080_2997.webm (1920x1080) [18.7 MB] || 12969_Fermi_10th_Short_SRT_Captions.en_US.srt [3.3 KB] || 12969_Fermi_10th_Short_SRT_Captions.en_US.vtt [3.3 KB] || ", "hits": 89 }, { "id": 12952, "url": "https://svs.gsfc.nasa.gov/12952/", "result_type": "Produced Video", "release_date": "2018-05-18T00:00:00-04:00", "title": "A Decade of Fermi TGFs", "description": "Visualization of ten years of Fermi observations of Terrestrial Gamma-ray Flashes (TGFs). This version is optimized for display on normal screens, has labels, and dates for each data pass. || u3540.png (4096x2048) [5.9 MB] || u3540_print.jpg (1024x512) [122.2 KB] || u3540_searchweb.png (320x180) [71.4 KB] || u3540_thm.png (80x40) [5.8 KB] || Fermi_TGF_Flat_Years_1080p.mov (1920x960) [73.6 MB] || Fermi_TGF_Flat_Years_1080p.webm (1920x960) [9.1 MB] || Fermi_TGF_Flat_Years_ProRes_4096x2048.mov (4096x2048) [8.4 GB] || Fermi_TGF_Flat_Years_4K.mp4 (4096x2048) [321.7 MB] || Fermi_TGF_Flat_Years_4K.mov (4096x2048) [303.4 MB] || Fermi_TGF_Flat_Years_1080p.mp4 (2160x1080) [161.2 MB] || ", "hits": 78 }, { "id": 12452, "url": "https://svs.gsfc.nasa.gov/12452/", "result_type": "Produced Video", "release_date": "2017-04-24T13:00:00-04:00", "title": "NASA's Fermi Catches Gamma-ray Flashes from Tropical Storms", "description": "Storm clouds produce some of the highest-energy light naturally made on Earth: terrestrial gamma-ray flashes (TGFs). Using data from NASA's Fermi Gamma-ray Space Telescope and ground-based lightning detection networks, scientists tracking these fleeting outbursts are beginning to learn more about how conditions in hurricanes, typhoons and other tropical weather systems set the stage for TGFs. Credit: NASA's Goddard Space Flight CenterMusic: Glacial Fields and The Piper from Killer Tracks.Watch this video on the NASA Goddard YouTube channel.Complete transcript available. || Bolaven_Still.jpg (1920x1080) [449.4 KB] || Bolaven_Still_print.jpg (1024x576) [157.2 KB] || Bolaven_Still_searchweb.png (320x180) [102.2 KB] || Bolaven_Still_thm.png (80x40) [6.9 KB] || 12452_Fermi_TGF_Tropical_Storm_ProRes_1920x1080_2997.mov (1920x1080) [2.9 GB] || 12452_Fermi_TGF_Tropical_Storm_FINAL_youtube_hq.mov (1920x1080) [899.5 MB] || 12452_Fermi_TGF_Tropical_Storm-1080.mov (1920x1080) [330.1 MB] || 12452_Fermi_TGF_Tropical_Storm-1080_Good.m4v (1920x1080) [219.8 MB] || 12452_Fermi_TGF_Tropical_Storm-compatible.m4v (960x540) [86.1 MB] || 12452_Fermi_TGF_Tropical_Storm_FINAL_appletv.m4v (1280x720) [115.9 MB] || WMV_12452_Fermi_TGF_Tropical_Storm_FINAL_HD.wmv (1920x1080) [223.9 MB] || 12452_Fermi_TGF_Tropical_Storm-compatible.webm (960x540) [24.1 MB] || 12452_Fermi_TGF_Tropical_Storm_FINAL_appletv_subtitles.m4v (1280x720) [116.0 MB] || Fermi_TGF_Tropical_Storm_SRT_Captions.en_US.srt [3.6 KB] || Fermi_TGF_Tropical_Storm_SRT_Captions.en_US.vtt [3.6 KB] || ", "hits": 75 }, { "id": 12505, "url": "https://svs.gsfc.nasa.gov/12505/", "result_type": "Produced Video", "release_date": "2017-02-21T14:00:00-05:00", "title": "Fermi Detects Gamma-ray Puzzle from M31", "description": "NASA's Fermi telescope has detected a gamma-ray excess at the center of the Andromeda Galaxy that's similar to a signature Fermi previously detected at the center of our own Milky Way. Watch to learn more. Credit: NASA's Goddard Space Flight Center/Scott Wiessinger, producerMusic: \"Lost Time\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || 12505_Fermi_M31_FINAL_appletv.00382_print.jpg (1024x576) [172.8 KB] || Fermi_M31_Still_searchweb.png (320x180) [92.6 KB] || Fermi_M31_Still_thm.png (80x40) [5.9 KB] || 12505_Fermi_M31_ProRes_1920x1080_2997.mov (1920x1080) [1.1 GB] || 12505_Fermi_M31_FINAL_youtube_hq.mov (1920x1080) [674.5 MB] || 12505_Fermi_M31_1080p.mov (1920x1080) [128.2 MB] || 12505_Fermi_M31_Good_1080.m4v (1920x1080) [85.0 MB] || 12505_Fermi_M31_FINAL_appletv.m4v (1280x720) [41.7 MB] || 12505_Fermi_M31_Compatible.m4v (960x540) [34.7 MB] || WMV_12505_Fermi_M31_FINAL_HD.wmv (1920x1080) [205.4 MB] || 12505_Fermi_M31_FINAL_appletv_subtitles.m4v (1280x720) [41.7 MB] || 12505_Fermi_M31_Compatible.webm (960x540) [9.0 MB] || 12505_Fermi_M31_SRT_Captions.en_US.srt [854 bytes] || 12505_Fermi_M31_SRT_Captions.en_US.vtt [867 bytes] || ", "hits": 84 }, { "id": 12451, "url": "https://svs.gsfc.nasa.gov/12451/", "result_type": "Produced Video", "release_date": "2017-01-30T11:30:00-05:00", "title": "Fermi Sees Gamma Rays from Far Side Solar Flares", "description": "On three occasions, NASA's Fermi Gamma-ray Space Telescope has detected gamma rays from solar storms on the far side of the sun, emission the Earth-orbiting satellite shouldn't be able to detect. Particles accelerated by these eruptions somehow reach around to produce a gamma-ray glow on the side of the sun facing Earth and Fermi. Watch to learn more. Credit: NASA's Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.Complete transcript available.This illustration shows large magnetic structures extending high above the sun from the active region hosting the Sept. 1, 2014, solar blast. Left: Scientists think particles accelerated at the leading edge of the event's coronal mass ejection followed magnetic lines high above the sun. Right: Some of the particles followed similar magnetic structures rooted in the Earth-facing side of the sun. They rained down on the sun and interacted with the solar surface, producing gamma rays (magenta). The solar images shown here come from (left) STEREO B and (right) NASA's Solar Dynamics Observatory. Credit: NASA/STEREO and NASA/SDO || STEREO-SDO_Fermi_Still.jpg (1920x1080) [433.9 KB] || STEREO-SDO_Fermi_Still_searchweb.png (320x180) [101.1 KB] || STEREO-SDO_Fermi_Still_thm.png (80x40) [7.7 KB] || 12451_Fermi_Farside_Flares_ProRes_1920x1080_2997.mov (1920x1080) [2.5 GB] || 12451_Fermi_Farside_Flares_FINAL_youtube_hq.mov (1920x1080) [1.2 GB] || 12451_Fermi_Farside_Flares-H264_1080.mov (1920x1080) [286.5 MB] || 12451_Fermi_Farside_Flares-H264_Good_1080.m4v (1920x1080) [190.5 MB] || 12451_Fermi_Farside_Flares_FINAL_appletv.m4v (1280x720) [100.4 MB] || 12451_Fermi_Farside_Flares-H264_Compatible.m4v (960x540) [74.4 MB] || 12451_Fermi_Farside_Flares_FINAL_appletv_subtitles.m4v (1280x720) [100.5 MB] || 12451_Fermi_Farside_Flares-H264_Compatible.webm (960x540) [20.5 MB] || 12451_Fermi_Farside_Flares_SRT_Captions.en_US.srt [3.3 KB] || 12451_Fermi_Farside_Flares_SRT_Captions.en_US.vtt [3.3 KB] || ", "hits": 91 }, { "id": 12454, "url": "https://svs.gsfc.nasa.gov/12454/", "result_type": "Produced Video", "release_date": "2017-01-30T11:00:00-05:00", "title": "Fermi Finds the Farthest Blazars", "description": "NASA's Fermi Gamma-ray Space Telescope has discovered the five most distant gamma-ray blazars yet known. The light detected by Fermi left these galaxies by the time the universe was two billion years old. Two of these galaxies harbor billion-solar-mass black holes that challenge current ideas about how quickly such monsters could grow.Watch this video on the NASA Goddard YouTube channel.Complete transcript available. || Distant_Blazars_Still.jpg (1920x1080) [493.4 KB] || Distant_Blazars_Still_searchweb.png (320x180) [74.1 KB] || Distant_Blazars_Still_thm.png (80x40) [5.6 KB] || 12454_Fermi_Distant_Blazars_ProRes_1920x1080_2997.mov (1920x1080) [2.4 GB] || 12454_Fermi_Distant_Blazars_FINAL_youtube_hq.mov (1920x1080) [1.0 GB] || 12454_Fermi_Distant_Blazars-H264_1080p.mov (1920x1080) [273.0 MB] || WMV_12454_Fermi_Distant_Blazars_FINAL_HD.wmv (1920x1080) [194.9 MB] || 12454_Fermi_Distant_Blazars-H264_Good_1080.m4v (1920x1080) [181.4 MB] || 12454_Fermi_Distant_Blazars_FINAL_appletv.m4v (1280x720) [87.3 MB] || 12454_Fermi_Distant_Blazars-H264_Compatible.m4v (960x540) [73.6 MB] || 12454_Fermi_Distant_Blazars_FINAL_appletv_subtitles.m4v (1280x720) [87.4 MB] || 12454_Fermi_Distant_Blazars-H264_Compatible.webm (960x540) [19.5 MB] || 12454_Fermi_Distant_Blazars_SRT_Captions.en_US.srt [3.1 KB] || 12454_Fermi_Distant_Blazars_SRT_Captions.en_US.vtt [3.1 KB] || ", "hits": 238 }, { "id": 12376, "url": "https://svs.gsfc.nasa.gov/12376/", "result_type": "Produced Video", "release_date": "2016-09-29T13:00:00-04:00", "title": "Fermi Finds Record-breaking Gamma-ray Binary", "description": "Dive into the Large Magellanic Cloud and see a visualization of LMC P3, an extraordinary gamma-ray binary system discovered by NASA's Fermi Gamma-ray Space Telescope. Credit: NASA's Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || LMC_P3_Still_2.jpg (2880x1620) [539.2 KB] || LMC_P3_Still_2_searchweb.png (320x180) [58.0 KB] || LMC_P3_Still_2_thm.png (80x40) [4.3 KB] || LMC_P3_FB_Final_ProRes_1920x1080_2997.mov (1920x1080) [1.3 GB] || 12376_LMC_P3_FB_Final_youtube_hq.mov (1920x1080) [660.0 MB] || LMC_P3_FB_Final_H264.mp4 (1920x1080) [182.3 MB] || LMC_P3_FB_Final_H264_HD_1080p.mov (1920x1080) [137.8 MB] || 12376_LMC_P3_FB_Final_large.mp4 (1920x1080) [92.6 MB] || LMC_P3_FB_Final_Apple_Devices_HD.m4v (1920x1080) [90.7 MB] || 12376_LMC_P3_FB_Final_appletv.m4v (1280x720) [42.5 MB] || 12376_LMC_P3_FB_Final_appletv.webm (1280x720) [9.9 MB] || 12376_LMC_P3_FB_Final_appletv_subtitles.m4v (1280x720) [42.5 MB] || 12376_LMC_P3_SRT_Captions.en_US.srt [373 bytes] || 12376_LMC_P3_SRT_Captions.en_US.vtt [386 bytes] || ", "hits": 77 }, { "id": 20241, "url": "https://svs.gsfc.nasa.gov/20241/", "result_type": "Animation", "release_date": "2016-09-20T14:00:00-04:00", "title": "The Electromagnetic Spectrum", "description": "Animation depicting the electromagnetic spectrum and the different characteristics of each wavelength type. 4k resolution. || WFirst_ElectromagneticSpectrum.0830_print.jpg (1024x576) [228.7 KB] || WFirst_ElectromagneticSpectrum.0830.png (3840x2160) [13.8 MB] || WFirst_ElectromagneticSpectrum.0830_searchweb.png (320x180) [105.9 KB] || WFirst_ElectromagneticSpectrum.0830_thm.png (80x40) [7.1 KB] || WFirst_LightSpectrum_Final_H264_HD_1080p.mov (1920x1080) [150.2 MB] || WFirst_LightSpectrum_Final_H264_HD_1080p.webm (1920x1080) [8.7 MB] || WFirst_LightSpectrum_Final_4K_ProRes.mov (3840x2160) [5.6 GB] || 3840x2160_16x9_30p (3840x2160) [256.0 KB] || WFirst_LightSpectrum_Final_H264-4K.mov (3840x2160) [196.0 MB] || ", "hits": 180 }, { "id": 12317, "url": "https://svs.gsfc.nasa.gov/12317/", "result_type": "Produced Video", "release_date": "2016-08-12T13:00:00-04:00", "title": "NASA's Fermi Mission Broadens its Dark Matter Search", "description": "Top: Gamma rays (magenta lines) coming from a bright source like NGC 1275 in the Perseus galaxy cluster should form a particular type of spectrum (right). Bottom: Gamma rays convert into hypothetical axion-like particles (green dashes) and back again when they encounter magnetic fields (gray curves). The resulting gamma-ray spectrum (lower curve at right) would show unusual steps and gaps not seen in Fermi data, which means a range of these particles cannot make up a portion of dark matter.Credit: SLAC National Accelerator Laboratory/Chris Smith || ALP_2_sequences.gif (1074x580) [211.8 KB] || ", "hits": 135 }, { "id": 12218, "url": "https://svs.gsfc.nasa.gov/12218/", "result_type": "Produced Video", "release_date": "2016-04-28T12:00:00-04:00", "title": "Fermi Helps Link a Cosmic Neutrino to a Blazar Outburst", "description": "NASA Goddard scientist Roopesh Ojha explains how Fermi and TANAMI uncovered the first plausible link between a blazar eruption and a neutrino from deep space. Credit: NASA’s Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || UniverseHD1845_print.jpg (1024x576) [135.3 KB] || UniverseHD1845_searchweb.png (320x180) [85.8 KB] || UniverseHD1845_web.png (180x320) [85.8 KB] || UniverseHD1845_thm.png (80x40) [6.3 KB] || UniverseHD1845.tif (1920x1080) [7.9 MB] || 12218_Fermi_Blazar_Neutrino_FINAL_appletv.webm (1280x720) [30.3 MB] || 12218_Fermi_Blazar_Neutrino_FINAL_appletv.m4v (1280x720) [138.0 MB] || 12218_Fermi_Blazar_Neutrino_FINAL_appletv_subtitles.m4v (1280x720) [138.1 MB] || 12218_Fermi_Blazar_Neutrino_H264_Good_1920x1080_2997.mov (1920x1080) [315.8 MB] || 12218_Fermi_Blazar_Neutrino.mp4 (1920x1080) [292.0 MB] || 12218_Fermi_Blazar_Neutrino_SRT_Captions.en_US.srt [4.8 KB] || 12218_Fermi_Blazar_Neutrino_SRT_Captions.en_US.vtt [4.8 KB] || 12218_Fermi_Blazar_Neutrino_FINAL_youtube_hq.mov (1920x1080) [1.3 GB] || 12218_Fermi_Blazar_Neutrino_FINAL_lowres.mp4 (480x272) [38.6 MB] || 12218_Fermi_Blazar_Neutrino_H264_Best_1920x1080_2997.mov (1920x1080) [2.3 GB] || 12218_Fermi_Blazar_Neutrino_ProRes_1920x1080_2997.mov (1920x1080) [3.6 GB] || ", "hits": 168 }, { "id": 12194, "url": "https://svs.gsfc.nasa.gov/12194/", "result_type": "Produced Video", "release_date": "2016-04-07T12:55:00-04:00", "title": "The Compton Legacy: A Quarter-century of Gamma-ray Science", "description": "This illustration of the Compton Gamma Ray Observatory shows the locations of its four instruments, the Burst And Transient Source Experiment (BATSE), the Oriented Scintillation Spectrometer Experiment (OSSE), the Imaging Compton Telescope (COMPTEL), and the Energetic Gamma Ray Experiment Telescope (EGRET). Credit: NASA's Goddard Space Flight Center || GRO_cutaway_labels_1080.jpg (1920x1081) [668.9 KB] || GRO_cutaway_labels_2160.jpg (3840x2161) [5.2 MB] || GRO_cutaway_labels_2160_searchweb.png (320x180) [116.1 KB] || GRO_cutaway_labels_2160_thm.png (80x40) [12.2 KB] || ", "hits": 103 }, { "id": 12019, "url": "https://svs.gsfc.nasa.gov/12019/", "result_type": "Produced Video", "release_date": "2016-01-07T14:15:00-05:00", "title": "NASA's Fermi Mission Sharpens its High-energy View", "description": "Tour the best view of the high-energy gamma-ray sky yet seen. This video highlights the plane of our galaxy and identifies objects producing gamma rays with energies greater than 1 TeV. Watch this video on the NASA Goddard YouTube channel.For complete transcript, click here.Credit: NASA's Goddard Space Flight Center || 2FHL_Still_print.jpg (1024x576) [66.4 KB] || 2FHL_Still.png (3840x2160) [19.0 MB] || 2FHL_Still_searchweb.png (320x180) [55.9 KB] || 2FHL_Still_thm.png (80x40) [5.5 KB] || 12019_2FHL_H264_Good_1920x1080_2997.mov (1920x1080) [39.6 MB] || 12019_2FHL_H264_Good_1920x1080_2997.webm (1920x1080) [9.9 MB] || 12019_2FHL_3840x2160_FINAL_appletv.m4v (1280x720) [49.2 MB] || 12019_2FHL_3840x2160_FINAL_appletv_subtitles.m4v (1280x720) [49.3 MB] || 12019_2FHL_SRT_Captions.en_US.srt [330 bytes] || 12019_2FHL_SRT_Captions.en_US.vtt [343 bytes] || 12019_2FHL_3840x2160_2997_20mbps.mp4 (3840x2160) [190.4 MB] || 12019_2FHL_3840x2160_2997_40mbps.mp4 (3840x2160) [371.2 MB] || 12019_2FHL_3840x2160_FINAL_lowres.mp4 (480x272) [13.0 MB] || NASA_PODCAST_12019_2FHL_3840x2160_FINAL_ipod_sm.mp4 (320x240) [17.8 MB] || 12019_2FHL_ProRes_3840x2160_2997.mov (3840x2160) [3.8 GB] || ", "hits": 35 }, { "id": 12102, "url": "https://svs.gsfc.nasa.gov/12102/", "result_type": "Produced Video", "release_date": "2016-01-04T00:00:00-05:00", "title": "Fermi Hyperwall--2016 AAS, A Walk Through Fermi Science", "description": "3x3 hyperwall-resolution image of the Fermi Gamma-ray Space Telescope with instruments labeled.Credit: NASA/JIm Grossmann || Fermi_Hyperwall_2_2_Instruments_5760_print.jpg (1024x576) [86.4 KB] || Fermi_Hyperwall_2_2_Instruments_5760.png (5760x3240) [32.3 MB] || fermi-2-2-Instruments.hwshow [294 bytes] || For additional Fermi hyperwall visuals please check the second hyperwall page || ", "hits": 48 }, { "id": 12004, "url": "https://svs.gsfc.nasa.gov/12004/", "result_type": "Produced Video", "release_date": "2015-12-15T13:00:00-05:00", "title": "NASA's Fermi Satellite Kicks Off a Blazar Bonanza", "description": "Explore how gamma-ray telescopes in space and on Earth captured an outburst of high-energy light from PKS 1441+25, a black-hole-powered galaxy more than halfway across the universe.Credit: NASA's Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.For complete transcript, click here. || PKS_1441_still_1.png (1920x1080) [2.1 MB] || PKS_1441_still_1_print.jpg (1024x576) [45.3 KB] || PKS_1441_still_1_searchweb.png (320x180) [57.1 KB] || PKS_1441_still_1_thm.png (80x40) [7.6 KB] || PKS_1441_ProRes_1920x1080_2997.mov (1920x1080) [2.8 GB] || PKS_1441_H264_Best_1920x1080_2997.mov (1920x1080) [1.5 GB] || PKS_1441_H264_Good_1920x1080_2997.mov (1920x1080) [244.3 MB] || PKS_1441_Blazar_FINAL_youtube_hq.mov (1920x1080) [947.0 MB] || PKS_1441_1920x1080_4mbps.mp4 (1920x1080) [105.6 MB] || PKS_1441_Blazar_FINAL_appletv.m4v (1280x720) [126.1 MB] || PKS_1441_Blazar_FINAL_appletv.webm (1280x720) [26.3 MB] || PKS_1441_Blazar_FINAL_appletv_subtitles.m4v (1280x720) [126.2 MB] || PKS_1441_SRT_captions.en_US.srt [4.5 KB] || PKS_1441_SRT_captions.en_US.vtt [4.5 KB] || NASA_PODCAST_PKS_1441_Blazar_FINAL_ipod_sm.mp4 (320x240) [43.8 MB] || ", "hits": 91 }, { "id": 12003, "url": "https://svs.gsfc.nasa.gov/12003/", "result_type": "Produced Video", "release_date": "2015-11-12T14:00:00-05:00", "title": "Fermi finds the first extragalactic gamma-ray pulsar", "description": "Explore Fermi's discovery of the first gamma-ray pulsar detected in a galaxy other than our own.Credit: NASA's Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.For complete transcript, click here. || LMC_Pulsar_Multi.jpg (1920x1080) [634.9 KB] || LMC_Pulsar_Multi_print.jpg (1024x576) [191.7 KB] || LMC_Pulsar_Multi_searchweb.png (320x180) [72.6 KB] || LMC_Pulsar_Multi_thm.png (80x40) [4.8 KB] || LMC_Pulsar_ProRes_1920x1080_2997.mov (1920x1080) [2.8 GB] || LMC_Pulsar_H264_Best_1920x1080_2997.mov (1920x1080) [2.6 GB] || LMC_Pulsar_H264_Good_1920x1080_2997.mov (1920x1080) [668.4 MB] || G2015-084_LMC_Pulsar_Final_youtube_hq.mov (1920x1080) [1.5 GB] || LMC_Pulsar_MPEG4_1920X1080_2997.mp4 (1920x1080) [176.4 MB] || G2015-084_LMC_Pulsar_Final_appletv.m4v (1280x720) [112.5 MB] || LMC_Pulsar_Multi.tiff (1920x1080) [15.8 MB] || G2015-084_LMC_Pulsar_Final_appletv.webm (1280x720) [24.1 MB] || G2015-084_LMC_Pulsar_Final_appletv_subtitles.m4v (1280x720) [112.6 MB] || LMC_Pulsar_SRT_Captions.en_US.srt [3.8 KB] || LMC_Pulsar_SRT_Captions.en_US.vtt [3.9 KB] || NASA_PODCAST_G2015-084_LMC_Pulsar_Final_ipod_sm.mp4 (320x240) [40.8 MB] || ", "hits": 153 }, { "id": 12038, "url": "https://svs.gsfc.nasa.gov/12038/", "result_type": "Produced Video", "release_date": "2015-11-06T13:00:00-05:00", "title": "NASA's Swift Catches its 1,000th Gamma-ray Burst", "description": "Labeled image. GRB 151027B, Swift's 1,000th burst (center), is shown in this composite X-ray, ultraviolet and optical image. X-rays were captured by Swift's X-Ray Telescope, which began observing the field 3.4 minutes after the Burst Alert Telescope detected the blast. Swift's Ultraviolet/Optical Telescope (UVOT) began observations seven seconds later and faintly detected the burst in visible light. The image includes X-rays with energies from 300 to 6,000 electron volts, primarily from the burst, and lower-energy light seen through the UVOT's visible, blue and ultraviolet filters (shown, respectively, in red, green and blue). The image has a cumulative exposure of 10.4 hours. Credit: NASA/Swift/Phil Evans, Univ. of Leicester || grb151027B_UVOT_XRT_labeled_1080.jpg (912x1080) [403.9 KB] || grb151027B_UVOT_XRT_labeled_2160_print.jpg (1024x1213) [394.1 KB] || grb151027B_UVOT_XRT_labeled_2160.jpg (1823x2160) [1.0 MB] || grb151027B_UVOT_XRT_labeled_2160_searchweb.png (320x180) [43.8 KB] || grb151027B_UVOT_XRT_labeled_2160_thm.png (80x40) [3.6 KB] || ", "hits": 122 }, { "id": 12022, "url": "https://svs.gsfc.nasa.gov/12022/", "result_type": "Produced Video", "release_date": "2015-10-09T00:00:00-04:00", "title": "Poster: Fermi's Gamma-ray Cosmos", "description": "This poster summarizes the career to date of NASA's Fermi Gamma-ray Space Telescope. The central image is a map of the whole sky at gamma-ray wavelengths accumulated over six years of operations. The poster also discusses other Fermi findings, including a black widow pulsar, the Fermi Bubbles rising thousands of light-years out of our galaxy's center, a giant gamma-ray flare from the Crab Nebula, and many more.The poster is available in a variety of resolutions.Credit: NASA/Fermi/Sonoma State University/A. Simonnet || FskymaPoster15-2400_print.jpg (1024x658) [1.4 MB] || FskymaPoster15.jpg (11775x7575) [24.4 MB] || FskymaPoster15-half.jpg (5888x3788) [11.0 MB] || FskymaPoster15-3840.jpg (3840x2470) [6.3 MB] || FskymaPoster15-2400.jpg (2400x1544) [3.2 MB] || FskymaPoster15-2400_searchweb.png (320x180) [490.4 KB] || FskymaPoster15-2400_thm.png (80x40) [401.9 KB] || FskymaPoster15.tif (11775x7575) [340.8 MB] || ", "hits": 103 }, { "id": 11947, "url": "https://svs.gsfc.nasa.gov/11947/", "result_type": "Produced Video", "release_date": "2015-07-10T13:00:00-04:00", "title": "Fermi Spots a Record Flare from Blazar 3C 279", "description": "This visualization shows gamma rays detected during 3C 279's big flare by the LAT instrument on NASA's Fermi satellite. The flare is an abrupt shower of \"rain\" that trails off toward the end of the movie. Gamma rays are represented as expanding circles reminiscent of raindrops on water. Both the maximum size of the circle and its color represent the energy of the gamma ray, with white lowest and magenta highest. The highest-energy gamma ray the LAT detected during this flare, 52 billion electron volts, arrives near the end. In a second version of the visualization, a background map shows how the LAT detects 3C 279 and other sources by accumulating high-energy photons over time (brighter squares reflect higher numbers of gamma rays). The movie starts on June 14 and ends June 17. The area shown is a region of the sky five degrees on a side and centered on the position of 3C 279.  Credit: NASA/DOE/Fermi LAT CollaborationWatch this video on the NASA Goddard YouTube channel.For complete transcript, click here. || Fermi_Rain_Still2.jpg (1920x1080) [144.1 KB] || Fermi_Rain_Still2_print.jpg (1024x576) [51.2 KB] || Fermi_Rain_Still2_searchweb.png (320x180) [24.0 KB] || Fermi_Rain_Still2_thm.png (80x40) [5.0 KB] || Fermi_GammaRay_Rain_Final_1080.m4v (1920x1080) [81.8 MB] || WMV_Fermi_GammaRay_Rain_Final_1280x720.wmv (1280x720) [24.3 MB] || APPLE_TV_Fermi_GammaRay_Rain_Final_appletv.m4v (1280x720) [39.3 MB] || YOUTUBE_HQ_Fermi_GammaRay_Rain_Final_youtube_hq.webm (1280x720) [8.5 MB] || APPLE_TV_Fermi_GammaRay_Rain_Final_appletv_subtitles.m4v (1280x720) [39.3 MB] || Fermi_GammaRay_Rain_1080p.mov (1920x1080) [110.6 MB] || Fermi_GammaRay_Rain_Final_ProRes_1920x1080_2997.mov (1920x1080) [530.3 MB] || Fermi_GammaRay_Rain_SRT_Captions.en_US.srt [415 bytes] || Fermi_GammaRay_Rain_SRT_Captions.en_US.vtt [428 bytes] || ", "hits": 69 }, { "id": 11895, "url": "https://svs.gsfc.nasa.gov/11895/", "result_type": "Produced Video", "release_date": "2015-07-02T10:00:00-04:00", "title": "Astronomers Predict Cosmic Light Show from 2018 Stellar Encounter", "description": "Coming attraction: Astronomers are expecting high-energy explosions when pulsar J2032 swings around its massive companion star in early 2018. The pulsar will plunge through a disk of gas and dust surrounding the star, triggering cosmic fireworks. Scientists are planning a global campaign to watch the event across the spectrum, from radio waves to gamma rays. Credit: NASA's Goddard Space Flight CenterWatch this video on the NASA Goddard YouTube channel.For complete transcript, click here. || Binary_Pulsar_Still.png (1920x1080) [2.0 MB] || Binary_Pulsar_Still_print.jpg (1024x576) [88.4 KB] || Binary_Pulsar_Still_searchweb.png (320x180) [74.7 KB] || Binary_Pulsar_Still_thm.png (80x40) [8.1 KB] || 11895_Fermi_Binary_Pulsar_.mov (1920x1080) [1.5 GB] || 11895_Fermi_Binary_Pulsar_-H264_Best_1920x1080_29.97.mov (1920x1080) [523.1 MB] || 11895_Fermi_Binary_Pulsar_-H264_Good_1080_29.97.mov (1920x1080) [77.1 MB] || YOUTUBE_HQ_G2015-051_Fermi_Binary_Pulsar_FINAL_VX-171746_youtube_hq.mov (1280x720) [174.9 MB] || 11895_Fermi_Binary_Pulsar_MPEG4_1920X1080_2997.mp4 (1920x1080) [53.1 MB] || WMV_G2015-051_Fermi_Binary_Pulsar_FINAL_VX-171746_1280x720.wmv (1280x720) [48.3 MB] || APPLE_TV_G2015-051_Fermi_Binary_Pulsar_FINAL_VX-171746_appletv.m4v (1280x720) [71.5 MB] || 11895_Fermi_Binary_Pulsar_.webm (1920x1080) [14.4 MB] || APPLE_TV_G2015-051_Fermi_Binary_Pulsar_FINAL_VX-171746_appletv_subtitles.m4v (1280x720) [71.6 MB] || 11895_Fermi_Binary_Pulsar_SRT_Captions.en_US.srt [1.8 KB] || 11895_Fermi_Binary_Pulsar_SRT_Captions.en_US.vtt [1.8 KB] || ", "hits": 160 }, { "id": 20225, "url": "https://svs.gsfc.nasa.gov/20225/", "result_type": "Animation", "release_date": "2015-07-02T10:00:00-04:00", "title": "Binary Pulsar J2032 animation", "description": "Binary Pulsar J2032 animation || BinaryPulsar.png (1920x1080) [2.0 MB] || Cam1_00312_print.jpg (1024x576) [65.8 KB] || Cam1_00312_searchweb.png (320x180) [68.9 KB] || Cam1_00312_thm.png (80x40) [5.7 KB] || BinaryPulsar_1080p60.webm (1920x1080) [2.1 MB] || 1920x1080_16x9_60p (1920x1080) [32.0 KB] || BinaryPulsar_1080p60.mp4 (1920x1080) [11.6 MB] || Bin_pulsar_442.mov (1920x1080) [534.0 MB] || Bin_pulsar_H264.mov (1920x1080) [315.4 MB] || ", "hits": 293 }, { "id": 11894, "url": "https://svs.gsfc.nasa.gov/11894/", "result_type": "Produced Video", "release_date": "2015-06-23T14:00:00-04:00", "title": "Turning Black Holes into Dark Matter Labs", "description": "This video introduces a new computer simulation exploring the connection between two of the most elusive phenomena in the universe, black holes and dark matter. In the visualization, dark matter particles are gray spheres attached to shaded trails representing their motion. Redder trails indicate particles more strongly affected by the black hole's gravitation and closer to its event horizon (black sphere at center, mostly hidden by trails). The ergosphere, where all matter and light must follow the black hole's spin, is shown in teal. Watch this video on the NASA Goddard YouTube channel.Credit: NASA's Goddard Space Flight CenterFor complete transcript, click here. || DMBH_Still.jpg (1920x1080) [555.7 KB] || 11894_Dark_Matter_Black_Hole_H264_Good_1920x1080_2997.webm (1920x1080) [25.0 MB] || 11894_Dark_Matter_Black_Hole_ProRes_1920x1080_2997.mov (1920x1080) [3.1 GB] || 11894_Dark_Matter_Black_Hole_MPEG4_1920X1080_2997.mp4 (1920x1080) [135.4 MB] || 11894_Dark_Matter_Black_Hole_H264_Best_1920x1080_2997.mov (1920x1080) [2.1 GB] || 11894_Dark_Matter_Black_Hole_H264_Good_1920x1080_2997.mov (1920x1080) [356.2 MB] || G2015-040_Dark_Matter_Black_Hole_appletv.m4v (960x540) [93.0 MB] || G2015-040_Dark_Matter_Black_Hole_1280x720.wmv (1280x720) [103.5 MB] || G2015-040_Dark_Matter_Black_Hole_appletv_subtitles.m4v (960x540) [92.9 MB] || G2015-040_Dark_Matter_Black_Hole_ipod_lg.m4v (640x360) [37.6 MB] || 11894_Dark_Matter_Black_Hole_SRT_Captions.en_us.en_US.srt [4.2 KB] || 11894_Dark_Matter_Black_Hole_SRT_Captions.en_us.en_US.vtt [4.2 KB] || G2015-040_Dark_Matter_Black_Hole_ipod_sm.mp4 (320x240) [20.1 MB] || ", "hits": 258 }, { "id": 11808, "url": "https://svs.gsfc.nasa.gov/11808/", "result_type": "Produced Video", "release_date": "2015-03-17T12:00:00-04:00", "title": "Dr. John Mather Presentation: Traveling in Space and Time with the James Webb Space Telescope", "description": "Dr. John Mather presents - Traveling in Space and Time and the JamesWebb Telescope (TRT: 60 minutes) || John_Mather_Thumbnail_2_print.jpg (1024x576) [120.5 KB] || John_Mather_Thumbnail_2_searchweb.png (320x180) [83.6 KB] || John_Mather_Thumbnail_2_web.png (320x180) [83.6 KB] || John_Mather_Thumbnail_2_thm.png (80x40) [6.1 KB] || Mather_Presentation-1280x720-h264.webm (1280x720) [374.6 MB] || Mather_Presentation-1280x720-h264.mov (1280x720) [2.9 GB] || Mather_Presentation-720p_ProRes_master.mov (1280x720) [52.2 GB] || Mather_Presentation-640x360-h264.mov (640x360) [2.4 GB] || ", "hits": 27 }, { "id": 10278, "url": "https://svs.gsfc.nasa.gov/10278/", "result_type": "Produced Video", "release_date": "2014-12-15T13:29:00-05:00", "title": "NASA's Fermi Helps Scientists Study Gamma-ray Thunderstorms", "description": "New research merging Fermi data with information from ground-based radar and lightning networks shows that terrestrial gamma-ray flashes arise from an unexpected diversity of storms and may be more common than currently thought. Watch this video on the NASA Goddard YouTube channel. For complete transcript, click here. || Florida_TGF_still_print.jpg (1024x576) [115.1 KB] || Florida_TGF_still.jpg (1280x720) [169.4 KB] || Florida_TGF_still_thm.png (80x40) [8.7 KB] || Florida_TGF_still_searchweb.png (320x180) [75.0 KB] || Florida_TGF_still_web.jpg (320x180) [20.8 KB] || G2014-107_Fermi_TGF_Radar_FINAL_appletv_subtitles.m4v (960x540) [66.4 MB] || 10278_Fermi_TGF_Radar_ProRes_1280x720_5994.mov (1280x720) [2.7 GB] || G2014-107_Fermi_TGF_Radar_FINAL_appletv.webm (960x540) [21.7 MB] || G2014-107_Fermi_TGF_Radar_FINAL_appletv.m4v (960x540) [66.5 MB] || 10278_Fermi_TGF_Radar_MPEG4_1280X720_2997.mp4 (1280x720) [36.8 MB] || G2014-107_Fermi_TGF_Radar_FINAL_1280x720.wmv (1280x720) [62.5 MB] || 10278_Fermi_TGF_Radar_H264_Good_1280x720_2997.mov (1280x720) [65.2 MB] || 10278_Fermi_TGF_Radar_H264_Best_1280x720_5994.mov (1280x720) [801.8 MB] || G2014-107_Fermi_TGF_Radar_FINAL_ipod_lg.m4v (640x360) [28.5 MB] || 10278_Fermi_TGF_Radar_SRT_Captions.en_US.vtt [3.7 KB] || 10278_Fermi_TGF_Radar_SRT_Captions.en_US.srt [3.7 KB] || G2014-107_Fermi_TGF_Radar_FINAL_ipod_sm.mp4 (320x240) [13.0 MB] || ", "hits": 72 }, { "id": 10171, "url": "https://svs.gsfc.nasa.gov/10171/", "result_type": "Produced Video", "release_date": "2014-11-20T14:00:00-05:00", "title": "Swift: A Decade of Game-Changing Astrophysics", "description": "Scientists participating in NASA's Swift mission discuss the spacecraft, the science, and recall their personal experiences as members of the team.Watch this video on the NASA Goddard YouTube channel.For complete transcript, click here. || Swift_Interview_Still_print.jpg (1024x576) [160.8 KB] || Swift_Interview_Still.png (2560x1440) [4.1 MB] || Swift_Interview_Still_web.jpg (180x320) [21.2 KB] || Swift_Interview_Still_thm.png (80x40) [9.1 KB] || Swift_Interview_Still_web.png (320x180) [95.3 KB] || Swift_Interview_Still_searchweb.png (180x320) [95.3 KB] || Swift_10_Interviews_MPEG4_1280X720_2997.mp4 (1280x720) [149.1 MB] || G2014-067_Swift_10_Interviews_FINAL_appletv.webmhd.webm (960x540) [98.0 MB] || G2014-067_Swift_10_Interviews_FINAL_appletv.m4v (960x540) [257.7 MB] || G2014-067_Swift_10_Interviews_FINAL_appletv_subtitles.m4v (960x540) [257.5 MB] || G2014-067_Swift_10_Interviews_FINAL_1280x720.wmv (1280x720) [292.3 MB] || Swift_10_Interviews_H264_Good_1280x720_2997.mov (1280x720) [551.2 MB] || Swift_10_Interviews_H264_640x360_2997_iPhone.m4v (640x360) [94.6 MB] || G2014-067_Swift_10_Interviews.en_US.srt [11.7 KB] || G2014-067_Swift_10_Interviews.en_US.vtt [11.7 KB] || G2014-067_Swift_10_Interviews_FINAL_ipod_lg.m4v (640x360) [102.9 MB] || G2014-067_Swift_10_Interviews_FINAL_ipod_sm.mp4 (320x240) [51.9 MB] || Swift_10_Interviews_H264_Best_1280x720_5994.mov (1280x720) [3.9 GB] || Swift_10_Interviews_ProRes_1280x720_5994.mov (1280x720) [8.7 GB] || ", "hits": 96 }, { "id": 11713, "url": "https://svs.gsfc.nasa.gov/11713/", "result_type": "Produced Video", "release_date": "2014-10-21T14:00:00-04:00", "title": "Fermi Finds Hints of Starquakes in Magnetar 'Storm'", "description": "Astronomers analyzing data acquired by NASA's Fermi Gamma-ray Space Telescope during a rapid-fire \"storm\" of high-energy blasts in 2009 have discovered underlying signals related to seismic waves rippling throughout the host neutron star.The burst storm came from SGR J1550−5418, a neutron star with a super-strong magnetic field, also known as a magnetar. Located about 15,000 light-years away in the constellation Norma, the magnetar was quiet until October 2008, when it entered a period of eruptive activity that ended in April 2009. At times, the object produced hundreds of bursts in as little as 20 minutes, and the most intense explosions emitted more total energy than the sun does in 20 years. High-energy instruments on many spacecraft, including NASA's Swift and Rossi X-ray Timing Explorer, detected hundreds of gamma-ray and X-ray blasts.An examination of 263 individual bursts detected by Fermi's Gamma-ray Burst Monitor confirms vibrations in the frequency ranges previously only seen in rare giant flares from magnetars. Astronomers suspect these are twisting oscillations of the star where the crust and the core, bound by the magnetic field, vibrate together. In addition, a single burst showed an oscillation at a frequency never seen before and which scientists still do not understand.While there are many efforts to describe the interiors of neutron stars, scientists lack enough observational detail to choose between differing models. Neutron stars reach densities far beyond the reach of laboratories and their interiors may exceed the density of an atomic nucleus by as much as 10 times. Knowing more about how bursts shake up these stars will give theorists an important new window into understanding their internal structure.Magnetar Burst with Torsional Waves || ", "hits": 155 }, { "id": 11608, "url": "https://svs.gsfc.nasa.gov/11608/", "result_type": "Produced Video", "release_date": "2014-07-31T14:00:00-04:00", "title": "Fermi Reveals Novae as a New Class of Gamma-Ray Sources", "description": "Observations of four stellar eruptions, called novae, by NASA's Fermi Gamma-ray Space Telescope firmly establish that these relatively common outbursts nearly always produce gamma rays, the most energetic form of light. A nova is a sudden, short-lived brightening of an otherwise inconspicuous star caused by a thermonuclear explosion on the surface of a white dwarf, a compact star not much larger than Earth. Novae occur because a stream of gas flowing from the star continually piles up into a layer on the white dwarf's surface. This layer eventually reaches a flash point and detonates in a runaway thermonuclear explosion. Each nova releases up to 100,000 times the annual energy output of our sun. Prior to Fermi, no one suspected these outbursts were capable of producing high-energy gamma rays. Such emission, with energies millions of times greater than visible light, usually is associated with far more powerful cosmic blasts.Fermi's Large Area Telescope (LAT) scored its first nova detection in March 2010 with an outburst of V407 Cygni. In this rare type of system, a white dwarf interacts with a red giant star more than a hundred times the size of our sun. Other members of this unusual stellar class have been observed to \"go nova\" every few decades.In 2012 and 2013, the LAT found three much more typical, or \"classical,\" novae: V339 Delphini in 2013 and V1324 Scorpii and V959 Monocerotis in 2012. The outbursts occurred in comparatively common systems where a white dwarf and a sun-like star orbit each other every few hours. Astronomers estimate that between 20 and 50 novae occur each year in our galaxy. Most go undetected, their visible light obscured by intervening dust and their gamma rays dimmed by distance. All of the gamma-ray novae found so far lie between 9,000 and 15,000 light-years away, which is relatively nearby compared to our galaxy's size.One explanation for the gamma-ray emission is that the blast creates multiple shock waves, which expand into space at slightly different speeds. Faster shocks could interact with slower ones, accelerating particles to near the speed of light. These particles ultimately could produce gamma rays. || ", "hits": 157 }, { "id": 11567, "url": "https://svs.gsfc.nasa.gov/11567/", "result_type": "Produced Video", "release_date": "2014-07-22T10:00:00-04:00", "title": "PSR J1023, A 'Transformer' Pulsar—Animations", "description": "Pulsar J1023 is a member of an exceptional binary system containing a rapidly spinning neutron star. In June 2013, the pulsar underwent a dramatic change in behavior never before observed. Its radio beacon vanished, while at the same time the system brightened significantly in gamma rays, the highest-energy form of light.The stellar system, known as AY Sextantis and located about 4,400 light-years away in the constellation Sextans, pairs a 1.7-millisecond pulsar named PSR J1023+0038 — J1023 for short — with a star containing about one-fifth the mass of the sun. The stars complete an orbit in only 4.8 hours, which places them so close together that a high-energy \"wind\" of charged particles from the pulsar is gradually evaporating its companion. What's happening, astronomers say, are the last sputtering throes of the pulsar spin-up process, where a flow of matter from the companion has, over millions of years, dramatically increased the pulsar's rotation. J1023 now spins at about 35,000 rpm, but the gas stream from the companion is no longer continuous. Researchers regard the system as a unique laboratory for understanding how millisecond pulsars form and for studying details of how accretion takes place on neutron stars. || ", "hits": 381 }, { "id": 11609, "url": "https://svs.gsfc.nasa.gov/11609/", "result_type": "Produced Video", "release_date": "2014-07-22T10:00:00-04:00", "title": "NASA's Fermi Catches a 'Transformer' Pulsar", "description": "In late June 2013, an exceptional binary system containing a rapidly spinning neutron star underwent a dramatic change in behavior never before observed. The pulsar's radio beacon vanished, while at the same time the system brightened fivefold in gamma rays, the most powerful form of light, according to measurements by NASA's Fermi Gamma-ray Space Telescope.The system, known as AY Sextantis, is located about 4,400 light-years away in the constellation Sextans. It pairs a 1.7-millisecond pulsar named PSR J1023+0038 — J1023 for short — with a star containing about one-fifth the mass of the sun. The stars complete an orbit in only 4.8 hours, which places them so close together that the pulsar will gradually evaporate its companion. To better understand J1023's spin and orbital evolution, the system was routinely monitored in radio. These observations revealed that the pulsar's radio signal had turned off and prompted the search for an associated change in its gamma-ray properties.What's happening, astronomers say, are the last sputtering throes of the pulsar spin-up process. Researchers regard the system as a unique laboratory for understanding how millisecond pulsars form and for studying details of how accretion takes place on neutron stars. In J1023, the stars are close enough that a stream of gas flows from the sun-like star toward the pulsar. The pulsar's rapid rotation and intense magnetic field are responsible for both the radio beam and its powerful pulsar wind. When the radio beam is detectable, the pulsar wind holds back the companion's gas stream, preventing it from approaching too closely. But now and then the stream surges, pushing its way closer to the pulsar and establishing an accretion disk. When gas from the disk falls to an altitude of about 50 miles (80 km), processes involved in creating the radio beam are either shut down or, more likely, obscured. Some of the gas may be accelerated outward at nearly the speed of light, forming dual particle jets firing in opposite directions. Shock waves within and along the periphery of these jets are a likely source of the bright gamma-ray emission detected by Fermi. || ", "hits": 183 }, { "id": 11563, "url": "https://svs.gsfc.nasa.gov/11563/", "result_type": "Produced Video", "release_date": "2014-06-10T10:00:00-04:00", "title": "Black Hole 'Batteries' Keep Blazars Going and Going", "description": "Astronomers studying two classes of black-hole-powered galaxies monitored by NASA's Fermi Gamma-ray Space Telescope have found evidence that they represent different sides of the same cosmic coin. By unraveling how these objects, called blazars, are distributed throughout the universe, the scientists suggest that apparently distinctive properties defining each class more likely reflect a change in the way the galaxies extract energy from their central black holes.Active galaxies possess extraordinarily luminous cores powered by black holes containing millions or even billions of times the mass of the sun. As gas falls toward these supermassive black holes, it settles into an accretion disk and heats up. Near the brink of the black hole, through processes not yet well understood, some of the gas blasts out of the disk in jets moving in opposite directions at nearly the speed of light. Blazars are the highest-energy type of active galaxy and emit light across the spectrum, from radio to gamma rays. Astronomers think blazars appear so intense because they happen to tip our way, bringing one jet nearly into our line of sight.Astronomers have identified two models in the blazar line. One, known as flat-spectrum radio quasars (FSRQs), show strong emission from an active accretion disk, much higher luminosities, smaller black hole masses and lower particle acceleration in the jets. The other, called BL Lacs, are totally dominated by the jet emission, with the jet particles reaching much higher energy and the accretion disk emission either weak or absent.Large galaxies grew out of collisions and mergers with many smaller galaxies, and this process occurs with greater frequency as we look back in time. These collisions provided plentiful gas to the growing galaxy and kept the gas stirred up so it could more easily reach the central black hole, where it piled up into a vast, hot, and bright accretion disk like those seen in \"gas-guzzling\" FSRQs. Some of the gas near the hole powers a jet while the rest falls in and gradually increases the black hole's spin.As the universe expands and the density of galaxies decreases, so do galaxy collisions and the fresh supply of gas they provide to the black hole. The accretion disk becomes depleted over time, but what's left is orbiting a faster-spinning and more massive black hole. These properties allow BL Lac objects to maintain a powerful jet even though relatively meager amounts of material are spiraling toward the black hole.In effect, the energy of accretion from the galaxy's days as an FSRQ becomes stored in the increasing rotation and mass of its black hole, which acts much like a battery. When the gas-rich accretion disk all but disappears, the blazar taps into the black hole's stored energy that, despite a lower accretion rate, allows it to continue operating its particle jet and producing high-energy emissions as a BL Lac object. || ", "hits": 123 }, { "id": 4164, "url": "https://svs.gsfc.nasa.gov/4164/", "result_type": "Visualization", "release_date": "2014-05-07T10:00:00-04:00", "title": "A Multi-Mission View of a Solar Flare: Optical to Gamma-rays", "description": "To improve our understanding of complex phenomena such as solar flares, a wide variety of tools are needed. In the case of astronomy, those tools enable us to analyze the light in many different wavelengths and many different ways.Many different instruments are observing the Sun almost continuously, both from space and on the surface of the Earth. On March 29, 2014, the Dunn Solar Telescope at Sacramento Peak, New Mexico was observing a solar active region and requested other observatories to watch as well. As a result of this coordination, the region was being observed by a large number of different instruments, ground and space-based, when it subsequently erupted with an X-class flare. This visualization presents various combinations of the datasets collected during this effort. The color text represents the dominant color of the dataset in the imagery.Solar Dynamics Observatory (SDO): HMI (617.1nm). This data represents the Sun is visible light similar to how we see it from the ground.Solar Dynamics Observatory (SDO): AIA (17.1nm). Solar ultraviolet emission, which can only be seen from space, reveals plasma flowing, and escaping, along magnetic fields.IRIS Slit-Jaw Imager: 140.0nm. This high-resolution imager also contains a slit (the dark vertical line in the center of the field) which directs the light to an ultraviolet spectrometer which is used to extract even more information about the light. The imager slews back-and-forth across the region, providing spectra over a larger area of the Sun.Hinode/X-ray Telescope: x-ray band. Indicates very hot plasma.RHESSI: 50-100 keV. High-energy gamma-ray emission. Emission from these locations represent the very highest energy photons from the flare event.Dunn Solar Telescope: G-band filter. This filter, showing much of the solar surface (photosphere) in visible light, provides a detailed view of the sunspots and convection cells. The view moves because the instrument was repointed several times during the observation.Dunn Solar Telescope: IBIS ( Hydrogen alpha, 656.3nm; Calcium 854.2 nm; Iron 630.15nm). This is the small rectangular view within the Dunn Solar Telescope G-band view. This instrument can tune the wavelength during the observation, which provides views of the solar atmosphere at different depths. || ", "hits": 36 }, { "id": 11513, "url": "https://svs.gsfc.nasa.gov/11513/", "result_type": "Produced Video", "release_date": "2014-04-03T11:00:00-04:00", "title": "Fermi Hints at Dark Matter", "description": "Using public data from NASA's Fermi Gamma-ray Space Telescope, independent scientists at the Fermi National Accelerator Laboratory, Harvard University, MIT and the University of Chicago have developed new maps showing that the galactic center produces more high-energy gamma rays than can be explained by known sources and that this excess emission is consistent with some forms of dark matter. No one knows the true nature of dark matter, but WIMPs, or Weakly Interacting Massive Particles, represent a leading class of candidates. Theorists have envisioned a wide range of WIMP types, some of which may either mutually annihilate or produce an intermediate, quickly decaying particle when they collide. Both of these pathways end with the production of gamma rays — the most energetic form of light — at energies within the detection range of Fermi's Large Area Telescope (LAT).The galactic center teems with gamma-ray sources, from interacting binary systems and isolated pulsars to supernova remnants and particles colliding with interstellar gas. It's also where astronomers expect to find the galaxy's highest density of dark matter, which only affects normal matter and radiation through its gravity. Large amounts of dark matter attract normal matter, forming a foundation upon which visible structures, like galaxies, are built. When the astronomers carefully subtract all known gamma-ray sources from LAT observations of the galactic center, a patch of leftover emission remains. This excess appears most prominent at energies between 1 and 3 billion electron volts (GeV) — roughly a billion times greater than that of visible light — and extends outward at least 5,000 light-years from the galactic center. The researchers find these features difficult to reconcile with other explanations proposed, such as undiscovered pulsars. The gamma-ray spectrum of the excess, its symmetry around the galactic center and its overall brightness, is, however, consistent with annihilations of dark matter particles in the mass range of 31 and 40 GeV. The scientists note that discoveries in other astronomical objects, such as dwarf galaxies, and experiments on Earth designed to directly detect dark matter particles will be needed to confirm this interpretation. For more information: Fermi Data Tantalize With New Clues To Dark Matter || ", "hits": 167 }, { "id": 11215, "url": "https://svs.gsfc.nasa.gov/11215/", "result_type": "Produced Video", "release_date": "2014-02-20T11:00:00-05:00", "title": "PSR J1311-3430 'Black Widow' Pulsar Animations", "description": "The essential features of black widow binaries, and their cousins, known as redbacks, are that they place a normal but very low-mass star in close proximity to a millisecond pulsar, which has disastrous consequences for the star. Black widow systems contain stars that are both physically smaller and of much lower mass than those found in redbacks.So far, astronomers have found at least 18 black widows and nine redbacks within the Milky Way, and additional members of each class have been discovered within the dense globular star clusters that orbit our galaxy. These animations show artist's impressions of one system, named PSR J1311-3430. Discovered in 2012, J1311 sets the record for the tightest orbit of its class and contains one of the heaviest neutron stars known. The pulsar's featherweight companion, which is only a dozen or so times the mass of Jupiter and just 60 percent of its size, completes an orbit every 93 minutes – less time than it takes to watch most movies. Recent studies allow a range of values extending down to 2 solar masses for the pulsar, still among the highest-known for neutron stars. || ", "hits": 268 }, { "id": 11216, "url": "https://svs.gsfc.nasa.gov/11216/", "result_type": "Produced Video", "release_date": "2014-02-20T11:00:00-05:00", "title": "Black Widow Pulsars Consume Their Mates", "description": "Black widow spiders and their Australian cousins, known as redbacks, are notorious for an unsettling tendency to kill and devour their male partners. Astronomers have noted similar behavior among two rare breeds of binary system that contain rapidly spinning neutron stars, also known as pulsars. The essential features of black widow and redback binaries are that they place a normal but very low-mass star in close proximity to a millisecond pulsar, which has disastrous consequences for the star. Black widow systems contain stars that are both physically smaller and of much lower mass than those found in redbacks.So far, astronomers have found at least 18 black widows and nine redbacks within the Milky Way, and additional members of each class have been discovered within the dense globular star clusters that orbit our galaxy. One black widow system, named PSR J1311-3430 and discovered in 2012, sets the record for the tightest orbit of its class and contains one of the heaviest neutron stars known. The pulsar's featherweight companion, which is only a dozen or so times the mass of Jupiter and just 60 percent of its size, completes an orbit every 93 minutes – less time than it takes to watch most movies. The side of the star facing the pulsar is heated to more than 21,000 degrees Fahrenheit (nearly 12,000 C), or more than twice as hot as the sun's surface. Recent studies allow a range of values extending down to 2 solar masses for the pulsar, making it one of the most massive neutron stars known. Watch the video to learn more about this system and its discovery from some of the scientists involved. || ", "hits": 89 }, { "id": 11437, "url": "https://svs.gsfc.nasa.gov/11437/", "result_type": "Produced Video", "release_date": "2014-01-06T10:00:00-05:00", "title": "First Gamma-ray Measurement of a Gravitational Lens", "description": "Astronomers using NASA's Fermi observatory have made the first gamma-ray measurements of a gravitational lens, a kind of natural telescope formed when a rare cosmic alignment allows the gravity of a massive object to bend and amplify light from a more distant source.The opportunity arose in September 2012, when Fermi's Large Area Telescope (LAT) detected a series of bright gamma-ray flares from a source known as B0218+357, located 4.35 billion light-years away in the constellation Triangulum. These powerful outbursts in a known gravitational lens provided the key to making the measurement. Astronomers classify B0218+357 as a blazar, a type of active galaxy noted for intense outbursts. At the blazar's heart is a supersized black hole with a mass millions to billions of times that of the sun. As matter spirals toward this black hole, some of it blasts outward as jets of particles traveling near the speed of light in opposite directions.Long before light from B0218+357 reaches us, it passes directly through a spiral galaxy – one much like our own – located 4.03 billion light-years away. The galaxy's gravity bends the light into different paths, so astronomers see the background blazar as dual images. But these paths aren't the same length, which means that when one image flares, there's a delay of many days before the other does.While radio and optical telescopes can resolve and monitor the individual blazar images, Fermi's LAT cannot. Instead, the Fermi team exploited the playback delay between the images. In September 2012, when the blazar's flaring activity made it the brightest gamma-ray source outside of our own galaxy, Fermi scientists took advantage of the opportunity by using a week of dedicated LAT time to hunt for delayed flares. Three episodes of flares showing playback delays of 11.46 days were found, with the strongest evidence in a sequence of flares captured during the week-long LAT observations. || ", "hits": 147 }, { "id": 11407, "url": "https://svs.gsfc.nasa.gov/11407/", "result_type": "Produced Video", "release_date": "2013-11-21T14:00:00-05:00", "title": "Briefing Materials: NASA Missions Explore Record-Setting Cosmic Blast", "description": "On Thursday, Nov. 21, 2013, NASA held a media teleconference to discuss new findings related to a brilliant gamma-ray burst detected on April 27. Audio of the teleconference is available for download here.Related feature story: www.nasa.gov/content/goddard/nasa-sees-watershed-cosmic-blast-in-unique-detail/.Audio of Sylvia Zhu interview for a Science Podcast. Briefing Speakers Introduction: Paul Hertz, NASA Astrophysics Division Director, NASA Headquarters, Washington, D.C.Charles Dermer, astrophysicist, Naval Research Laboratory, Washington, D.C.Thomas Vestrand, astrophysicist, Los Alamos National Laboratory, Los Alamos, N.M.Chryssa Kouveliotou, astrophysicist, NASA’s Marshall Space Flight Center, Huntsville, Ala. Presenter 1: Charles Dermer || ", "hits": 113 }, { "id": 11311, "url": "https://svs.gsfc.nasa.gov/11311/", "result_type": "Produced Video", "release_date": "2013-08-21T13:00:00-04:00", "title": "Highlights of Fermi's First Five Years", "description": "This compilation summarizes the wide range of science from the first five years of NASA's Fermi Gamma-ray Space Telescope. Fermi is a NASA observatory designed to reveal the high-energy universe in never-before-seen detail. Launched in 2008, Fermi continues to give astronomers a unique tool for exploring high-energy processes associated with solar flares, spinning neutron stars, outbursts from black holes, exploding stars, supernova remnants and energetic particles to gain insight into how the universe works. Fermi detects gamma rays, the most powerful form of light, with energies thousands to billions of times greater than the visible spectrum.The mission has discovered pulsars, proved that supernova remnants can accelerate particles to near the speed of light, monitored eruptions of black holes in distant galaxies, and found giant bubbles linked to the central black hole in our own galaxy. From blazars to thunderstorms, from dark matter to supernova remnants, catch the highlights of NASA Fermi’s first five years in space.View all the Fermi-related media from the last 5 years in the Fermi Gallery.For more information about Fermi, visit NASA's Fermi webpage. || ", "hits": 96 }, { "id": 11342, "url": "https://svs.gsfc.nasa.gov/11342/", "result_type": "Produced Video", "release_date": "2013-08-21T13:00:00-04:00", "title": "Fermi's Five-year View of the Gamma-ray Sky", "description": "This all-sky view shows how the sky appears at energies greater than 1 billion electron volts (GeV) according to five years of data from NASA's Fermi Gamma-ray Space Telescope. (For comparison, the energy of visible light is between 2 and 3 electron volts.) The image contains 60 months of data from Fermi's Large Area Telescope; for better angular resolution, the map shows only gamma rays converted at the front of the instrument's tracker. Brighter colors indicate brighter gamma-ray sources. The map is shown in galactic coordinates, which places the midplane of our galaxy along the center. The five-year Fermi map is available in multiple resolutions below, along with additional plots containing reference information and identifying some of the brightest sources. || ", "hits": 156 }, { "id": 11206, "url": "https://svs.gsfc.nasa.gov/11206/", "result_type": "Produced Video", "release_date": "2013-06-14T10:00:00-04:00", "title": "NASA-led Study Explains How Black Holes Shine in Hard X-rays", "description": "A new study by astronomers at NASA, Johns Hopkins University and the Rochester Institute of Technology confirms long-held suspicions about how stellar-mass black holes produce their highest-energy light. By analyzing a supercomputer simulation of gas flowing into a black hole, the team finds they can reproduce a range of important X-ray features long observed in active black holes. Jeremy Schnittman, an astrophysicist at NASA's Goddard Space Flight Center in Greenbelt, Md., led the research.Black holes are the densest objects known. Stellar black holes form when massive stars run out of fuel and collapse, crushing up to 20 times the sun's mass into compact objects less than 75 miles (120 kilometers) wide. Gas falling toward a black hole initially orbits around it and then accumulates into a flattened disk. The gas stored in this disk gradually spirals inward and becomes greatly compressed and heated as it nears the center, ultimately reaching temperatures up to 20 million degrees Fahrenheit (12 million C), or some 2,000 times hotter than the sun's surface. It glows brightly in low-energy, or soft, X-rays.For more than 40 years, however, observations show that black holes also produce considerable amounts of \"hard\" X-rays, light with energy tens to hundreds of times greater than soft X-rays. This higher-energy light implies the presence of correspondingly hotter gas, with temperatures reaching billions of degrees. The new study involves a detailed computer simulation that simultaneously tracked the fluid, electrical and magnetic properties of the gas while also taking into account Einstein's theory of relativity. Using this data, the scientists developed tools to track how X-rays were emitted, absorbed, and scattered in and around the disk. The study demonstrates for the first time a direct connection between magnetic turbulence in the disk, the formation of a billion-degree corona above and below the disk, and the production of hard X-rays around an actively \"feeding\" black hole.Watch this video on YouTube. || ", "hits": 132 }, { "id": 11260, "url": "https://svs.gsfc.nasa.gov/11260/", "result_type": "Produced Video", "release_date": "2013-05-29T13:00:00-04:00", "title": "NASA's Swift Catches an Anti-glitch from a Neutron Star", "description": "Using observations by NASA's Swift satellite, an international team of astronomers has identified an abrupt slowdown in the rotation of a neutron star. The discovery holds important clues for understanding some of the densest matter in the universe.While astronomers have witnessed hundreds of events, called glitches, associated with sudden increases in the spin of neutron stars, the sudden spin-down caught them off guard. A neutron star is the crushed core of a massive star that ran out of fuel, collapsed under its own weight, and exploded as a supernova. It's the closest thing to a black hole that astronomers can observe directly, compressing half a million times Earth's mass into a ball roughly the size of Manhattan Island. Matter within a neutron star is so dense that a teaspoonful would weigh about a billion tons on Earth. Neutron stars possess two other important traits. They spin rapidly, ranging from a few rpm to as many as 43,000, comparable to the blades of a kitchen blender, and they boast magnetic fields a trillion times stronger than Earth's. About two dozen neutron stars occasionally produce high-energy explosions that astronomers say require magnetic fields thousands of times stronger than expected. These exceptional objects, called magnetars, are routinely monitored by a McGill team led by Kaspi using Swift's X-Ray Telescope.Read the rest of the story here. || ", "hits": 276 }, { "id": 11261, "url": "https://svs.gsfc.nasa.gov/11261/", "result_type": "Produced Video", "release_date": "2013-05-03T12:00:00-04:00", "title": "NASA's Fermi, Swift See 'Shockingly Bright' Gamma-ray Burst", "description": "A record-setting blast of gamma rays from a dying star in a distant galaxy has wowed astronomers around the world. The eruption, which is classified as a gamma-ray burst, or GRB, and designated GRB 130427A, produced the highest-energy light ever detected from such an event.The GRB lasted so long that a record number of telescopes on the ground were able to catch it while space-based observations were still ongoing.Just after 3:47 a.m. EDT on Saturday, April 27, Fermi's Gamma-ray Burst Monitor (GBM) triggered on an eruption of high-energy light in the constellation Leo. The burst occurred as NASA's Swift satellite was slewing between targets, which delayed its Burst Alert Telescope's detection by less than a minute. Fermi's Large Area Telescope (LAT) recorded one gamma ray with an energy of at least 94 billion electron volts (GeV), or some 35 billion times the energy of visible light, and about three times greater than the LAT's previous record. The GeV emission from the burst lasted for hours, and it remained detectable by the LAT for the better part of a day, setting a new record for the longest gamma-ray emission from a GRB.The burst subsequently was detected in optical, infrared and radio wavelengths by ground-based observatories, based on the rapid accurate position from Swift. Astronomers quickly learned that the GRB was located about 3.6 billion light-years away, which for these events is relatively close.Gamma-ray bursts are the universe's most luminous explosions. Astronomers think most occur when massive stars run out of nuclear fuel and collapse under their own weight. As the core collapses into a black hole, jets of material shoot outward at nearly the speed of light. The jets bore all the way through the collapsing star and continue into space, where they interact with gas previously shed by the star and generate bright afterglows that fade with time. If the GRB is near enough, astronomers usually discover a supernova at the site a week or so after the outburst. This GRB is in the closest 5 percent of bursts, so ground-based observatories are monitoring its location in hopes of finding an underlying supernova. || ", "hits": 108 }, { "id": 11250, "url": "https://svs.gsfc.nasa.gov/11250/", "result_type": "Produced Video", "release_date": "2013-04-16T13:00:00-04:00", "title": "A Trio of Swift Bursts Form A New Class of GRBs", "description": "Three unusually long-lasting stellar explosions discovered by NASA's Swift satellite represent a previously unrecognized class of gamma-ray bursts (GRBs). Two international teams of astronomers studying these events conclude that they likely arose from the catastrophic death of supergiant stars hundreds of times larger than the sun. GRBs are the most luminous and mysterious explosions in the universe. The blasts emit surges of gamma rays — the most powerful form of light — as well as X-rays, and they produce afterglows that can be observed at optical and radio energies. Swift, Fermi and other spacecraft detect an average of about one GRB each day.Traditionally, astronomers have recognized two GRB types, short and long, based on the duration of the gamma-ray signal. Short bursts last two seconds or less and are thought to represent a merger of compact objects in a binary system, with the most likely suspects being neutron stars and black holes. Long GRBs may last anywhere from several seconds to several minutes, with typical durations falling between 20 and 50 seconds. These events are thought to be associated with the collapse of a star several times the sun's mass and the resulting birth of a new black hole. Both scenarios give rise to powerful jets that propel matter at nearly the speed of light in opposite directions. As they interact with matter in and around the star, the jets produce a spike of high-energy light. A detailed study of GRB 111209A, which erupted on Dec. 9, 2011, and continued to produce high-energy emission for an astonishing seven hours, making it by far the longest-duration GRB ever recorded.Another event, GRB 101225A, exploded on Christmas Day in 2010 and produced high-energy emission for at least two hours. Subsequently nicknamed the \"Christmas burst,\" the event's distance was unknown, which led two teams to arrive at radically different physical interpretations. One group concluded the blast was caused by an asteroid or comet falling onto a neutron star within our own galaxy. Another team determined that the burst was the outcome of a merger event in an exotic binary system located some 3.5 billion light-years away.Using the Gemini North Telescope in Hawaii, a team led by Andrew Levan at the University of Warwick in Coventry, England, obtained a spectrum of the faint galaxy that hosted the Christmas burst. This enabled the scientists to identify emission lines of oxygen and hydrogen and determine how much these lines were displaced to lower energies compared to their appearance in a laboratory. This difference, known to astronomers as a redshift, places the burst some 7 billion light-years away. Levan and his colleagues also examined 111209A and the more recent burst 121027A, which exploded on Oct. 27, 2012. All show similar X-ray, ultraviolet and optical emission and all arose from the central regions of compact galaxies that were actively forming stars. The astronomers conclude that all three GRBs constitute a hitherto unrecognized group of \"ultra-long\" bursts.To account for the normal class of long GRBs, astronomers envision a star similar to the size sun's size but with many times its mass. The mass must be high enough for the star to undergo an energy crisis, with its core ultimately running out of fuel and collapsing under its own weight to form a black hole. Some of the matter falling onto the nascent black hole becomes redirected into powerful jets that drill through the star, creating the gamma-ray spike, but because this burst is short-lived, the star must be comparatively small. Because ultra-long GRBs persist for periods up to 100 times greater than long GRBs, they require a stellar source of correspondingly greater physical size. Both groups suggest that the likely candidate is a supergiant, a star with about 20 times the sun's mass that still retains its deep hydrogen atmosphere, making it hundreds of times the sun's diameter.Watch this video on YouTube. || ", "hits": 228 }, { "id": 11205, "url": "https://svs.gsfc.nasa.gov/11205/", "result_type": "Produced Video", "release_date": "2013-02-27T10:00:00-05:00", "title": "Fermi Traces a Celestial Spirograph", "description": "NASA's Fermi Gamma-ray Space Telescope orbits our planet every 95 minutes, building up increasingly deeper views of the universe with every circuit. Its wide-eyed Large Area Telescope (LAT) sweeps across the entire sky every three hours, capturing the highest-energy form of light — gamma rays — from sources across the universe. These range from supermassive black holes billions of light-years away to intriguing objects in our own galaxy, such as X-ray binaries, supernova remnants and pulsars. Now a Fermi scientist has transformed LAT data of a famous pulsar into a mesmerizing movie that visually encapsulates the spacecraft's complex motion. Pulsars are neutron stars, the crushed cores of massive suns that destroyed themselves when they ran out of fuel, collapsed and exploded. The blast simultaneously shattered the star and compressed its core into a body as small as a city yet more massive than the sun. One pulsar, called Vela, shines especially bright for Fermi. It spins 11 times a second and is the brightest persistent source of gamma rays the LAT sees. The movie renders Vela's position in a fisheye perspective, where the middle of the pattern corresponds to the central and most sensitive portion of the LAT's field of view. The edge of the pattern is 90 degrees away from the center and well beyond what scientists regard as the effective limit of the LAT's vision. The movie tracks both Vela's position relative to the center of the LAT's field of view and the instrument's exposure of the pulsar during the first 51 months of Fermi's mission, from Aug. 4, 2008, to Nov. 15, 2012. The pattern Vela traces reflects numerous motions of the spacecraft. The first is Fermi's 95-minute orbit around Earth, but there's another, subtler motion related to it. The orbit itself also rotates, a phenomenon called precession. Similar to the wobble of an unsteady top, Fermi's orbital plane makes a slow circuit around Earth every 54 days. In order to capture the entire sky every two orbits, scientists deliberately nod the LAT in a repeating pattern from one orbit to the next. It first looks north on one orbit, south on the next, and then north again. Every few weeks, the LAT deviates from this pattern to concentrate on particularly interesting targets, such as eruptions on the sun, brief but brilliant gamma-ray bursts associated with the birth of stellar-mass black holes, and outbursts from supermassive black holes in distant galaxies. The Vela movie captures one other Fermi motion. The spacecraft rolls to keep the sun from shining on and warming up the LAT's radiators, which regulate its temperature by bleeding excess heat into space.Watch this video on YouTube. || ", "hits": 52 }, { "id": 11209, "url": "https://svs.gsfc.nasa.gov/11209/", "result_type": "Produced Video", "release_date": "2013-02-14T14:00:00-05:00", "title": "Fermi Proves Supernova Remnants Produce Cosmic Rays", "description": "A new study using observations from NASA's Fermi Gamma-ray Space Telescope reveals the first clear-cut evidence that the expanding debris of exploded stars produces some of the fastest-moving matter in the universe. This discovery is a major step toward meeting one of Fermi's primary mission goals.Cosmic rays are subatomic particles that move through space at nearly the speed of light. About 90 percent of them are protons, with the remainder consisting of electrons and atomic nuclei. In their journey across the galaxy, the electrically charged particles become deflected by magnetic fields. This scrambles their paths and makes it impossible to trace their origins directly.Through a variety of mechanisms, these speedy particles can lead to the emission of gamma rays, the most powerful form of light and a signal that travels to us directly from its sources.Two supernova remnants, known as IC 443 and W44, are expanding into cold, dense clouds of interstellar gas. This material emits gamma rays when struck by high-speed particles escaping the remnants.Scientists have been unable to ascertain which particle is responsible for this emission because cosmic-ray protons and electrons give rise to gamma rays with similar energies. Now, after analyzing four years of data, Fermi scientists see a gamma-ray feature from both remnants that, like a fingerprint, proves the culprits are protons.When cosmic-ray protons smash into normal protons, they produce a short-lived particle called a neutral pion. The pion quickly decays into a pair of gamma rays. This emission falls within a specific band of energies associated with the rest mass of the neutral pion, and it declines steeply toward lower energies. Detecting this low-end cutoff is clear proof that the gamma rays arise from decaying pions formed by protons accelerated within the supernova remnants.In 1949, the Fermi telescope's namesake, physicist Enrico Fermi, suggested that the highest-energy cosmic rays were accelerated in the magnetic fields of interstellar gas clouds. In the decades that followed, astronomers showed that supernova remnants were the galaxy's best candidate sites for this process.?A charged particle trapped in a supernova remnant's magnetic field moves randomly throughout it and occasionally crosses through the explosion's leading shock wave. Each round trip through the shock ramps up the particle's speed by about 1 percent. After many crossings, the particle obtains enough energy to break free and escapes into the galaxy as a newborn cosmic ray. The Fermi discovery builds on a strong hint of neutral pion decay in W44 observed by the Italian Space Agency's AGILE gamma-ray observatory and published in late 2011.Watch this video on YouTube. || ", "hits": 289 }, { "id": 11131, "url": "https://svs.gsfc.nasa.gov/11131/", "result_type": "Produced Video", "release_date": "2012-12-06T10:00:00-05:00", "title": "Fermi Improves Its Vision For Thunderstorm Gamma-ray Flashes", "description": "Thanks to improved data analysis techniques and a new operating mode, the Gamma-ray Burst Monitor (GBM) aboard NASA's Fermi Gamma-ray Space Telescope is now 10 times better at catching the brief outbursts of high-energy light mysteriously produced above thunderstorms. The outbursts, known as terrestrial gamma-ray flashes (TGFs), last only a few thousandths of a second, but their gamma rays rank among the highest-energy light that naturally occurs on Earth. The enhanced GBM discovery rate helped scientists show most TGFs also generate a strong burst of radio waves, a finding that will change how scientists study this poorly understood phenomenon.Lightning emits a broad range of very low frequency (VLF) radio waves, often heard as pop-and-crackle static when listening to AM radio. The World Wide Lightning Location Network (WWLLN), a research collaboration operated by the University of Washington in Seattle, routinely detects these radio signals and uses them to pinpoint the location of lightning discharges anywhere on the globe to within about 12 miles (20 km).Scientists have known for a long time TGFs were linked to strong VLF bursts, but they interpreted these signals as originating from lightning strokes somehow associated with the gamma-ray emission.\"Instead, we've found when a strong radio burst occurs almost simultaneously with a TGF, the radio emission is coming from the TGF itself,\" said co-author Michael Briggs, a member of the GBM team. The researchers identified much weaker radio bursts that occur up to several thousandths of a second before or after a TGF. They interpret these signals as intracloud lightning strokes related to, but not created by, the gamma-ray flash. Scientists suspect TGFs arise from the strong electric fields near the tops of thunderstorms. Under certain conditions, the field becomes strong enough that it drives a high-speed upward avalanche of electrons, which give off gamma rays when they are deflected by air molecules. \"What's new here is that the same electron avalanche likely responsible for the gamma-ray emission also produces the VLF radio bursts, and this gives us a new window into understanding this phenomenon,\" said Joseph Dwyer, a physics professor at the Florida Institute of Technology in Melbourne, Fla., and a member of the study team. Because the WWLLN radio positions are far more precise than those based on Fermi's orbit, scientists will develop a much clearer picture of where TGFs occur and perhaps which types of thunderstorms tend to produce them.Watch this video on YouTube. || ", "hits": 68 }, { "id": 11117, "url": "https://svs.gsfc.nasa.gov/11117/", "result_type": "Produced Video", "release_date": "2012-11-01T14:00:00-04:00", "title": "NASA's Fermi Explores the Early Universe", "description": "Astronomers using data from NASA's Fermi Gamma-ray Space Telescope have made the most accurate measurement of starlight in the universe and used it to establish the total amount of light from all of the stars that have ever shone, accomplishing a primary mission goal.Gamma rays are the most energetic form of light. Since Fermi's launch in 2008, its Large Area Telescope (LAT) observes the entire sky in high-energy gamma rays every three hours, creating the most detailed map of the universe ever known at these energies. The total sum of starlight in the cosmos is known to astronomers as the extragalactic background light (EBL). To gamma rays, the EBL functions as a kind of cosmic fog. Ajello and his team investigated the EBL by studying gamma rays from 150 blazars, or galaxies powered by black holes, that were strongly detected at energies greater than 3 billion electron volts (GeV), or more than a billion times the energy of visible light. As matter falls toward a galaxy's supermassive black hole, some of it is accelerated outward at almost the speed of light in jets pointed in opposite directions. When one of the jets happens to be aimed in the direction of Earth, the galaxy appears especially bright and is classified as a blazar.Gamma rays produced in blazar jets travel across billions of light-years to Earth. During their journey, the gamma rays pass through an increasing fog of visible and ultraviolet light emitted by stars that formed throughout the history of the universe. Occasionally, a gamma ray collides with starlight and transforms into a pair of particles — an electron and its antimatter counterpart, a positron. Once this occurs, the gamma ray light is lost. In effect, the process dampens the gamma-ray signal in much the same way as fog dims a distant lighthouse. From studies of nearby blazars, scientists have determined how many gamma rays should be emitted at different energies. More distant blazars show fewer gamma rays at higher energies — especially above 25 GeV — thanks to absorption by the cosmic fog. The farthest blazars are missing most of their higher-energy gamma rays.The researchers then determined the average gamma-ray attenuation across three distance ranges between 9.6 billion years ago and today. From this measurement, the scientists were able to estimate the fog's thickness. To account for the observations, the average stellar density in the cosmos is about 1.4 stars per 100 billion cubic light-years. To put this in another way, the average distance between stars in the universe is about 4,150 light-years.See the media briefing page here. || ", "hits": 117 }, { "id": 11130, "url": "https://svs.gsfc.nasa.gov/11130/", "result_type": "Produced Video", "release_date": "2012-11-01T14:00:00-04:00", "title": "Fermi Observation of Early Background Light Animation", "description": "This animation tracks several gamma rays through space and time, from their emission in the jet of a distant blazar to their arrival in Fermi's Large Area Telescope (LAT). During their journey, the number of randomly moving ultraviolet and optical photons (blue) increases as more and more stars are born in the universe. Eventually, one of the gamma rays encounters a photon of starlight and the gamma ray transforms into an electron and a positron. The remaining gamma-ray photons arrive at Fermi, interact with tungsten plates in the LAT, and produce the electrons and positrons whose paths through the detector allows astronomers to backtrack the gamma rays to their source. || ", "hits": 154 }, { "id": 11000, "url": "https://svs.gsfc.nasa.gov/11000/", "result_type": "Produced Video", "release_date": "2012-06-11T13:00:00-04:00", "title": "NASA's Fermi Detects the Highest-Energy Light from a Solar Flare", "description": "During a powerful solar blast in March, NASA's Fermi Gamma-ray Space Telescope detected the highest-energy light ever associated with an eruption on the sun. The discovery heralds Fermi's new role as a solar observatory, a powerful new tool for understanding solar outbursts during the sun's maximum period of activity.\"For most of Fermi's four years in orbit, its Large Area Telescope (LAT) saw the sun as a faint, steady gamma-ray source thanks to the impacts of high-speed particles called cosmic rays,\" said Nicola Omodei, an astrophysicist at Stanford University in California. \"Now we're beginning to see what the sun itself can do.\"A solar flare is an explosive blast of light and charged particles. The powerful March 7 flare, which earned a classification of X5.4 based on the peak intensity of its X-rays, is the strongest eruption so far observed by Fermi's LAT. The flare produced such an outpouring of gamma rays — a form of light with even greater energy than X-rays — that the sun briefly became the brightest object in the gamma-ray sky.At the flare's peak, the LAT detected gamma rays with two billion times the energy of visible light, or about 4 billion electron volts (GeV), easily setting a record for the highest-energy light ever detected during or just after a solar flare. The flux of high-energy gamma rays, defined as those with energies beyond 100 million electron volts (MeV), was 1,000 times greater than the sun's steady output. The March 7 flare also is notable for the persistence of its gamma-ray emission. Fermi's LAT detected high-energy gamma rays for about 20 hours, two and a half times longer than any event on record. Additionally, the event marks the first time a greater-than-100-MeV gamma-ray source has been localized to the sun's disk, thanks to the LAT's keen angular resolution. Flares and other eruptive solar events produce gamma rays by accelerating charged particles, which then collide with matter in the sun's atmosphere and visible surface. For instance, interactions among protons result in short-lived subatomic particles called pions, which produce high-energy gamma rays when they decay. Nuclei excited by collisions with lower-energy ions give off characteristic gamma rays as they settle down. Accelerated electrons emit gamma rays as they collide with protons and atomic nuclei.Solar eruptions are now on the rise as the sun progresses toward the peak of its roughly 11-year-long activity cycle, now expected in mid-2013. || ", "hits": 967 }, { "id": 10943, "url": "https://svs.gsfc.nasa.gov/10943/", "result_type": "Produced Video", "release_date": "2012-04-02T12:30:00-04:00", "title": "Fermi Observations of Dwarf Galaxies Provide New Insights on Dark Matter", "description": "There's more to the cosmos than meets the eye. About 80 percent of the matter in the universe is invisible to telescopes, yet its gravitational influence is manifest in the orbital speeds of stars around galaxies and in the motions of clusters of galaxies. Yet, despite decades of effort, no one knows what this \"dark matter\" really is. Many scientists think it's likely that the mystery will be solved with the discovery of new kinds of subatomic particles, types necessarily different from those composing atoms of the ordinary matter all around us. The search to detect and identify these particles is underway in experiments both around the globe and above it. Scientists working with data from NASA's Fermi Gamma-ray Space Telescope have looked for signals from some of these hypothetical particles by zeroing in on 10 small, faint galaxies that orbit our own. Although no signals have been detected, a novel analysis technique applied to two years of data from the observatory's Large Area Telescope (LAT) has essentially eliminated these particle candidates for the first time.WIMPs, or Weakly Interacting Massive Particles, represent a favored class of dark matter candidates. Some WIMPs may mutually annihilate when pairs of them interact, a process expected to produce gamma rays — the most energetic form of light — that the LAT is designed to detect. The team examined two years of LAT-detected gamma rays with energies in the range from 200 million to 100 billion electron volts (GeV) from 10 of the roughly two dozen dwarf galaxies known to orbit the Milky Way. Instead of analyzing the results for each galaxy separately, the scientists developed a statistical technique — they call it a \"joint likelihood analysis\" — that evaluates all of the galaxies at once without merging the data together. No gamma-ray signal consistent with the annihilations expected from four different types of commonly considered WIMP particles was found.For the first time, the results show that WIMP candidates within a specific range of masses and interaction rates cannot be dark matter. A paper detailing these results appeared in the Dec. 9, 2011, issue of Physical Review Letters. || ", "hits": 263 }, { "id": 20122, "url": "https://svs.gsfc.nasa.gov/20122/", "result_type": "Animation", "release_date": "2012-02-25T00:00:00-05:00", "title": "Fermi's LAT Instrument", "description": "Fermi's Large Area Telescope (LAT) detects particles produced in a physical process known as pair production that epitomizes Einstein's famous equation, E=mc2. When a gamma ray, which is pure energy (E), slams into a layer of tungsten in one of the tracking towers that compose the LAT, it creates mass (m) in the form of a pair of subatomic particles, an electron and its antimatter counterpart, a positron. Several layers of high-precision silicon detectors track the particles as they move through the instrument. The direction of the incoming gamma ray is determined by projecting the particle paths backward. The particles travel through the trackers until they reach a separate detector called a calorimeter, which absorbs and measures their energies. The LAT produces gamma-ray images of astronomical objects, while also determining the energy of each detected gamma ray. || ", "hits": 129 }, { "id": 10887, "url": "https://svs.gsfc.nasa.gov/10887/", "result_type": "Produced Video", "release_date": "2012-01-10T10:00:00-05:00", "title": "NASA's Fermi Space Telescope Explores New Energy Extremes", "description": "After more than three years in space, NASA's Fermi Gamma-ray Space Telescope is extending its view of the high-energy sky into a range that to date has been largely unexplored territory. Now, the Fermi team has presented its first \"head count\" of sources in this new realm.Fermi's Large Area Telescope (LAT) scans the entire sky every three hours, continually deepening its portrait of the sky in gamma rays, the most extreme form of light. While the energy of visible light falls between about 2 and 3 electron volts, the LAT detects gamma rays with energies ranging from 20 million electron volts (MeV) to more than 300 billion (GeV).But at higher energies, gamma rays are few and far between. Above 10 GeV, even Fermi's LAT detects only one gamma ray every four months from some sources. The LAT's predecessor, the EGRET instrument on NASA's Compton Gamma Ray Observatory, detected only 1,500 individual gamma rays in this range during its nine-year lifetime, while the LAT detected more than 150,000 in just three years.Any object producing gamma rays at these energies is undergoing extraordinary astrophysical processes. More than half of the 496 sources in the new census are active galaxies, where matter falling into a supermassive black hole powers jets that spray out particles at nearly the speed of light. || ", "hits": 64 }, { "id": 10808, "url": "https://svs.gsfc.nasa.gov/10808/", "result_type": "Produced Video", "release_date": "2011-11-30T13:00:00-05:00", "title": "The Dual Personality of the 'Christmas Burst'", "description": "The Christmas burst, also known as GRB 101225A, was discovered in the constellation Andromeda by Swift's Burst Alert Telescope at 1:38 p.m. EST on Dec. 25, 2010. Two very different scenarios successfully reproduce features of this peculiar cosmic explosion. It was either caused by novel type of supernova located billions of light-years away or an unusual collision much closer to home, within our own galaxy. Common to both scenarios is the presence of a neutron star, the crushed core that forms when a star many times the sun's mass explodes. According to one science team, the burst occurred in an exotic binary system where a neutron star orbited a normal star that had just entered its red giant phase. The outer atmosphere of the giant expanded so much that it engulfed the neutron star, which resulted in both the ejection of the giant's atmosphere and rapid tightening of the neutron star's orbit. Once the two stars became wrapped in a common envelope of gas, the neutron star may have merged with the giant's core after just five orbits, or about 18 months. The end result of the merger was the birth of a black hole and the production of oppositely directed jets of particles moving at nearly the speed of light, which made the gamma rays, followed by a weak supernova. Based on this interpretation, the event took place about 5.5 billion light-years away, and the team has detected what may be a faint galaxy at the right location.Another team supports an alternative model that involves the tidal disruption of a large comet-like object and the ensuing crash of debris onto a neutron star located only about 10,000 light-years away. Gamma-ray emission occurred when debris fell onto the neutron star. Clumps of cometary material likely made a few orbits, with different clumps following different paths before settling into a disk around the neutron star. X-ray variations detected by Swift's X-Ray Telescope that lasted several hours may have resulted from late-arriving clumps that struck the neutron star as the disk formed. The NASA release is here. || ", "hits": 82 }, { "id": 10878, "url": "https://svs.gsfc.nasa.gov/10878/", "result_type": "Produced Video", "release_date": "2011-11-28T14:00:00-05:00", "title": "Gamma rays in the Heart of Cygnus", "description": "Located in the vicinity of the second-magnitude star Gamma Cygni, the Cygnus X star-forming region was discovered as a diffuse radio source by surveys in the 1950s. Now, a study using data from NASA's Fermi Gamma-ray Space Telescope finds that the tumult of star birth and death in Cygnus X has managed to corral fast-moving particles called cosmic rays.Cosmic rays are subatomic particles — mainly protons — that move through space at nearly the speed of light. In their journey across the galaxy, the particles are deflected by magnetic fields, which scramble their paths and make it impossible to backtrack the particles to their sources. Yet when cosmic rays collide with interstellar gas, they produce gamma rays — the most energetic and penetrating form of light — that travel to us straight from the source.The Cygnus X star factory is located about 4,500 light-years away and is believed to contain enough raw material to make two million stars like our sun. Within it are many young star clusters and several sprawling groups of related O- and B-type stars, called OB associations. One, called Cygnus OB2, contains 65 O stars — the most massive, luminous and hottest type — and nearly 500 B stars. These massive stars possess intense outflows that clear out cavities in the region's gas clouds. A tangled web of shockwaves associated with this process impedes the movement of cosmic rays throughout the region. Cosmic rays striking gas nuclei or photons from starlight produce the gamma rays Fermi detects.The release on NASA.gov is here. || ", "hits": 161 }, { "id": 10867, "url": "https://svs.gsfc.nasa.gov/10867/", "result_type": "Produced Video", "release_date": "2011-11-09T12:00:00-05:00", "title": "Swift HD Beauty Shot", "description": "Animation of the Swift spacecraft. || ", "hits": 46 }, { "id": 10858, "url": "https://svs.gsfc.nasa.gov/10858/", "result_type": "Produced Video", "release_date": "2011-11-03T14:00:00-04:00", "title": "Fermi Discovers Youngest Millisecond Pulsar", "description": "An international team of scientists using NASA's Fermi Gamma-ray Space Telescope has discovered a surprisingly powerful millisecond pulsar that challenges existing theories about how these objects form. At the same time, another team has exploited improved analytical techniques to locate nine new gamma-ray pulsars in Fermi data.A pulsar, also called a neutron star, is the closest thing to a black hole astronomers can observe directly, crushing half a million times more mass than Earth into a sphere no larger than a city. This matter is so compressed that even a teaspoonful weighs as much as Mount Everest.Typically, millisecond pulsars are a billion years or more old, ages commensurate with a stellar lifetime. But in the Nov. 3 issue of Science, the Fermi team reveals a bright, energetic millisecond pulsar only 25 million years old.The object, named PSR J1823—3021A, lies within NGC 6624, a spherical assemblage of ancient stars called a globular cluster, one of about 160 similar objects that orbit our galaxy. The cluster is about 10 billion years old and lies about 27,000 light-years away toward the constellation Sagittarius.\"With this new batch of pulsars, Fermi now has detected more than 100, which is an exciting milestone when you consider that before Fermi's launch only seven of them were known to emit gamma rays,\" said Pablo Saz Parkinson, an astrophysicist at the Santa Cruz Institute for Particle Physics, University of California Santa Cruz. || ", "hits": 151 }, { "id": 10861, "url": "https://svs.gsfc.nasa.gov/10861/", "result_type": "Produced Video", "release_date": "2011-11-03T14:00:00-04:00", "title": "Fermi Pulsar Interactive Videos", "description": "These videos originally accompanied a Fermi Pulsar Interactive. That interactive is now available here. || ", "hits": 217 }, { "id": 10819, "url": "https://svs.gsfc.nasa.gov/10819/", "result_type": "Produced Video", "release_date": "2011-09-09T09:00:00-04:00", "title": "Fermi's Latest Gamma-ray Census Highlights Cosmic Mysteries", "description": "Every three hours, NASA's Fermi Gamma-ray Space Telescope scans the entire sky and deepens its portrait of the high-energy universe. Every year, the satellite's scientists reanalyze all of the data it has collected, exploiting updated analysis methods to tease out new sources. These relatively steady sources are in addition to the numerous transient events Fermi detects, such as gamma-ray bursts in the distant universe and flares from the sun.Earlier this year, the Fermi team released its second catalog of sources detected by the satellite's Large Area Telescope (LAT), producing an inventory of 1,873 objects shining with the highest-energy form of light. More than half of these sources are active galaxies whose supermassive black hole centers are causing the gamma-ray emissions. || ", "hits": 74 }, { "id": 10806, "url": "https://svs.gsfc.nasa.gov/10806/", "result_type": "Produced Video", "release_date": "2011-07-22T00:00:00-04:00", "title": "Beyond Einstein", "description": "Albert Einstein's theories rank among humanity's greatest achievements. They sparked the scientific revolution of the 20th Century. In their attempts to understand how space, time and matter are connected, Einstein and his successors made three predictions:First, that space is expanding from a Big Bang. Second, that black holes exist — these extremely dense places in the universe where space and time are tied into contorted knots and where time itself — stops. And third, that there is some kind of energy pulling the universe apart. These three predictions seemed so far-fetched, that everyone, including Einstein himself, thought they were unlikely. Incredibly, all three have turned out to be true. This is where NASA's Beyond Einstein program begins. Using advanced space-based technology to explore these three questions, NASA and its partners begin the next revolution in our understanding of the universe. NASA's Beyond Einstein program is poised to complete Einstein's legacy — and ultimately unravel the mysteries of the Universe. || ", "hits": 108 } ] }