{ "id": 40143, "url": "https://svs.gsfc.nasa.gov/gallery/gammaray-burst/", "page_type": "Gallery", "title": "Fermi: Gamma-ray Bursts and Novae", "description": "No description available.", "release_date": "2013-08-06T00:00:00-04:00", "update_date": "2024-04-22T00:00:00-04:00", "main_image": { "id": 500361, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010300/a010369/twoComponentJetStream_1280x720_web.png", "filename": "twoComponentJetStream_1280x720_web.png", "media_type": "Image", "alt_text": "As the star explodes, the narrow beam (white) of gamma rays is emitted first, followed by the wider beam (purple).", "width": 180, "height": 320, "pixels": 57600 }, "media_groups": [ { "id": 370739, "url": "https://svs.gsfc.nasa.gov/gallery/gammaray-burst/#media_group_370739", "widget": "Tile gallery", "title": "Visuals", "caption": "", "description": "", "items": [ { "id": 425214, "type": "details_page", "extra_data": null, "instance": { "id": 14522, "url": "https://svs.gsfc.nasa.gov/14522/", "page_type": "Produced Video", "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] || ", "release_date": "2024-04-16T12:00:00-04:00", "update_date": "2024-04-11T13:07:25.556484-04:00", "main_image": { "id": 1091055, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014500/a014522/Fermi_Missing_GR_Still.jpg", "filename": "Fermi_Missing_GR_Still.jpg", "media_type": "Image", "alt_text": "Even when it doesn’t detect gamma rays, NASA’s Fermi Gamma-ray Space Telescope helps astronomers learn more about the universe.\r\rCredit: NASA’s Goddard Space Flight Center\rMusic: \"Trial\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available.", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406198, "type": "details_page", "extra_data": null, "instance": { "id": 20378, "url": "https://svs.gsfc.nasa.gov/20378/", "page_type": "Animation", "title": "Long Gamma-Ray Burst", "description": "Complete animation sequence.Credit: NASA's Goddard Space Flight Center Conceptual Image Lab || GRB_Sequence_Still.jpg (3840x2160) [1.6 MB] || 20378_GRB_Sequence_1080.mp4 (1920x1080) [41.7 MB] || 20378_GRB_Sequence_4k.mp4 (3840x2160) [109.7 MB] || 20378_GRB_Sequence_ProRes_3840x2160_30.mov (3840x2160) [1.4 GB] || ", "release_date": "2023-09-19T18:00:00-04:00", "update_date": "2025-01-09T15:53:45.614396-05:00", "main_image": { "id": 855549, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020300/a020378/GRB_afterglow_4k_30fps_proRes.00150_print.jpg", "filename": "GRB_afterglow_4k_30fps_proRes.00150_print.jpg", "media_type": "Image", "alt_text": "Distant shot revealing both particle jets interacting with circumstellar dust and gas.Credit: NASA's Goddard Space Flight Center Conceptual Image Lab", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406199, "type": "details_page", "extra_data": null, "instance": { "id": 14317, "url": "https://svs.gsfc.nasa.gov/14317/", "page_type": "Produced Video", "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] || ", "release_date": "2023-03-28T13:50:00-04:00", "update_date": "2023-05-03T11:43:38.257753-04:00", "main_image": { "id": 842157, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014300/a014317/GRB_all_rings_XMM_2160_searchweb.png", "filename": "GRB_all_rings_XMM_2160_searchweb.png", "media_type": "Image", "alt_text": "XMM-Newton images recorded 20 dust rings, 19 of which are shown here in arbitrary colors. This composite merges observations made two and five days after GRB 221009A erupted. Dark stripes indicate gaps between the detectors. A detailed analysis shows that the widest ring visible here, comparable to the apparent size of a full moon, came from dust clouds located about 1,300 light-years away. The innermost ring arose from dust at a distance of 61,000 light-years on the other side of our galaxy. GRB221009A is only the seventh gamma-ray burst to display X-ray rings, and it triples the number previously seen around one.Credit: ESA/XMM-Newton/M. Rigoselli (INAF)", "width": 320, "height": 180, "pixels": 57600 } } }, { "id": 406200, "type": "details_page", "extra_data": null, "instance": { "id": 14255, "url": "https://svs.gsfc.nasa.gov/14255/", "page_type": "Produced Video", "title": "NASA’s Fermi, Swift Capture Revolutionary Gamma-Ray Burst", "description": "Watch to learn how an event called GRB 211211A rocked scientists’s understanding of gamma-ray bursts – the most powerful explosions in the cosmos.Credit: NASA’s Goddard Space Flight CenterMusic Credits: \"Finished Plate\" by Airglo and \"Binary Fission\" by Tom KaneWatch this video on the NASA Goddard YouTube channel. || Title_Card_Revolutionary_GRB.jpg (1920x1080) [1.5 MB] || Title_Card_Revolutionary_GRB_searchweb.png (320x180) [100.7 KB] || Title_Card_Revolutionary_GRB_thm.png (80x40) [7.3 KB] || NASA’s_Fermi,_Swift_Capture_Revolutionary_Gamma-Ray_Burst.mp4 (1920x1080) [171.9 MB] || NASA’s_Fermi,_Swift_Capture_Revolutionary_Gamma-Ray_Burst_ProRes.mov (1920x1080) [2.2 GB] || NASA’s_Fermi,_Swift_Capture_Revolutionary_Gamma-Ray_Burst.webm (1920x1080) [18.4 MB] || Long_GRB_Captions.en_US.srt [2.8 KB] || Long_GRB_Captions.en_US.vtt [2.8 KB] || ", "release_date": "2022-12-07T11:00:00-05:00", "update_date": "2023-09-06T10:29:03.505580-04:00", "main_image": { "id": 367935, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014200/a014255/Title_Card_Revolutionary_GRB.jpg", "filename": "Title_Card_Revolutionary_GRB.jpg", "media_type": "Image", "alt_text": "Watch to learn how an event called GRB 211211A rocked scientists’s understanding of gamma-ray bursts – the most powerful explosions in the cosmos.Credit: NASA’s Goddard Space Flight CenterMusic Credits: \"Finished Plate\" by Airglo and \"Binary Fission\" by Tom KaneWatch this video on the NASA Goddard YouTube channel.", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406201, "type": "details_page", "extra_data": null, "instance": { "id": 14227, "url": "https://svs.gsfc.nasa.gov/14227/", "page_type": "Produced Video", "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] || ", "release_date": "2022-10-13T15:30:00-04:00", "update_date": "2025-01-06T01:35:18.251897-05:00", "main_image": { "id": 368759, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014200/a014227/LAT_221009A_burst_opt_1080.gif", "filename": "LAT_221009A_burst_opt_1080.gif", "media_type": "Image", "alt_text": "This sequence constructed from Fermi Large Area Telescope data reveals the sky in gamma rays centered on the location of GRB 221009A. Each frame shows gamma rays with energies greater than 100 million electron volts (MeV), where brighter colors indicate a stronger gamma-ray signal. In total, they represent more than 10 hours of observations. The glow from the midplane of our Milky Way galaxy appears as a wide diagonal band. The image is about 20 degrees across.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 1080, "height": 1080, "pixels": 1166400 } } }, { "id": 406202, "type": "details_page", "extra_data": null, "instance": { "id": 13886, "url": "https://svs.gsfc.nasa.gov/13886/", "page_type": "Produced Video", "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] || ", "release_date": "2021-07-26T11:00:00-04:00", "update_date": "2023-05-03T13:44:03.592479-04:00", "main_image": { "id": 377998, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013800/a013886/Fizzled_GRB_Still.jpg", "filename": "Fizzled_GRB_Still.jpg", "media_type": "Image", "alt_text": "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.", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406203, "type": "details_page", "extra_data": null, "instance": { "id": 13792, "url": "https://svs.gsfc.nasa.gov/13792/", "page_type": "Produced Video", "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] || ", "release_date": "2021-01-13T12:15:00-05:00", "update_date": "2023-05-03T13:44:23.377934-04:00", "main_image": { "id": 380458, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013700/a013792/MGF_Video_Still.jpg", "filename": "MGF_Video_Still.jpg", "media_type": "Image", "alt_text": "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.", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406204, "type": "details_page", "extra_data": null, "instance": { "id": 13578, "url": "https://svs.gsfc.nasa.gov/13578/", "page_type": "Produced Video", "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] || ", "release_date": "2020-04-13T11:00:00-04:00", "update_date": "2023-05-03T13:45:04.174563-04:00", "main_image": { "id": 385704, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013500/a013578/novastill01_searchweb.png", "filename": "novastill01_searchweb.png", "media_type": "Image", "alt_text": "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.", "width": 320, "height": 180, "pixels": 57600 } } }, { "id": 406205, "type": "details_page", "extra_data": null, "instance": { "id": 13427, "url": "https://svs.gsfc.nasa.gov/13427/", "page_type": "Produced Video", "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] || ", "release_date": "2019-11-20T13:00:00-05:00", "update_date": "2023-05-03T13:45:30.338525-04:00", "main_image": { "id": 391024, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013400/a013427/GRB190114CbASimonnet_searchweb.png", "filename": "GRB190114CbASimonnet_searchweb.png", "media_type": "Image", "alt_text": "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. \r\rCredit: NASA/Fermi and Aurore Simonnet, Sonoma State University\r", "width": 320, "height": 180, "pixels": 57600 } } }, { "id": 406206, "type": "details_page", "extra_data": null, "instance": { "id": 13220, "url": "https://svs.gsfc.nasa.gov/13220/", "page_type": "Produced Video", "title": "Ten Years of High-Energy Gamma-ray Bursts", "description": "Green dots show the locations of 186 gamma-ray bursts observed by the Large Area Telescope (LAT) on NASA’s Fermi satellite during its first decade. Some noteworthy bursts are highlighted and labeled. Background: Constructed from nine years of LAT data, this map shows how the gamma-ray sky appears at energies above 10 billion electron volts. The plane of our Milky Way galaxy runs along the middle of the plot. Brighter colors indicate brighter gamma-ray sources.Credit: NASA/DOE/Fermi LAT Collaboration || Fermi_LAT_GRBs.jpg (5991x2994) [2.1 MB] || ", "release_date": "2019-06-13T11:00:00-04:00", "update_date": "2023-05-03T13:45:54.309282-04:00", "main_image": { "id": 395532, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013200/a013220/Fermi_LAT_GRBs_no_labels_print.jpg", "filename": "Fermi_LAT_GRBs_no_labels_print.jpg", "media_type": "Image", "alt_text": "An unlabeled version of the image above. \rCredit: NASA’s Goddard Space Flight Center\r", "width": 1024, "height": 511, "pixels": 523264 } } }, { "id": 406207, "type": "details_page", "extra_data": null, "instance": { "id": 12740, "url": "https://svs.gsfc.nasa.gov/12740/", "page_type": "Produced Video", "title": "Doomed Neutron Stars Create Blast of Light and Gravitational Waves", "description": "This animation captures phenomena observed over the course of nine days following the neutron star merger known as GW170817, detected on Aug. 17, 2017. They include gravitational waves (pale arcs), a near-light-speed jet that produced gamma rays (magenta), expanding debris from a kilonova that produced ultraviolet (violet), optical and infrared (blue-white to red) emission, and, once the jet directed toward us expanded into our view from Earth, X-rays (blue). Credit: NASA's Goddard Space Flight Center/CI LabMusic: \"Exploding Skies\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Neutron_Star_Merger_Still_2_new_1080.png (1920x1080) [2.5 MB] || Neutron_Star_Merger_Still_2_new_1080.jpg (1920x1080) [167.3 KB] || Neutron_Star_Merger_Still_2_new_print.jpg (1024x576) [50.4 KB] || Neutron_Star_Merger_Still_2_new.png (3840x2160) [7.7 MB] || Neutron_Star_Merger_Still_2_new.jpg (3840x2160) [1.0 MB] || Neutron_Star_Merger_Still_2_new_thm.png (80x40) [4.4 KB] || Neutron_Star_Merger_Still_2_new_searchweb.png (320x180) [51.4 KB] || 12740_NS_Merger_Update_1080.m4v (1920x1080) [50.3 MB] || 12740_NS_Merger_Update_H264_1080.mp4 (1920x1080) [96.9 MB] || 12740_NS_Merger_Update_1080p.mov (1920x1080) [101.9 MB] || NS_Merger_SRT_Captions.en_US.srt [417 bytes] || NS_Merger_SRT_Captions.en_US.vtt [399 bytes] || 12740_NS_Merger_4k_Update.webm (3840x2160) [10.0 MB] || 12740_NS_Merger_4k_Update_H264.mp4 (3840x2160) [254.9 MB] || 12740_NS_Merger_4k_Update_H264.mov (3840x2160) [516.7 MB] || 12740_NS_Merger_4k_Update_ProRes_3840x2160_5994.mov (3840x2160) [5.1 GB] || 12740_NS_Merger_4k_Update_H264.hwshow [90 bytes] || ", "release_date": "2017-10-16T10:00:00-04:00", "update_date": "2025-06-23T00:17:47.900998-04:00", "main_image": { "id": 410279, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Neutron_Star_Merger_Still_2_new_1080.jpg", "filename": "Neutron_Star_Merger_Still_2_new_1080.jpg", "media_type": "Image", "alt_text": "This animation captures phenomena observed over the course of nine days following the neutron star merger known as GW170817, detected on Aug. 17, 2017. They include gravitational waves (pale arcs), a near-light-speed jet that produced gamma rays (magenta), expanding debris from a kilonova that produced ultraviolet (violet), optical and infrared (blue-white to red) emission, and, once the jet directed toward us expanded into our view from Earth, X-rays (blue). Credit: NASA's Goddard Space Flight Center/CI LabMusic: \"Exploding Skies\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available.", "width": 1920, "height": 1080, "pixels": 2073600 } } }, { "id": 406208, "type": "details_page", "extra_data": null, "instance": { "id": 11608, "url": "https://svs.gsfc.nasa.gov/11608/", "page_type": "Produced Video", "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. || ", "release_date": "2014-07-31T14:00:00-04:00", "update_date": "2023-05-03T13:50:41.381707-04:00", "main_image": { "id": 453314, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011600/a011608/Fermi_novae_large_no_labels_searchweb.png", "filename": "Fermi_novae_large_no_labels_searchweb.png", "media_type": "Image", "alt_text": "Same as above but without labels.Credit: NASA/DOE/Fermi LAT Collaboration", "width": 320, "height": 180, "pixels": 57600 } } }, { "id": 406209, "type": "details_page", "extra_data": null, "instance": { "id": 11261, "url": "https://svs.gsfc.nasa.gov/11261/", "page_type": "Produced Video", "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. || ", "release_date": "2013-05-03T12:00:00-04:00", "update_date": "2023-05-03T13:52:11.580337-04:00", "main_image": { "id": 465852, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011200/a011261/GRB_LAT_B4_AFTER_2.jpg", "filename": "GRB_LAT_B4_AFTER_2.jpg", "media_type": "Image", "alt_text": "These maps, both centered on the north galactic pole, show how the sky looks at gamma-ray energies above 100 million electron volts (MeV). The first frame shows the sky during a three-hour interval prior to GRB 130427A. The second frame shows a three-hour interval starting 2.5 hours before the burst, and ending 30 minutes into the event. The Fermi team chose this interval to demonstrate how bright the burst was relative to the rest of the gamma-ray sky. This burst was bright enough that Fermi autonomously left its normal surveying mode to give the LAT instrument a better view, so the three-hour exposure following the burst does not cover the whole sky in the usual way. Credit: NASA/DOE/Fermi LAT Collaboration", "width": 1080, "height": 1080, "pixels": 1166400 } } }, { "id": 406210, "type": "details_page", "extra_data": null, "instance": { "id": 10819, "url": "https://svs.gsfc.nasa.gov/10819/", "page_type": "Produced Video", "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. || ", "release_date": "2011-09-09T09:00:00-04:00", "update_date": "2023-05-03T13:53:38.663881-04:00", "main_image": { "id": 483805, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010800/a010819/Blazar_Still_2.jpg", "filename": "Blazar_Still_2.jpg", "media_type": "Image", "alt_text": "Active galaxies called blazars make up the largest class of objects detected by Fermi's Large Area Telescope (LAT). Massive black holes in the hearts of these galaxies fire particle jets in our direction. Fermi team member Elizabeth Hays narrates this quick tour of blazars, which includes LAT movies showing how rapidly their emissions can change. Credit: NASA/Goddard Space Flight Center/CI LabWatch this video on the NASAexplorer YouTube channel.For complete transcript, click here.", "width": 1280, "height": 720, "pixels": 921600 } } }, { "id": 406211, "type": "details_page", "extra_data": null, "instance": { "id": 10510, "url": "https://svs.gsfc.nasa.gov/10510/", "page_type": "Produced Video", "title": "Einstein's Cosmic Speed Limit", "description": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here. || Einsteins_Cosmic_Speed_Limit_512x288_web.png (320x180) [223.5 KB] || Einsteins_Cosmic_Speed_Limit_512x288_thm.png (80x40) [16.5 KB] || Einsteins_Cosmic_Speed_Limit_Thumbnail.jpg (346x260) [107.4 KB] || Einsteins_Cosmic_Speed_Limit_AppleTV.webmhd.webm (960x540) [82.4 MB] || Einsteins_Cosmic_Speed_Limit_AppleTV.m4v (960x540) [208.4 MB] || Einsteins_Cosmic_Speed_Limit_1280x720_H264.mov (1280x720) [433.5 MB] || Einsteins_Cosmic_Speed_Limit_1280x720_ProRes.mov (1280x720) [5.2 GB] || Einsteins_Cosmic_Speed_Limit_640x480_ipod.m4v (640x360) [68.6 MB] || Einsteins_Cosmic_Speed_Limit_512x288.mpg (512x288) [38.3 MB] || Einsteins_Cosmic_Speed_Limit_320x240.mp4 (320x180) [26.5 MB] || GSFC_20091029_EinsteinsCosmicSpeedLimit.wmv (346x236) [38.4 MB] || ", "release_date": "2009-10-28T00:00:00-04:00", "update_date": "2023-05-03T13:54:31.080358-04:00", "main_image": { "id": 495569, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010510/Einsteins_Cosmic_Speed_Limit_512x288_web.png", "filename": "Einsteins_Cosmic_Speed_Limit_512x288_web.png", "media_type": "Image", "alt_text": "In its first year of operations, NASA's Fermi Gamma-ray Space Telescope has mapped the entire sky with unprecedented resolution and sensitivity in gamma-rays, the highest-energy form of light. On May 10, 2009 a pair of gamma-ray photons reached Fermi only 900 milliseconds apart after traveling for 7 billion years. Fermi's measurement gives us rare experimental evidence that space-time is smooth as Einstein predicted, and has shut the door on several approaches to gravity where space-time is foamy enough to interfere strongly with light.Watch this video on the NASAexplorer YouTube channel.For complete transcript, click here.", "width": 320, "height": 180, "pixels": 57600 } } }, { "id": 406212, "type": "details_page", "extra_data": null, "instance": { "id": 10887, "url": "https://svs.gsfc.nasa.gov/10887/", "page_type": "Produced Video", "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. || ", "release_date": "2012-01-10T10:00:00-05:00", "update_date": "2023-05-03T13:53:20.645444-04:00", "main_image": { "id": 480106, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010800/a010887/Fermi-3-year_web.png", "filename": "Fermi-3-year_web.png", "media_type": "Image", "alt_text": "Fermi's view of the gamma-ray sky continually improves. This image of the entire sky includes three years of observations by Fermi's Large Area Telescope (LAT). It shows how the sky appears at energies greater than 1 billion electron volts (1 GeV). Brighter colors indicate brighter gamma-ray sources. A diffuse glow fills the sky and is brightest along the plane of our galaxy (middle). Discrete gamma-ray sources include pulsars and supernova remnants within our galaxy as well as distant galaxies powered by supermassive black holes. Credit: NASA/DOE/Fermi LAT Collaboration", "width": 320, "height": 183, "pixels": 58560 } } }, { "id": 406213, "type": "details_page", "extra_data": null, "instance": { "id": 10508, "url": "https://svs.gsfc.nasa.gov/10508/", "page_type": "Produced Video", "title": "Fermi All-Sky First Year Progress", "description": "This view of the gamma-ray sky constructed from one year of Fermi LAT observations is the best view of the extreme universe to date. The map shows the rate at which the LAT detects gamma rays with energies above 300 million electron volts — about 120 million times the energy of visible light — from different sky directions. Brighter colors equal higher rates. || ", "release_date": "2009-10-28T01:45:00-04:00", "update_date": "2023-05-03T13:54:30.903017-04:00", "main_image": { "id": 495519, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010508/NEW_Fermi_All_Sky_Dissolve_512x288.00452_print.jpg", "filename": "NEW_Fermi_All_Sky_Dissolve_512x288.00452_print.jpg", "media_type": "Image", "alt_text": "Sequence of dissolves showing the improvement in the Fermi all-sky map, from 1 week to 1 year.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406214, "type": "details_page", "extra_data": null, "instance": { "id": 10344, "url": "https://svs.gsfc.nasa.gov/10344/", "page_type": "Produced Video", "title": "Fermi LAT movie of Gamma-ray Burst (GRB) 080916C", "description": "This movie compresses about 8 minutes of Fermi LAT observations of GRB 080916C into 6 seconds. Colored dots represent gamma rays of different energies. Visible light has energy between about 2 and 3 electron volts (eV). The blue dots represent lower-energy gamma rays (less than 100 million eV); green, moderate energies (100 million to 1 billion eV); and red, the highest energies (more than 1 billion eV). || ", "release_date": "2009-02-19T14:00:00-05:00", "update_date": "2023-05-03T13:54:54.478887-04:00", "main_image": { "id": 500381, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010300/a010344/GRB080916C_LAT_120000082_print.jpg", "filename": "GRB080916C_LAT_120000082_print.jpg", "media_type": "Image", "alt_text": "This movie shows Fermi Large Area Telescope observations of GRB 080916C. About 8 minutes of data are compressed into 6 seconds. Colored dots represent gamma rays of different energies. The blue dots represent lower-energy gamma rays; green, moderate energies; and red, the highest energies.\rCredit: NASA/DOE/Fermi LAT Collaboration\r", "width": 1024, "height": 1024, "pixels": 1048576 } } }, { "id": 406215, "type": "details_page", "extra_data": null, "instance": { "id": 10369, "url": "https://svs.gsfc.nasa.gov/10369/", "page_type": "Produced Video", "title": "Naked-Eye Gamma-ray Burst Model for GRB 080319B", "description": "Gamma-ray bursts that are longer than two seconds are caused by the detonation of a rapidly rotating massive star at the end of its life on the main sequence. Jets of particles and gamma radiation are emitted in opposite directions from the stellar core as the star collapses. In this model, a narrow beam of gamma rays is emitted, followed by a wider beam of gamma rays. The narrow beam for GRB 080319B was aimed almost precisely at the Earth, which made it the brightest gamma-ray burst observed to date by NASA's Swift satellite. || ", "release_date": "2009-01-15T00:00:00-05:00", "update_date": "2023-05-03T13:54:58.841383-04:00", "main_image": { "id": 500363, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010300/a010369/twoComponentJetStream_1280x720.00577_print.jpg", "filename": "twoComponentJetStream_1280x720.00577_print.jpg", "media_type": "Image", "alt_text": "As the star explodes, the narrow beam (white) of gamma rays is emitted first, followed by the wider beam (purple).", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406216, "type": "details_page", "extra_data": null, "instance": { "id": 10531, "url": "https://svs.gsfc.nasa.gov/10531/", "page_type": "Produced Video", "title": "Fermi telescope detects gamma-rays from Cygnus X-3", "description": "In Cygnus X-3, a hot, massive star is paired with a compact object — either a neutron star or a black hole — that blasts twin radio-emitting jets of matter into space at more than half the speed of light. Astronomers call these systems microquasars. Their properties — strong emission across a broad range of wavelengths, rapid brightness changes, and radio jets — resemble miniature versions of distant galaxies (called quasars and blazars) whose emissions are thought to be powered by enormous black holes. Cygnus X-3, first detected in 1966 as among the sky's strongest X-ray sources, was also one of the earliest claimed gamma-ray sources. Efforts to confirm those observations helped spur the development of improved gamma-ray detectors, a legacy culminating in the Large Area Telescope (LAT) aboard NASA's Fermi Gamma-ray Space Telescope. || ", "release_date": "2009-11-26T12:59:00-05:00", "update_date": "2023-05-03T13:54:28.132629-04:00", "main_image": { "id": 495204, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010531/Cyg0060.00002_print.jpg", "filename": "Cyg0060.00002_print.jpg", "media_type": "Image", "alt_text": "Fermi telescope detects gamma-rays from Cygnus X-3", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406217, "type": "details_page", "extra_data": null, "instance": { "id": 20184, "url": "https://svs.gsfc.nasa.gov/20184/", "page_type": "Animation", "title": "Fermi Sees a Nova", "description": "NASA's Fermi Gamma-ray Space Telescope has detected gamma-rays from a nova for the first time. The finding stunned observers and theorists alike because it overturns a long-standing notion that novae explosions lack the power for such high-energy emissions. In March, Fermi's Large Area Telescope (LAT) detected gamma rays — the most energetic form of light - from the nova for 15 days. Scientists believe that the emission arose as a million-mile-per-hour shock wave raced from the site of the explosion. A nova is a sudden, short-lived brightening of an otherwise inconspicuous star. The outburst occurs when a white dwarf in a binary system erupts in an enormous thermonuclear explosion. \"In human terms, this was an immensely powerful eruption, equivalent to about 1,000 times the energy emitted by the sun every year,\" said Elizabeth Hays, a Fermi deputy project scientist at NASA's Goddard Space Flight Center in Greenbelt, Md. \"But compared to other cosmic events Fermi sees, it was quite modest. We're amazed that Fermi detected it so strongly.\" More information here. || ", "release_date": "2010-08-12T00:00:00-04:00", "update_date": "2023-05-03T13:54:07.288606-04:00", "main_image": { "id": 490806, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020100/a020184/NovaCyg093500952_print.jpg", "filename": "NovaCyg093500952_print.jpg", "media_type": "Image", "alt_text": "Watch V407 Cyg go nova! In this animation, gamma rays (magenta) arise when accelerated particles in the explosion's shock wave crash into the red giant's stellar wind.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406218, "type": "details_page", "extra_data": null, "instance": { "id": 10489, "url": "https://svs.gsfc.nasa.gov/10489/", "page_type": "Produced Video", "title": "Gamma-ray Burst Photon Delay as Expected by Quantum Gravity", "description": "In this illustration, one photon (purple) carries a million times the energy of another (yellow). Some theorists predict travel delays for higher-energy photons, which interact more strongly with the proposed frothy nature of space-time. Yet Fermi data on two photons from a gamma-ray burst fail to show this effect, eliminating some approaches to a new theory of gravity. || ", "release_date": "2009-10-28T01:45:00-04:00", "update_date": "2023-05-03T13:54:30.407152-04:00", "main_image": { "id": 495475, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010400/a010489/Quantum_Gravity_Photons_Race_512x288.00252_print.jpg", "filename": "Quantum_Gravity_Photons_Race_512x288.00252_print.jpg", "media_type": "Image", "alt_text": "Animation showing how the photons may have acted if the structure of space-time was foamy. However, Fermi data has shown that that effect does not exist.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406219, "type": "details_page", "extra_data": null, "instance": { "id": 10543, "url": "https://svs.gsfc.nasa.gov/10543/", "page_type": "Produced Video", "title": "Neutron Star Merge", "description": "Binary systems containing neutron stars are born when the cores of two orbiting stars collapse in supernova explosions. Neutron stars pack the mass of our sun into the size of a city. They are so dense and packed so tightly that the boundaries atoms nuclei disappear. In such systems, Einstein's theory of general relativity predicts that neutron stars emit gravitational radiation, ripples of space-time. This causes the orbits to shrink and gradually brings the neutron stars closer together. Shown here is such a system after about 1 billion years, when two equal-mass neutron whirl around each other at 60,000 times a minute. The stars merge in a few milliseconds, sending out a burst of gravitational waves and a brief, intense gamma-ray burst. || ", "release_date": "2010-01-26T00:00:00-05:00", "update_date": "2023-05-03T13:54:23.191409-04:00", "main_image": { "id": 494494, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a010500/a010543/Merge_Horizontal.00038_print.jpg", "filename": "Merge_Horizontal.00038_print.jpg", "media_type": "Image", "alt_text": "This animation shows the merger of two neutron stars from a horizontal perspective. Theory predicts that these kinds of collisions would not produce a long afterglow because there isn't much \"fuel\" — dust and gas — from the objects and in the region to sustain an afterglow", "width": 1024, "height": 691, "pixels": 707584 } } }, { "id": 406220, "type": "details_page", "extra_data": null, "instance": { "id": 20113, "url": "https://svs.gsfc.nasa.gov/20113/", "page_type": "Animation", "title": "Gamma Ray Creation", "description": "Gamma rays are the highest-energy forms of light in the electromagnetic spectrum and they can have over a billion times the energy of the type of light visible to the human eye. Gamma rays can be created in several different ways: a high-energy particle can collide with another particle, a particle can collide and annihilate with its anti-particle, an element can undergo radioactive decay, or a charged particle can be accelerated. In this animation, we see a high-energy photon collide with a free electron, which causes the creation of a gamma-ray. || ", "release_date": "2007-09-07T00:00:00-04:00", "update_date": "2023-05-03T13:55:35.783777-04:00", "main_image": { "id": 507611, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020100/a020113/electronsphot49300493_print.jpg", "filename": "electronsphot49300493_print.jpg", "media_type": "Image", "alt_text": "This animation shows a high-energy photon (blue coil) colliding with a free electron (red ball), which causes the release of a gamma-ray (purple flash). ", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406221, "type": "details_page", "extra_data": null, "instance": { "id": 20139, "url": "https://svs.gsfc.nasa.gov/20139/", "page_type": "Animation", "title": "Gamma Ray Burst", "description": "This animation was used to illustrate a gamma ray burst that NASA's SWIFT might see. || Gamma Ray Burst || GRBHD039100377_print.jpg (1024x576) [43.9 KB] || GRBHD0391_web.png (320x180) [267.8 KB] || GRBHD0391_thm.png (80x40) [15.0 KB] || 1280x720_16x9_60p (1280x720) [32.0 KB] || grb_hd_720p.m2v (1280x720) [20.5 MB] || grb_hd_720p.webmhd.webm (960x540) [2.0 MB] || a010245_grb_hd_720p.mp4 (640x360) [1.6 MB] || grb_hd_512x288.m1v (512x288) [2.9 MB] || ", "release_date": "2008-05-22T00:00:00-04:00", "update_date": "2023-05-03T13:55:22.253561-04:00", "main_image": { "id": 505298, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020100/a020139/GRBHD039100377_print.jpg", "filename": "GRBHD039100377_print.jpg", "media_type": "Image", "alt_text": "Gamma Ray Burst", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406222, "type": "details_page", "extra_data": null, "instance": { "id": 11915, "url": "https://svs.gsfc.nasa.gov/11915/", "page_type": "Produced Video", "title": "Big Flare", "description": "NASA's Fermi satellite sees record flare from a black hole in a galaxy 5 billion light-years away. || cfinal-1024.jpg (1024x576) [159.5 KB] || cfinal-1920.jpg (1920x1080) [381.4 KB] || cfinal-1280.jpg (1280x720) [223.5 KB] || cfinal-1024_print.jpg (1024x576) [145.9 KB] || cfinal-1024_searchweb.png (320x180) [60.1 KB] || cfinal-1024_thm.png (80x40) [20.0 KB] || ", "release_date": "2015-07-21T11:00:00-04:00", "update_date": "2023-05-03T13:49:34.010188-04:00", "main_image": { "id": 441660, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a011900/a011915/cfinal-1024_print.jpg", "filename": "cfinal-1024_print.jpg", "media_type": "Image", "alt_text": "NASA's Fermi satellite sees record flare from a black hole in a galaxy 5 billion light-years away.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406223, "type": "details_page", "extra_data": null, "instance": { "id": 12121, "url": "https://svs.gsfc.nasa.gov/12121/", "page_type": "Produced Video", "title": "Gamma-ray Vision", "description": "NASA’s Fermi mission provides the best view of the high-energy gamma-ray sky yet seen. || c-1920.jpg (1920x1080) [236.3 KB] || c-1280.jpg (1280x720) [143.9 KB] || c-1024.jpg (1024x576) [116.8 KB] || c-1024_print.jpg (1024x576) [125.8 KB] || c-1024_searchweb.png (320x180) [76.2 KB] || c-1024_web.png (320x180) [76.2 KB] || c-1024_thm.png (80x40) [20.3 KB] || ", "release_date": "2016-01-12T11:00:00-05:00", "update_date": "2023-05-03T13:48:58.888485-04:00", "main_image": { "id": 436196, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012100/a012121/c-1024_print.jpg", "filename": "c-1024_print.jpg", "media_type": "Image", "alt_text": "NASA’s Fermi mission provides the best view of the high-energy gamma-ray sky yet seen.", "width": 1024, "height": 576, "pixels": 589824 } } }, { "id": 406224, "type": "details_page", "extra_data": null, "instance": { "id": 11545, "url": "https://svs.gsfc.nasa.gov/11545/", "page_type": "Produced Video", "title": "The Gamma-ray Sky", "description": "Gamma rays are the most powerful form of light in the universe. In the darkness of space, these luminous rays, which are invisible to humans but detectable by spacecraft, act as celestial beacons that alert us to some of the most extreme events and objects in the cosmos. For instance, when dying stars explode as supernovae, they emit gamma rays; so do particles being sucked into supermassive black holes; as do pulsars, the rapidly rotating stars that are as massive as our sun but only about the size of Manhattan. Since 2008, NASA’s Fermi spacecraft has observed gamma rays in the Milky Way and beyond. Plotted on a map, the locations of different sources appear as bright spots in the night sky. 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