Credit: NASA's Goddard Space Flight Center/CI Lab
Music: \"Exploding Skies\" from Killer Tracks
Watch this video on the NASA Goddard YouTube channel.
Complete transcript available.
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Credit: NASA's Goddard Space Flight Center/CI Lab
Music: \"Exploding Skies\" from Killer Tracks
Complete transcript available.
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The animation then shows the kilonova, the neutron-rich debris of the explosion (depicted by the expanding and flattened blue spheres) powered by the decay of newly forged radioactive elements. The jets emit gamma rays, the shock wave glows in X-rays and the kilonova produces ultraviolet light.Credit: NASA's Goddard Space Flight Center/CI LabMusic: \"Exploding Skies\" from Killer TracksComplete transcript available.", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 254640, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410311, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/12740_Blue_Kilonova_Music-EndTags_4k_Best.webm", "filename": "12740_Blue_Kilonova_Music-EndTags_4k_Best.webm", "media_type": "Movie", "alt_text": "This animation shows the shrinking orbit and explosive merging of two neutron stars, immediately followed by the eruption of powerful jets (orange) and then expanding shock waves where the jets plow into surrounding material (pink structures at the tip of each jet). The animation then shows the kilonova, the neutron-rich debris of the explosion (depicted by the expanding and flattened blue spheres) powered by the decay of newly forged radioactive elements. 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The animation then shows the kilonova, the neutron-rich debris of the explosion (depicted by the expanding and flattened blue spheres) powered by the decay of newly forged radioactive elements. 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The animation then shows the kilonova, the neutron-rich debris of the explosion (depicted by the expanding and flattened blue spheres) powered by the decay of newly forged radioactive elements. The jets emit gamma rays, the shock wave glows in X-rays and the kilonova produces ultraviolet light.Credit: NASA's Goddard Space Flight Center/CI LabMusic: \"Exploding Skies\" from Killer TracksComplete transcript available.", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 328819, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328819", "widget": "Video player", "title": "", "caption": "", "description": "This animation shows the shrinking orbit and explosive merging of two neutron stars, immediately followed by the eruption of powerful jets (orange) and then expanding shock waves where the jets plow into surrounding material (pink structures at the tip of each jet). The animation then shows the kilonova, the neutron-rich debris of the explosion (depicted by the expanding and flattened blue spheres) powered by the decay of newly forged radioactive elements. The jets emit gamma rays, the shock wave glows in X-rays and the kilonova produces ultraviolet light.This version is the raw 3840x2160, 60 fps animation and includes frames for download.
Credit: NASA's Goddard Space Flight Center/CI Lab
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Credit: NASA and ESA", "items": [ { "id": 254660, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410331, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Hubble_NS_Merger_Full.gif", "filename": "Hubble_NS_Merger_Full.gif", "media_type": "Image", "alt_text": "On August 17, 2017, the Laser Interferometer Gravitational-wave Observatory detected gravitational waves from a neutron star collision. Within 12 hours, observatories had identified the source of the event within the galaxy NGC 4993, shown in this Hubble Space Telescope image, and located an associated stellar flare called a kilonova (box). Inset: Hubble observed the kilonova fade over the course of six days.Credit: NASA and ESA", "width": 1365, "height": 1458, "pixels": 1990170 } }, { "id": 254661, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410332, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Hubble_NS_Merger_500.gif", "filename": "Hubble_NS_Merger_500.gif", "media_type": "Image", "alt_text": "On August 17, 2017, the Laser Interferometer Gravitational-wave Observatory detected gravitational waves from a neutron star collision. Within 12 hours, observatories had identified the source of the event within the galaxy NGC 4993, shown in this Hubble Space Telescope image, and located an associated stellar flare called a kilonova (box). Inset: Hubble observed the kilonova fade over the course of six days.Credit: NASA and ESA", "width": 500, "height": 534, "pixels": 267000 } } ], "extra_data": {} }, { "id": 328825, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328825", "widget": "Single image", "title": "", "caption": "", "description": "On August 17, 2017, the Laser Interferometer Gravitational-wave Observatory detected gravitational waves from a neutron star collision. Within 12 hours, observatories had identified the source of the event within the galaxy NGC 4993, shown in this Hubble Space Telescope image, and located an associated stellar flare called a kilonova. Hubble observed that flare of light fade over the course of six days.
Credit: NASA and ESA", "items": [ { "id": 254662, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410333, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/STSCIHp1741bf1365x1458.png", "filename": "STSCIHp1741bf1365x1458.png", "media_type": "Image", "alt_text": "On August 17, 2017, the Laser Interferometer Gravitational-wave Observatory detected gravitational waves from a neutron star collision. Within 12 hours, observatories had identified the source of the event within the galaxy NGC 4993, shown in this Hubble Space Telescope image, and located an associated stellar flare called a kilonova. Hubble observed that flare of light fade over the course of six days. Credit: NASA and ESA", "width": 1365, "height": 1458, "pixels": 1990170 } }, { "id": 254663, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410334, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/STSCIHp1741bf1365x1458_print.jpg", "filename": "STSCIHp1741bf1365x1458_print.jpg", "media_type": "Image", "alt_text": "On August 17, 2017, the Laser Interferometer Gravitational-wave Observatory detected gravitational waves from a neutron star collision. Within 12 hours, observatories had identified the source of the event within the galaxy NGC 4993, shown in this Hubble Space Telescope image, and located an associated stellar flare called a kilonova. Hubble observed that flare of light fade over the course of six days. Credit: NASA and ESA", "width": 1024, "height": 1093, "pixels": 1119232 } } ], "extra_data": {} }, { "id": 328826, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328826", "widget": "Single image", "title": "", "caption": "", "description": "Swift’s Ultraviolet/Optical Telescope imaged the kilonova produced by merging neutron stars in the galaxy NGC 4993 (box) on Aug. 18, 2017, about 15 hours after gravitational waves and the gamma-ray burst were detected. The source was unexpectedly bright in ultraviolet light. It faded rapidly and was undetectable in UV when Swift looked again on Aug. 29. This false-color composite combines images taken through three ultraviolet filters. Inset: Magnified views of the galaxy.
Credit: NASA/Swift", "items": [ { "id": 254665, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410336, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Swift_kilonova_800.gif", "filename": "Swift_kilonova_800.gif", "media_type": "Image", "alt_text": "Swift’s Ultraviolet/Optical Telescope imaged the kilonova produced by merging neutron stars in the galaxy NGC 4993 (box) on Aug. 18, 2017, about 15 hours after gravitational waves and the gamma-ray burst were detected. The source was unexpectedly bright in ultraviolet light. It faded rapidly and was undetectable in UV when Swift looked again on Aug. 29. This false-color composite combines images taken through three ultraviolet filters. Inset: Magnified views of the galaxy. Credit: NASA/Swift", "width": 800, "height": 800, "pixels": 640000 } }, { "id": 254664, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410335, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Swift_kilonova_500.gif", "filename": "Swift_kilonova_500.gif", "media_type": "Image", "alt_text": "Swift’s Ultraviolet/Optical Telescope imaged the kilonova produced by merging neutron stars in the galaxy NGC 4993 (box) on Aug. 18, 2017, about 15 hours after gravitational waves and the gamma-ray burst were detected. The source was unexpectedly bright in ultraviolet light. It faded rapidly and was undetectable in UV when Swift looked again on Aug. 29. This false-color composite combines images taken through three ultraviolet filters. Inset: Magnified views of the galaxy. Credit: NASA/Swift", "width": 500, "height": 500, "pixels": 250000 } } ], "extra_data": {} }, { "id": 328827, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328827", "widget": "Single image", "title": "", "caption": "", "description": "Swift's Ultraviolet/Optical Telescope imaged the kilonova produced by merging neutron stars in the galaxy NGC 4993 (box) on Aug. 18, 2017. The source was unexpectedly bright in ultraviolet light. This false-color composite combines images taken through three ultraviolet filters. Inset: A magnified view of the galaxy.
Credit: NASA/Swift", "items": [ { "id": 254666, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410337, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Swift170818_with_inset.jpg", "filename": "Swift170818_with_inset.jpg", "media_type": "Image", "alt_text": "Swift's Ultraviolet/Optical Telescope imaged the kilonova produced by merging neutron stars in the galaxy NGC 4993 (box) on Aug. 18, 2017. The source was unexpectedly bright in ultraviolet light. This false-color composite combines images taken through three ultraviolet filters. Inset: A magnified view of the galaxy. Credit: NASA/Swift", "width": 2500, "height": 2517, "pixels": 6292500 } } ], "extra_data": {} }, { "id": 328828, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328828", "widget": "Single image", "title": "", "caption": "", "description": "Swift's Ultraviolet/Optical Telescope imaged the kilonova produced by merging neutron stars in the galaxy NGC 4993 (box) on Aug. 18, 2017. The source was unexpectedly bright in ultraviolet light. This false-color composite combines images taken through three ultraviolet filters. Inset: A magnified view of the galaxy. No Labels.
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Credit: NASA/Swift", "items": [ { "id": 254669, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410340, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Swift170829_with_inset_nolabels.jpg", "filename": "Swift170829_with_inset_nolabels.jpg", "media_type": "Image", "alt_text": "The kilonova's ultraviolet light had faded completely when Swift observed the source on Aug. 29, 2017. This false-color composite combines images taken through three ultraviolet filters. Inset: A magnified view of the galaxy. No Labels. Credit: NASA/Swift", "width": 2500, "height": 2517, "pixels": 6292500 } } ], "extra_data": {} }, { "id": 328831, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328831", "widget": "Single image", "title": "", "caption": "", "description": "The kilonova associated with GW170817 (box) was observed by NASA's Hubble Space Telescope and Chandra X-ray Observatory. Hubble detected optical and infrared light from the hot expanding debris. The merging neutron stars produced gravitational waves and launched jets that produced a gamma-ray burst. Nine days later, Chandra detected the X-ray afterglow emitted by the jet directed toward Earth after it had spread into our line of sight.
\tCredit: NASA/CXC/E. Troja", "items": [ { "id": 254671, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410342, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Hubble_Chandra_800.gif", "filename": "Hubble_Chandra_800.gif", "media_type": "Image", "alt_text": "The kilonova associated with GW170817 (box) was observed by NASA's Hubble Space Telescope and Chandra X-ray Observatory. Hubble detected optical and infrared light from the hot expanding debris. The merging neutron stars produced gravitational waves and launched jets that produced a gamma-ray burst. Nine days later, Chandra detected the X-ray afterglow emitted by the jet directed toward Earth after it had spread into our line of sight. \tCredit: NASA/CXC/E. Troja", "width": 800, "height": 450, "pixels": 360000 } }, { "id": 254670, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410341, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Hubble_Chandra_500.gif", "filename": "Hubble_Chandra_500.gif", "media_type": "Image", "alt_text": "The kilonova associated with GW170817 (box) was observed by NASA's Hubble Space Telescope and Chandra X-ray Observatory. Hubble detected optical and infrared light from the hot expanding debris. The merging neutron stars produced gravitational waves and launched jets that produced a gamma-ray burst. Nine days later, Chandra detected the X-ray afterglow emitted by the jet directed toward Earth after it had spread into our line of sight. \tCredit: NASA/CXC/E. Troja", "width": 500, "height": 281, "pixels": 140500 } } ], "extra_data": {} }, { "id": 328832, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328832", "widget": "Single image", "title": "", "caption": "", "description": "On Aug. 26, 2017, NASA's Chandra X-ray Observatory first detected X-rays from the source of the neutron star collision known as GW170817. Earlier observations did not see X-ray emission. The crash produced jets that immediately emitted a gamma-ray burst and continued on into space. Nine days later, Chandra detected the X-ray afterglow emitted by the jet directed toward Earth after it had spread into our line of sight. Labels.
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Credit: NASA/CXC/E. Troja", "items": [ { "id": 254675, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410346, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Chandra_GW170817_nolabels_print.jpg", "filename": "Chandra_GW170817_nolabels_print.jpg", "media_type": "Image", "alt_text": "On Aug. 26, 2017, NASA's Chandra X-ray Observatory first detected X-rays from the source of the neutron star collision known as GW170817. Earlier observations did not see X-ray emission. The crash produced jets that immediately emitted a gamma-ray burst and continued on into space. Nine days later, Chandra detected the X-ray afterglow emitted by the jet directed toward Earth after it had spread into our line of sight. Credit: NASA/CXC/E. Troja", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 254674, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410345, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Chandra_GW170817_nolabels.jpg", "filename": "Chandra_GW170817_nolabels.jpg", "media_type": "Image", "alt_text": "On Aug. 26, 2017, NASA's Chandra X-ray Observatory first detected X-rays from the source of the neutron star collision known as GW170817. Earlier observations did not see X-ray emission. The crash produced jets that immediately emitted a gamma-ray burst and continued on into space. Nine days later, Chandra detected the X-ray afterglow emitted by the jet directed toward Earth after it had spread into our line of sight. Credit: NASA/CXC/E. Troja", "width": 2599, "height": 1462, "pixels": 3799738 } } ], "extra_data": {} }, { "id": 328834, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328834", "widget": "Video player", "title": "", "caption": "", "description": "The first sign of the Aug. 17, 2017, neutron star merger was a brief burst of gamma-rays seen by NASA's Fermi Gamma-ray Space Telescope (top). Shortly after, LIGO scientists reported detecting gravitational waves that arrived 1.7 seconds before the Fermi burst (middle). A short time later, scientists analyzing gamma-ray data from the European Space Agency's INTEGRAL spacecraft also reported seeing the burst (bottom).
Credit: NASA's Goddard Space Flight Center, Caltech/MIT/LIGO Lab and ESA", "items": [ { "id": 254680, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410347, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/Fermi-LIGO_INTEGRAL_Graph_Still.jpg", "filename": "Fermi-LIGO_INTEGRAL_Graph_Still.jpg", "media_type": "Image", "alt_text": "The first sign of the Aug. 17, 2017, neutron star merger was a brief burst of gamma-rays seen by NASA's Fermi Gamma-ray Space Telescope (top). Shortly after, LIGO scientists reported detecting gravitational waves that arrived 1.7 seconds before the Fermi burst (middle). A short time later, scientists analyzing gamma-ray data from the European Space Agency's INTEGRAL spacecraft also reported seeing the burst (bottom). 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Credit: NASA's Goddard Space Flight Center/CI Lab", "items": [ { "id": 254697, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410368, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/NeutronStarMerger_Shot1_4KStill4_v01_print.jpg", "filename": "NeutronStarMerger_Shot1_4KStill4_v01_print.jpg", "media_type": "Image", "alt_text": "Additional still from animation. As neutron stars collide, some of the debris blasts away in particle jets moving at nearly the speed of light, producing a brief burst of gamma rays. Credit: NASA's Goddard Space Flight Center/CI Lab", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 254696, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410367, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/NeutronStarMerger_Shot1_4KStill4_v01.png", "filename": "NeutronStarMerger_Shot1_4KStill4_v01.png", "media_type": "Image", "alt_text": "Additional still from animation. As neutron stars collide, some of the debris blasts away in particle jets moving at nearly the speed of light, producing a brief burst of gamma rays. Credit: NASA's Goddard Space Flight Center/CI Lab", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 328840, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328840", "widget": "Single image", "title": "", "caption": "", "description": "Additional still from animation. This illustration shows the hot, dense, expanding cloud of debris stripped from the neutron stars just before they collided. This cloud produces the kilonova's visible and infrared light. Within this neutron-rich debris, large quantities of some of the universe's heaviest elements were forged, including hundreds of Earth masses of gold and platinum.
Credit: NASA's Goddard Space Flight Center/CI Lab", "items": [ { "id": 254699, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410370, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/NeutronStarMerger_Shot1_4KStill7_v01_print.jpg", "filename": "NeutronStarMerger_Shot1_4KStill7_v01_print.jpg", "media_type": "Image", "alt_text": "Additional still from animation. This illustration shows the hot, dense, expanding cloud of debris stripped from the neutron stars just before they collided. This cloud produces the kilonova's visible and infrared light. Within this neutron-rich debris, large quantities of some of the universe's heaviest elements were forged, including hundreds of Earth masses of gold and platinum. Credit: NASA's Goddard Space Flight Center/CI Lab", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 254698, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410369, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/NeutronStarMerger_Shot1_4KStill7_v01.png", "filename": "NeutronStarMerger_Shot1_4KStill7_v01.png", "media_type": "Image", "alt_text": "Additional still from animation. This illustration shows the hot, dense, expanding cloud of debris stripped from the neutron stars just before they collided. This cloud produces the kilonova's visible and infrared light. Within this neutron-rich debris, large quantities of some of the universe's heaviest elements were forged, including hundreds of Earth masses of gold and platinum. Credit: NASA's Goddard Space Flight Center/CI Lab", "width": 3840, "height": 2160, "pixels": 8294400 } } ], "extra_data": {} }, { "id": 328841, "url": "https://svs.gsfc.nasa.gov/12740/#media_group_328841", "widget": "Single image", "title": "", "caption": "", "description": "Additional still from animation. After the neutron stars merged, the remains of the jets that produced the gamma-ray burst continue expanding into space, as shown in this illustration. After nine days, the jet directed toward us had spread laterally enough that observers could detect its X-ray emission.
Credit: NASA's Goddard Space Flight Center/CI Lab", "items": [ { "id": 254701, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 410372, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012740/NeutronStarMerger_Shot2_4KStill1_v01_print.jpg", "filename": "NeutronStarMerger_Shot2_4KStill1_v01_print.jpg", "media_type": "Image", "alt_text": "Additional still from animation. After the neutron stars merged, the remains of the jets that produced the gamma-ray burst continue expanding into space, as shown in this illustration. 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These structures, called magnetospheres, interact as the city-sized stars enter their final orbits. Magnetic field lines can connect both stars, break, and reconnect, while currents surge through surrounding plasma moving at nearly the speed of light. The simulations show that these systems may produce X-rays and gamma rays that future observatories should be able to detect. Credit: NASA’s Goddard Space Flight CenterAlt text: Narrated video introducing simulations of merging neutron star magnetospheresMusic: “A Theory Develops,” Pip Heywood [PRS], Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || NS_Binary_Sim_Still.jpg (5760x3240) [1.4 MB] || NS_Binary_Sim_Still_searchweb.png (320x180) [67.6 KB] || NS_Binary_Sim_Still_thm.png (80x40) [5.2 KB] || 14884_NeutronStarBinarySim2_good.mp4 (1920x1080) [220.4 MB] || 14884_NeutronStarBinarySim2_best.mp4 (1920x1080) [363.9 MB] || NeutronStarBinarySimulationCaptions.en_US.srt [2.4 KB] || NeutronStarBinarySimulationCaptions.en_US.vtt [2.2 KB] || 14884_NeutronStarBinarySim2_ProRes_1920x1080_2997.mov (1920x1080) [1.7 GB] || ", "release_date": "2026-01-29T11:00:00-05:00", "update_date": "2026-01-22T10:17:05.309486-05:00", "main_image": { "id": 1159928, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014884/NS_Binary_Sim_Still_searchweb.png", "filename": "NS_Binary_Sim_Still_searchweb.png", "media_type": "Image", "alt_text": "New supercomputer simulations explore the tangled magnetic structures around merging neutron stars. These structures, called magnetospheres, interact as the city-sized stars enter their final orbits. Magnetic field lines can connect both stars, break, and reconnect, while currents surge through surrounding plasma moving at nearly the speed of light. The simulations show that these systems may produce X-rays and gamma rays that future observatories should be able to detect. Credit: NASA’s Goddard Space Flight CenterAlt text: Narrated video introducing simulations of merging neutron star magnetospheresMusic: “A Theory Develops,” Pip Heywood [PRS], Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available.", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 14209, "url": "https://svs.gsfc.nasa.gov/14209/", "page_type": "Produced Video", "title": "NASA’s Compton Mission Glimpses Supersized Neutron Stars", "description": "This simulation tracks the gravitational wave and density changes as two orbiting neutron stars crash together. Dark purple colors represent the lowest densities, while yellow-white shows the highest. An audible tone and a visual frequency scale (at left) track the steady rise in the frequency of gravitational waves as the neutron stars close. When the objects merge at 42 seconds, the gravitational waves suddenly jump to frequencies of thousands of hertz and bounce between two primary tones (quasiperiodic oscillations, or QPOs). The presence of these signals in such simulations led to the search and discovery of similar phenomena in the light emitted by short gamma-ray bursts.Credit: NASA's Goddard Space Flight Center and STAG Research Centre/Peter HammondComplete transcript available.Watch this video on the NASA Goddard YouTube channel.Visual description:On a black background with a faint gray grid, two multicolored blobs representing merging neutron stars circle and close. The colors indicate density. Yellow-white indicates the highest densities, at the centers of the objects. The colors change to orange and red at their periphery, with purple colors representing matter torn from and swirling with the neutron stars as they orbit. The grid shrinks as the camera pulls back to capture a wider view of the merger. A pale orange display at left shows the changing frequency of the gravitational waves generated, which is also indicated by the rising tone. 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Join in! Below, you'll find many GIFs to use. || ", "release_date": "2022-04-12T00:00:00-04:00", "update_date": "2023-05-03T11:44:14.472149-04:00", "main_image": { "id": 372070, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014100/a014132/BHW_BH_GIF_Thumbnail.jpg", "filename": "BHW_BH_GIF_Thumbnail.jpg", "media_type": "Image", "alt_text": "Thumbnail", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 12949, "url": "https://svs.gsfc.nasa.gov/12949/", "page_type": "Produced Video", "title": "Star Collision", "description": "Light bursts from the collision of two neutron stars. || Neutron_Star_Merger_Still_1_1024x576.jpg (1024x576) [148.9 KB] || Neutron_Star_Merger_Still_1.jpg (3840x2160) [2.4 MB] || Neutron_Star_Merger_Still_1_searchweb.png (320x180) [88.4 KB] || Neutron_Star_Merger_Still_1_thm.png (80x40) [7.3 KB] || ", "release_date": "2018-07-02T13:00:00-04:00", "update_date": "2025-06-23T00:18:03.203334-04:00", "main_image": { "id": 402363, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012900/a012949/Neutron_Star_Merger_Still_1_1024x576.jpg", "filename": "Neutron_Star_Merger_Still_1_1024x576.jpg", "media_type": "Image", "alt_text": "Light bursts from the collision of two neutron stars.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 12741, "url": "https://svs.gsfc.nasa.gov/12741/", "page_type": "Produced Video", "title": "Astrophysics Live Shot 10.17.2017", "description": "Live shot b-rollFor more information see: NASA Missions Catch First Light From A Gravitational-Wave-Event || 014_Broll.00001_print.jpg (1024x576) [111.1 KB] || 014_Broll.00001_searchweb.png (320x180) [78.4 KB] || 014_Broll.00001_thm.png (80x40) [6.8 KB] || 014_Broll.webm (1280x720) [30.2 MB] || 014_Broll.mp4 (1280x720) [469.2 MB] || 014_Broll.mov (1280x720) [4.2 GB] || 014_Broll_2.mov (1280x720) [4.2 GB] || ", "release_date": "2017-10-13T14:00:00-04:00", "update_date": "2023-05-03T13:47:18.075791-04:00", "main_image": { "id": 410178, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012700/a012741/014_Broll.00001_print.jpg", "filename": "014_Broll.00001_print.jpg", "media_type": "Image", "alt_text": "Live shot b-rollFor more information see: NASA Missions Catch First Light From A Gravitational-Wave-Event ", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }