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    "results": [
        {
            "id": 14968,
            "url": "https://svs.gsfc.nasa.gov/14968/",
            "result_type": "Produced Video",
            "release_date": "2026-03-25T12:00:00-04:00",
            "title": "XRISM Clocks Hot Wind of Galaxy M82",
            "description": "The Resolve instrument aboard the XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft captured data revealing the velocity of the hot wind at the center of starburst galaxy M82. The energy range of iron emission lines show that the gas moves around 2 million miles (about 3 million kilometers) per hour. Inset: XRISM Xtend instrument’s image of M82.Credit: NASA’s Goddard Space Flight Center, JAXA/NASA, XRISM Collaboration et al. 2026Alt text: Spectrum and image of galaxy M82Image description: This image is labeled, “XRISM Resolve Measures the Hot Wind of Starburst Galaxy M82.” It shows a graph where the bottom is labeled, “X-ray energy (keV),” with a range from 2 to 9. The left side is labeled “X-ray brightness.” A squiggly white line starts near the bottom of the left side. Several peaks are labeled, including silicon, sulfur, argon, and calcium. Four peaks are identified as iron. In the upper right corner, a small inset shows an image that looks like a purple pansy with a yellow center. || v3_XRISM_Resolve_M82.jpg (4412x2993) [2.6 MB] || v3_XRISM_Resolve_M82_searchweb.png (320x180) [46.6 KB] || v3_XRISM_Resolve_M82_thm.png (80x40) [4.6 KB] || ",
            "hits": 1179
        },
        {
            "id": 14933,
            "url": "https://svs.gsfc.nasa.gov/14933/",
            "result_type": "Produced Video",
            "release_date": "2025-12-04T09:00:00-05:00",
            "title": "XRISM Finds Elemental Bounty in Supernova Remnant",
            "description": "Observations of the Cassiopeia A supernova remnant by the Resolve instrument aboard the NASA-JAXA XRISM (X-ray Imaging and Spectroscopy Mission) spacecraft revealed strong evidence for potassium (green squares) in the southeast and northern parts of the remnant. Grids superposed on a multiwavelength image of the remnant represent the fields of view of two Resolve measurements made in December 2023. Each square represents one pixel of Resolve’s detector. Weaker evidence of potassium (yellow squares) in the west suggests that the original star may have had underlying asymmetries before it exploded. Credit: NASA’s Goddard Space Flight Center; X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScI; IR: NASA/ESA/CSA/STScI/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. ArcandAlt text: The Cassiopeia A supernova remnant with the XRISM Resolve fields of viewImage description: Supernova remnant Cassiopeia A appears as a large circular object outlined by electric blue filaments, set against a black background. Strings of vibrant colors weave throughout, with blue representing Chandra data, red, green, and blue representing Webb data, and Hubble data showing a multitude of stars that dot the view. Two nearly square grids are laid on top of the remnant slightly overlapping. The upper grid has six squares filled yellow, representing weaker evidence for potassium. In the opposite corner of that grid, five squares are filled green, representing a positive potassium detection. The lower grid has six boxes filled green in a wide M-like shape. The image is labeled “North” at the top center, “West” on the right, and “Southeast” to the left. || cas_a_with_resolve_1.png (800x645) [96.7 KB] || cas_a_with_resolve_1_print.jpg (1024x825) [125.5 KB] || cas_a_with_resolve_1_searchweb.png (320x180) [120.5 KB] || cas_a_with_resolve_1_web.png (320x258) [161.2 KB] || cas_a_with_resolve_1_thm.png (80x40) [7.6 KB] || ",
            "hits": 307
        },
        {
            "id": 31303,
            "url": "https://svs.gsfc.nasa.gov/31303/",
            "result_type": "Hyperwall Visual",
            "release_date": "2024-08-06T00:00:00-04:00",
            "title": "25 Images for Chandra's 25th: 25 Images to Celebrate!",
            "description": "25 images from 25 years, still image || 25th-chandra-hw_print.jpg (1024x576) [248.2 KB] || 25th-chandra-hw.png (5760x3240) [16.0 MB] || 25th-chandra-hw_searchweb.png (320x180) [92.1 KB] || 25th-chandra-hw_thm.png (80x40) [12.7 KB] || 25-images-to-celebrate-chandras-25th.hwshow [290 bytes] || ",
            "hits": 88
        },
        {
            "id": 31304,
            "url": "https://svs.gsfc.nasa.gov/31304/",
            "result_type": "Hyperwall Visual",
            "release_date": "2024-08-06T00:00:00-04:00",
            "title": "Take a Cosmic Road Trip this Summer with Chandra and Webb",
            "description": "Images combining data from NASA’s Chandra and Webb telescopes, of a cloud complex, a region of star formation, a spiral galaxy, and a galaxy cluster. || chandrawebb3-hw_print.jpg (1024x576) [176.0 KB] || chandrawebb3-hw_searchweb.png (320x180) [65.0 KB] || chandrawebb3-hw_thm.png (80x40) [6.0 KB] || chandrawebb3-hw.tif (5760x3240) [53.4 MB] || take-a-cosmic-road-trip-this-summer-with-chandra-and-webb.hwshow [311 bytes] || ",
            "hits": 85
        },
        {
            "id": 31296,
            "url": "https://svs.gsfc.nasa.gov/31296/",
            "result_type": "Hyperwall Visual",
            "release_date": "2024-06-21T00:00:00-04:00",
            "title": "Coming in Hot — NASA’s Chandra Checks Habitability of Exoplanets",
            "description": "Credits:Movie: Cal Poly Pomona/B. Binder; Illustration: NASA/CXC/M.Weiss || chandra-exoplanets.00001_print.jpg (1024x576) [195.6 KB] || chandra-exoplanets.00001_searchweb.png (320x180) [78.4 KB] || chandra-exoplanets.00001_thm.png (80x40) [5.7 KB] || chandra-exoplanets.mp4 (1280x720) [63.9 MB] || chandra-exoplanets.webm (1280x720) [7.0 MB] || coming-in-hot-nasas-chandra-checks-habitability-of-exoplanets.hwshow [319 bytes] || ",
            "hits": 168
        },
        {
            "id": 31288,
            "url": "https://svs.gsfc.nasa.gov/31288/",
            "result_type": "Hyperwall Visual",
            "release_date": "2024-06-13T00:00:00-04:00",
            "title": "Webb, Chandra, Hubble, and Spitzer Together Explore Cassiopeia A",
            "description": "For the first time astronomers have combined data from NASA’s Chandra X-ray Observatory and James Webb Space Telescope to study the well-known supernova remnant Cassiopeia A (Cas A). This work has helped explain an unusual structure in the debris from the destroyed star called the “Green Monster”, first discovered in Webb data in April 2023. The research has also uncovered new details about the explosion that created Cas A about 340 years ago, from Earth’s perspective.A new composite image contains X-rays from Chandra (blue), infrared data from Webb (red, green, blue), and optical data from Hubble (red and white). The outer parts of the image also include infrared data from NASA’s Spitzer Space Telescope (red, green and blue). The outline of the Green Monster can be seen by mousing over the image in the original feature, located here: chandra.cfa.harvard.edu/photo/2024/casa/.The Chandra data reveals hot gas, mostly from supernova debris from the destroyed star, including elements like silicon and iron. In the outer parts of Cas A the expanding blast wave is striking surrounding gas that was ejected by the star before the explosion. The X-rays are produced by energetic electrons spiraling around magnetic field lines in the blast wave. These electrons light up as thin arcs in the outer regions of Cas A, and in parts of the interior. Webb highlights infrared emission from dust that is warmed up because it is embedded in the hot gas seen by Chandra, and from much cooler supernova debris. The Hubble data shows stars in the field.Detailed analysis by the researchers found that filaments in the outer part of Cas A, from the blast wave, closely matched the X-ray properties of the Green Monster, including less iron and silicon than in the supernova debris. This interpretation is apparent from the color Chandra image, which shows that the colors inside the Green Monster’s outline best match with the colors of the blast wave rather than the debris with iron and silicon. The authors conclude that the Green Monster was created by a blast wave from the exploded star slamming into material surrounding it, supporting earlier suggestions from the Webb data alone.The debris from the explosion is seen by Chandra because it is heated to tens of millions of degrees by shock waves, akin to sonic booms from a supersonic plane. Webb can see some material that has not been affected by shock waves, what can be called “pristine” debris.Read more here: chandra.cfa.harvard.edu/photo/2024/casa/. || 53453268481_e80cfca2d4_o.jpg (4200x3386) [7.1 MB] || 53453268481_e80cfca2d4_o_searchweb.png (320x180) [121.1 KB] || 53453268481_e80cfca2d4_o_thm.png (80x40) [15.9 KB] || webb-chandra-hubble-and-spitzer-all-explore-cassiopeia-a-composite-all-4.hwshow || ",
            "hits": 364
        },
        {
            "id": 31286,
            "url": "https://svs.gsfc.nasa.gov/31286/",
            "result_type": "Hyperwall Visual",
            "release_date": "2024-05-28T00:00:00-04:00",
            "title": "Webb Space Telescope Studies the Pillars of Creation",
            "description": "Webb MIRI ImageNASA’s James Webb Space Telescope’s mid-infrared view of the Pillars of Creation strikes a chilling tone. Thousands of stars that exist in this region disappear – and seemingly endless layers of gas and dust become the centerpiece.The detection of dust by Webb’s Mid-Infrared Instrument (MIRI) is extremely important – dust is a major ingredient for star formation. Many stars are actively forming in these dense blue-gray pillars. When knots of gas and dust with sufficient mass form in these regions, they begin to collapse under their own gravitational attraction, slowly heat up – and eventually form new stars.Although the stars appear missing, they aren’t. Stars typically do not emit much mid-infrared light. Instead, they are easiest to detect in ultraviolet, visible, and near-infrared light. In this MIRI view, two types of stars can be identified. The stars at the end of the thick, dusty pillars have recently eroded the material surrounding them. They show up in red because their atmospheres are still enshrouded in cloaks of dust. In contrast, blue tones indicate stars that are older and have shed most of their gas and dust.Mid-infrared light also details dense regions of gas and dust. The red region toward the top, which forms a delicate V shape, is where the dust is both diffuse and cooler. And although it may seem like the scene clears toward the bottom left of this view, the darkest gray areas are where densest and coolest regions of dust lie. Notice that there are many fewer stars and no background galaxies popping into view.Webb’s mid-infrared data will help researchers determine exactly how much dust is in this region – and what it’s made of. These details will make models of the Pillars of Creation far more precise. Over time, we will begin to more clearly understand how stars form and burst out of these dusty clouds over millions of years. || STScI-01GFRYYRTCTMX197BY86MBFCR9-pillars.png (1987x1817) [4.1 MB] || STScI-01GFRYYRTCTMX197BY86MBFCR9-pillars-hwres_print.jpg (1024x576) [125.2 KB] || STScI-01GFRYYRTCTMX197BY86MBFCR9-pillars-hwres.png (3840x2160) [4.3 MB] || STScI-01GFRYYRTCTMX197BY86MBFCR9-pillars-hwres_searchweb.png (320x180) [65.3 KB] || STScI-01GFRYYRTCTMX197BY86MBFCR9-pillars-hwres_thm.png (80x40) [7.3 KB] || webb-space-telescope-studies-the-pillars-of-creation.hwshow [368 bytes] || ",
            "hits": 391
        },
        {
            "id": 14498,
            "url": "https://svs.gsfc.nasa.gov/14498/",
            "result_type": "Produced Video",
            "release_date": "2024-01-11T11:05:00-05:00",
            "title": "Finding A New Galactic 'Fossil'",
            "description": "Some 5 million years ago, a black hole eruption in the galaxy NGC 4945 set off a star-formation frenzy and shot a vast cloud of gas into intergalactic space. Watch and learn how two X-ray telescopes revealed the story.Music Credits: Universal Production Music\"Planetary Horizons\" by Jia Lee\"Eyes Peeled\" by Bard\"Sprinkle of Mischief\" by Ash and HaroldWatch this video on the NASA Goddard YouTube channel.Credit: NASA’s Goddard Space Flight Center",
            "hits": 124
        },
        {
            "id": 13239,
            "url": "https://svs.gsfc.nasa.gov/13239/",
            "result_type": "Produced Video",
            "release_date": "2019-09-24T09:00:00-04:00",
            "title": "Zoom In on Galaxy M87",
            "description": "This movie zooms into galaxy M87 using real visible light, X-ray and radio pictures of the galaxy, its jet of high-speed particles, and the shadow of its central black hole. || ",
            "hits": 170
        },
        {
            "id": 12740,
            "url": "https://svs.gsfc.nasa.gov/12740/",
            "result_type": "Produced Video",
            "release_date": "2017-10-16T10:00:00-04:00",
            "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] || ",
            "hits": 608
        },
        {
            "id": 12621,
            "url": "https://svs.gsfc.nasa.gov/12621/",
            "result_type": "Produced Video",
            "release_date": "2017-05-25T13:00:00-04:00",
            "title": "Star Gives Birth to Possible Black Hole in Hubble and Spitzer Images",
            "description": "Music credit: \"High Heelz\" by Donn Wilkerson [BMI] and Lance Sumner [BMI]; Killer Tracks BMI; Killer Tracks Production MusicWatch this video on the NASA Goddard YouTube channel. || Hubble_black_hole_birth_thumbnail.png (1920x1080) [3.4 MB] || Hubble_black_hole_birth_thumbnail_print.jpg (1024x576) [163.2 KB] || Hubble_black_hole_birth_thumbnail_searchweb.png (320x180) [126.7 KB] || Hubble_black_hole_birth_thumbnail_thm.png (80x40) [7.9 KB] || Hubble_black_hole_birth_H264.mp4 (1920x1080) [228.3 MB] || Hubble_black_hole_birth_H264.webm (1920x1080) [26.8 MB] || Hubble_black_hole_birth_APR422.mov (1920x1080) [5.8 GB] || Hubble_black_hole_birth.en_US.srt [4.7 KB] || Hubble_black_hole_birth.en_US.vtt [4.7 KB] || ",
            "hits": 93
        },
        {
            "id": 12587,
            "url": "https://svs.gsfc.nasa.gov/12587/",
            "result_type": "Produced Video",
            "release_date": "2017-05-02T13:00:00-04:00",
            "title": "Gigantic Wave Discovered in Perseus Galaxy Cluster",
            "description": "A wave spanning 200,000 light-years is rolling through the Perseus galaxy cluster, according to observations from NASA's Chandra X-ray Observatory coupled with a computer simulation. The simulation shows the gravitational disturbance resulting from the distant flyby of a galaxy cluster about a tenth the mass of the Perseus cluster. The event causes cooler gas at the heart of the Perseus cluster to form a vast expanding spiral, which ultimately forms giant waves lasting hundreds of millions of years at its periphery. Merger events like this are thought to occur as often as every three to four billion years in clusters like Perseus.Credit: NASA's Goddard Space Flight CenterMusic: \"The Undiscovered\" from Killer TracksWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || Perseus_Simulation_Final_Frame_print.jpg (1024x575) [47.6 KB] || Perseus_Simulation_Final_Frame.png (7342x4129) [4.0 MB] || Perseus_Simulation_Final_Frame_thm.png (80x40) [3.3 KB] || Perseus_Simulation_Final_Frame_searchweb.png (320x180) [39.3 KB] || 12587_Perseus_Wind_FINAL_VX-281959_appletv_subtitles.m4v (1280x720) [85.7 MB] || 12587_Perseus_Wind_1080.webm (1920x1080) [18.2 MB] || 12587_Perseus_Wind_FINAL_VX-281959_appletv.m4v (1280x720) [85.6 MB] || 12587_Perseus_Wind_1080.m4v (1920x1080) [160.3 MB] || 12587_Perseus_Wind_1080.mov (1920x1080) [241.7 MB] || 12587_Perseus_Wind_SRT_Caption.en_US.vtt [1.7 KB] || 12587_Perseus_Wind_SRT_Caption.en_US.srt [1.7 KB] || WMV_12587_Perseus_Wind_FINAL_VX-281959_HD.wmv (3840x2160) [154.8 MB] || 12587_Perseus_Wind.mp4 (3840x2160) [306.3 MB] || 12587_Perseus_Wind_Good_4k.mov (3840x2160) [468.4 MB] || 12587_Perseus_Wind_4K.m4v (3840x2160) [792.0 MB] || 12587_Perseus_Wind_FINAL_VX-281959_youtube_hq.mov (3840x2160) [1.2 GB] || 12587_Perseus_Wind_ProRes_3840x2160_2997.mov (3840x2160) [5.2 GB] || ",
            "hits": 116
        },
        {
            "id": 12539,
            "url": "https://svs.gsfc.nasa.gov/12539/",
            "result_type": "Produced Video",
            "release_date": "2017-03-23T13:00:00-04:00",
            "title": "Hubble Detects a Rogue Supermassive Black Hole",
            "description": "The Hubble Space Telescope captured an image of a quasar named 3C 186 that is offset from the center of its galaxy. Astronomers hypothesize that this supermassive black hole was jettisoned from the center of its galaxy by the recoil from gravitational waves produced by the merging of two supermassive black holes. Read the press release here - https://www.nasa.gov/feature/goddard/2017/feature/gravitational-wave-kicks-monster-black-hole-out-of-galactic-coreDownload the Hubble images here - http://hubblesite.org/news_release/news/2017-12Read the science paper here - http://imgsrc.hubblesite.org/hvi/uploads/science_paper/file_attachment/231/3c186.pdf || ",
            "hits": 53
        },
        {
            "id": 30834,
            "url": "https://svs.gsfc.nasa.gov/30834/",
            "result_type": "Hyperwall Visual",
            "release_date": "2016-12-06T00:00:00-05:00",
            "title": "NASA's Astrophysics Fleet",
            "description": "Astrophysics Fleet || astro-fleet-spiral-07-24-2024_print.jpg (1024x575) [163.0 KB] || astro-fleet-spiral-07-24-2024.png (2560x1439) [2.0 MB] || astro-fleet-spiral-07-24-2024_searchweb.png (320x180) [85.2 KB] || astro-fleet-spiral-07-24-2024_thm.png (80x40) [7.4 KB] || nasas-astrophysics-fleet.hwshow [306 bytes] ||",
            "hits": 71
        },
        {
            "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": 135
        },
        {
            "id": 30575,
            "url": "https://svs.gsfc.nasa.gov/30575/",
            "result_type": "Hyperwall Visual",
            "release_date": "2015-01-15T00:00:00-05:00",
            "title": "Chandra X-ray Observatory Celebrates 15th Anniversary",
            "description": "Four images of supernova remnants from Chandra || chandra_15years_print.jpg (1024x627) [128.4 KB] || chandra_15years_web.jpg (320x196) [20.5 KB] || chandra_15years_searchweb.png (320x180) [78.9 KB] || chandra_15years_thm.png (80x40) [9.2 KB] || chandra_15years.tif (5100x3126) [45.7 MB] || chandra_15years.hwshow [79 bytes] || ",
            "hits": 47
        },
        {
            "id": 30576,
            "url": "https://svs.gsfc.nasa.gov/30576/",
            "result_type": "Hyperwall Visual",
            "release_date": "2015-01-15T00:00:00-05:00",
            "title": "X-ray Telescopes Find Black Hole May Be a Neutrino Factory",
            "description": "A Chandra X-ray telescope image of Sagittarius-A || chandra_sagittarius_a_20150105_print.jpg (1024x576) [116.5 KB] || chandra_sagittarius_a_20150105_searchweb.png (320x180) [74.8 KB] || chandra_sagittarius_a_20150105_web.png (320x180) [74.8 KB] || chandra_sagittarius_a_20150105_thm.png (80x40) [5.7 KB] || chandra_sagittarius_a_20150105_1080p.mp4 (1920x1080) [636.7 KB] || chandra_sagittarius_a_20150105_720p.webm (1280x720) [290.3 KB] || chandra_sagittarius_a_20150105_720p.mp4 (1280x720) [319.4 KB] || chandra_sagittarius_a_20150105_2160p.mp4 (3840x2160) [1.8 MB] || chandra_sagittarius_a_20150105_360p.mp4 (640x360) [94.2 KB] || chandra_sagittarius_a_20150105.tif (3840x2160) [7.3 MB] || ",
            "hits": 77
        },
        {
            "id": 30472,
            "url": "https://svs.gsfc.nasa.gov/30472/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-11-01T12:00:00-04:00",
            "title": "Dwarf Galaxy Caught Ramming into a Large Spiral",
            "description": "Shown here, observations from NASA's Chandra X-ray telescope reveal a massive cloud of multimillion-degree gas in a galaxy about 60 million light years from Earth. The hot gas cloud is likely caused by a collision between a dwarf galaxy [bottom left] and a much larger galaxy called NGC 1232 [center]. The image, which combines X-rays and optical light, shows the scene of the collision. Chandra X-ray data, in purple, show the hot gas has a comet-like appearance, caused by the motion of the dwarf galaxy. Optical data from the European Southern Observatory's Very Large Telescope reveal the spiral galaxy in blue and white. The X-ray emission source at the top right of the image appears to be unrelated to the galaxy collision. If confirmed, this discovery would mark the first time such a collision has been detected only in X-rays, and could have implications for understanding how galaxies grow through similar collisions. The impact between the dwarf galaxy and the spiral galaxy caused a shock wave—akin to a sonic boom on Earth—that generated the hot gas with a temperature of about 6 million degrees.Used in 2014 Calendar. || ",
            "hits": 53
        },
        {
            "id": 30094,
            "url": "https://svs.gsfc.nasa.gov/30094/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "Chandra and the Bullet Cluster",
            "description": "This composite image shows the galaxy cluster 1E 0657-56, also known as the \"bullet cluster.\" This cluster was formed after the collision of two large clusters of galaxies, the most energetic event known in the universe since the Big Bang. Hot gas detected by Chandra in X-rays is seen as two pink clumps in the image and contains most of the \"normal,\" or baryonic, matter in the two clusters. The bullet-shaped clump on the right is the hot gas from one cluster, which passed through the hot gas from the other larger cluster during the collision. An optical image from Magellan and the Hubble Space Telescope shows the galaxies in orange and white. The blue areas in this image show where astronomers find most of the mass in the clusters. The concentration of mass is determined using the effect of so-called gravitational lensing, where light from the distant objects is distorted by intervening matter. Most of the matter in the clusters (blue) is clearly separate from the normal matter (pink), giving direct evidence that nearly all of the matter in the clusters is dark. The animation below shows an artist's representation of the huge collision in the bullet cluster. Hot gas, containing most of the normal matter in the cluster, is shown in red and dark matter is in blue. During the collision the hot gas in each cluster is slowed and distorted by a drag force, similar to air resistance. In contrast, the dark matter is not slowed by the impact, because it does not interact directly with itself or the gas except through gravity, and separates from the normal matter. || ",
            "hits": 364
        },
        {
            "id": 30095,
            "url": "https://svs.gsfc.nasa.gov/30095/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "A Close Encounter Between Galaxies",
            "description": "Astronomers have recently completed a large survey—known as the Cosmic Evolution Survey, or COSMOS—of the sky using some of the powerful telescopes both on the ground and in space. Researchers wanted to test whether close encounters between two galaxies trigger activity in the supermassive blackholes at their centers. The two galaxies seen here are just samples from the thousands of galaxies studied. Chandra data were key because the X-rays could pinpoint just how active the black holes were. It turns out that the black holes within these galaxies are, in fact, growing more rapidly if they are in the early stages of an encounter with another galaxy. || ",
            "hits": 45
        },
        {
            "id": 30096,
            "url": "https://svs.gsfc.nasa.gov/30096/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "Star Blasts Planet with X-rays",
            "description": "Astronomers have found hundreds of planets orbiting stars other than our Sun. New Chandra observations of one planet reveals a fairly dire situation. The Chandra data provide evidence that the star, known as CoRoT-2a, is blasting the extremely close planet with powerful X-rays. These X-rays are a hundred thousand times more intense than those that the Earth receives from the Sun. Astronomers estimate that this high-energy radiation is evaporating about 5 million tons of matter every second from the planet. Luckily, Earth is not in this same situation. || ",
            "hits": 36
        },
        {
            "id": 30097,
            "url": "https://svs.gsfc.nasa.gov/30097/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "A Reconstructed History",
            "description": "Over three decades ago, Stephen Hawking placed, and eventually lost, a bet against the existence of a black hole in Cygnus X-1. Today, astronomers are confident the Cygnus X-1 system contains a black hole. In fact, a team of scientists have combined data from radio, optical, and X-ray telescopes including data from Chandra to determine the black hole's spin, mass, and distance more precisely than ever before. With these key pieces of information, the history of the black hole has been reconstructed. This new information gives astronomers strong clues about how the black hole was born, how much it weighed, and how fast it was spinning. || ",
            "hits": 59
        },
        {
            "id": 30098,
            "url": "https://svs.gsfc.nasa.gov/30098/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "Understanding Supernovas",
            "description": "This is an intriguing supernova remnant (named G299.2-2.9) found about 16,000 light years away in the Milky Way galaxy. The image of the remnant is a combination of X-ray data from Chandra and infrared data from the Two-Micron All-Sky Survey. Astronomers have gathered evidence to show that this remnant is the aftermath of what is called a Type 1A supernova. Type 1A supernovas happen when a white dwarf grows too massive and violently explodes. Astronomers want to understand the exact details of how Type 1A supernovas explode because they use them to measure the accelerated expansion of the universe and study dark energy. Because it is older than most Type 1A supernovas found so far, it provides astronomers with an excellent opportunity to study how these important objects evolve over time. || ",
            "hits": 57
        },
        {
            "id": 30099,
            "url": "https://svs.gsfc.nasa.gov/30099/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "A Far Away Star Cluster",
            "description": "High-mass stars are important because they are responsible for much of the energy pumped into a galaxy over its lifetime. Unfortunately, these stars aren’t understood very well because they are usually found relatively far away in places where lots of gas and dust impede our view. This star cluster (NGC 281) however, is an exception since it is far enough away from the plane of our galaxy  that not a lot of dust and gas obscure its view. The high-mass stars have powerful winds flowing from their surfaces and intense radiation that heats surrounding gas, boiling it away into interstellar space. This process results in the formation of the large columns of gas and dust seen on the left side of the image. These structures likely contain newly forming stars. The eventual deaths of massive stars as supernovas will also seed the galaxy with material and energy. Here we see NGC 281 in X-rays from Chandra and infrared data from Spitzer. || ",
            "hits": 46
        },
        {
            "id": 30100,
            "url": "https://svs.gsfc.nasa.gov/30100/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "Solving Mysteries in Space",
            "description": "In 185 A.D., Chinese astronomers noted a \"guest star\" that mysteriously appeared in the sky and stayed for about 8 months. By the 1960s, scientists had determined that the mysterious object was, in fact, a supernova. Later, they figured out that this supernova remnant, now known as RCW 86, was located about 8,000 light years away. Today, astronomers have taken data from four different telescopes to make this stunning new image. Here, X-rays from Chandra and XMM-Newton have been combined with infrared data from the Spitzer Space Telescope and the WISE mission. These data show that the explosion from nearly 2,000 years ago was caused by a so-called Type 1A supernova. This type of supernova happens when a white dwarf star pulls too much material from a companion star, causing a thermonuclear explosion to go off. || ",
            "hits": 38
        },
        {
            "id": 30101,
            "url": "https://svs.gsfc.nasa.gov/30101/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "X-ray Stripes in Tycho",
            "description": "A long Chandra observation of Tycho has revealed a pattern of X-ray \"stripes\" never seen before in a supernova remnant.This result could explain how some of the extremely energetic particles bombarding the Earth, called cosmic rays, are produced.Tycho is a supernova remnant that was first observed in 1572 by a famous Danish astronomer who became its namesake. || ",
            "hits": 30
        },
        {
            "id": 30102,
            "url": "https://svs.gsfc.nasa.gov/30102/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "Galaxies Collide",
            "description": "This video podcast from the Chandra X-ray Center shows a textbook example of the very early stages of two galaxies colliding. Astronomers have named the edge-on galaxy at the top VV 340A, and the face-on galaxy at the bottom VV 340B. Millions of years later these two spirals will merge—much like the Milky Way (i.e., our galaxy) and Andromeda are predicted to do billions of years from now. Chandra data are being shown here with optical data from Hubble.The video has been prepared for use on the hyperwall. || ",
            "hits": 38
        },
        {
            "id": 30134,
            "url": "https://svs.gsfc.nasa.gov/30134/",
            "result_type": "Hyperwall Visual",
            "release_date": "2013-10-17T12:00:00-04:00",
            "title": "Physics of the Cosmos",
            "description": "Missions that make up Physics of the Cosmos Program || physics_of_the_cosmos_print.jpg (1024x574) [203.5 KB] || physics_of_the_cosmos.png (4104x2304) [10.6 MB] || physics_of_the_cosmos_searchweb.png (320x180) [97.9 KB] || physics_of_the_cosmos_thm.png (80x40) [6.8 KB] || For More Information || See [http://pcos.gsfc.nasa.gov](http://pcos.gsfc.nasa.gov) || ",
            "hits": 64
        },
        {
            "id": 11162,
            "url": "https://svs.gsfc.nasa.gov/11162/",
            "result_type": "Produced Video",
            "release_date": "2012-12-12T13:00:00-05:00",
            "title": "Astronomers Catch a Jet from a Binge-eating Black Hole",
            "description": "In January 2012, a new X-ray source flared and rapidly brightened in the Andromeda galaxy (M31), located 2.5 million light-years away. Classified as an ultraluminous X-ray source (ULX), the object is only the second ever seen in M31 and became the target of an intense observing campaign by orbiting X-ray telescopes — including NASA's Swift — and radio observatories on the ground. These efforts resulted in the first detection of radio-emitting jets from a stellar-mass black hole outside our own galaxy. A ULX is thought to be a binary system containing a black hole that is rapidly accreting gas from its stellar companion. However, to account for the brilliant high-energy output, gas must be flowing into the black hole at a rate very near a theoretical maximum, a feeding frenzy that astronomers do not yet fully understand. As gas spirals toward a black hole, it becomes compressed and heated, eventually reaching temperatures where it emits X-rays. As the rate of matter ingested by the black hole increases, so does the X-ray brightness of the gas. At some point, the X-ray emission becomes so intense that it pushes back on the inflowing gas, theoretically capping any further increase in the black hole's accretion rate. Astronomers refer to this as the Eddington limit, after Sir Arthur Eddington, the British astrophysicist who first recognized a similar cutoff to the maximum luminosity of a star.  Black-hole binaries in our galaxy that show accretion at the Eddington limit also exhibit powerful radio-emitting jets that move near the speed of light. Although astronomers know little about the physical nature of these jets, detecting them at all would confirm that the ULX is accreting at the limit and identify it as a stellar mass black hole. The European Space Agency's XMM-Newton observatory first detected the ULX, dubbed XMMU J004243.6+412519 after its astronomical coordinates, on Jan. 15. Middleton and a large international team then began monitoring it at X-ray energies using XMM-Newton and NASA's Swift satellite and Chandra X-ray Observatory. The scientists conducted radio observations using the Karl G. Jansky Very Large Array (VLA) and the continent-spanning Very Long Baseline Array, both operated by the National Science Foundation in Socorro, N.M., and the Arcminute Microkelvin Imager Large Array located at the Mullard Radio Astronomy Observatory near Cambridge, England.  In a paper published online by the journal Nature on Wednesday, Dec. 12, 2012, the scientists reveal their successful detection of intense radio emission associated with a jet moving at more than 85 percent the speed of light. VLA data reveal that the radio emission was quite variable, in one instance decreasing by a factor of two in just half an hour. This tells astronomers that the region producing radio waves is extremely small in size — no farther across than the distance between Jupiter and the sun. Black holes have been conclusively detected in two varieties: \"lightweight\" ones created by stars and containing up to a few dozen times the sun's mass, and supermassive \"heavyweights\" of millions to billions of solar masses found at the centers of most big galaxies. Astronomers have debated whether many ULXs represent hard-to-find \"middleweight\" versions, containing hundreds to thousands of solar masses. || ",
            "hits": 118
        },
        {
            "id": 30093,
            "url": "https://svs.gsfc.nasa.gov/30093/",
            "result_type": "Hyperwall Visual",
            "release_date": "2011-10-17T12:00:00-04:00",
            "title": "Chandra Tour of the Crab Nebula",
            "description": "The Crab Nebula is one of the brightest sources of high-energy radiation in the sky. In fact, itâs the expanding remains of an exploded star--a supernova. Scientists have used virtually every telescope to study the Crab. The supernova left behind a magnetized neutron star â a pulsar. The pulsar spins 30 times a second. Each rotation sweeps a lighthouse-like beam, creating a pulse of electromagnetic energy detectable across the spectrum. Recently, NASA's Fermi Gamma Ray Observatory and Italy's AGILE Satellite detected strong gamma-ray flares from the Crab, including a series of \"superflares\" in April 2011. To help pinpoint the location of these flares, astronomers enlisted NASA's Chandra X-ray Observatory. With its keen X-ray eyes, Chandra saw lots of activity, but none seemed to correlated with the superflare. This hints that whatever is causing the flares is happening about a third of a light year from the pulsar. Chandra observations will likely help scientists explain gamma-ray flares. || ",
            "hits": 56
        },
        {
            "id": 30153,
            "url": "https://svs.gsfc.nasa.gov/30153/",
            "result_type": "Hyperwall Visual",
            "release_date": "2011-04-27T12:00:00-04:00",
            "title": "Tycho's Supernova Remnant: NASA'S Chandra Finds New Evidence on Origin of Supernovas",
            "description": "This image from NASA’s Chandra X-Ray Observatory of Tycho's supernova remnant, dubbed Tycho for short, contains striking new evidence for what triggered the original supernova explosion, as seen from Earth in 1572. Tycho was formed by a Type Ia supernova, a category of stellar explosion used in measuring astronomical distances because of their reliable brightness.Low and medium energy X-rays in red and green show expanding debris from the supernova explosion. High energy X-rays in blue reveal the blast wave, a shell of extremely energetic electrons. Also shown in the lower left region of Tycho is a blue arc of X-ray emission. Several lines of evidence support the conclusion that this arc is due to a shock wave created when a white dwarf exploded and blew material off the surface of a nearby companion star. Previously, studies with optical telescopes have revealed a star within the remnant that is moving much more quickly than its neighbors, hinting that it could be the companion to the supernova that was given a kick by the explosion. || ",
            "hits": 84
        }
    ]
}