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Neutron stars squeeze up to two solar masses into a city-size volume, giving rise to the highest stable densities known anywhere. The nature of matter under these conditions is a decades-old unsolved problem.", "items": [ { "id": 259567, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 414794, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020267/2017_02_NICER_NeutronStar_SanFrancisco_Final_0000_print.jpg", "filename": "2017_02_NICER_NeutronStar_SanFrancisco_Final_0000_print.jpg", "media_type": "Image", "alt_text": "This animation shows the size and scale of a neutron star over San Francisco. Neutron stars squeeze up to two solar masses into a city-size volume, giving rise to the highest stable densities known anywhere. 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NICER will confront nuclear physics theory with unique measurements, exploring the exotic states of matter within neutron stars through rotation-resolved X-ray spectroscopy.
", "items": [ { "id": 259575, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 414801, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020267/2017_02_NICER_NeutronStar_Interior_Final_450_print.jpg", "filename": "2017_02_NICER_NeutronStar_Interior_Final_450_print.jpg", "media_type": "Image", "alt_text": "This stylized animation shows the structure of a neutron star. The states of matter at neutron stars' inner cores remains a mystery.NICER will confront nuclear physics theory with unique measurements, exploring the exotic states of matter within neutron stars through rotation-resolved X-ray spectroscopy. 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", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 259580, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 414807, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020267/Solo_NS_2160p60.mp4", "filename": "Solo_NS_2160p60.mp4", "media_type": "Movie", "alt_text": "Animation of a spinning neutron star in space. Neutron stars are directly observable, usually as “pulsars” – the lighthouses of the cosmos. ", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 259581, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 414808, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020267/Solo_NS_Prores.webm", "filename": "Solo_NS_Prores.webm", "media_type": "Movie", "alt_text": "Animation of a spinning neutron star in space. Neutron stars are directly observable, usually as “pulsars” – the lighthouses of the cosmos. ", "width": 3840, "height": 2160, "pixels": 8294400 } }, { "id": 259577, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 414804, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020267/Solo_NS_Prores.mov", "filename": "Solo_NS_Prores.mov", "media_type": "Movie", "alt_text": "Animation of a spinning neutron star in space. Neutron stars are directly observable, usually as “pulsars” – the lighthouses of the cosmos. 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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": 13841, "url": "https://svs.gsfc.nasa.gov/13841/", "page_type": "Produced Video", "title": "NASA’s NICER Telescope Examined a Star on the Edge of Becoming a Black Hole Live Shots", "description": "Quick link to canned interview in Spanish with Diego Altamirano: Principal Research Fellow, University of Southampton.Quick link to associated B-ROLL for live shots. || Unknown-2.png (1600x535) [1.1 MB] || Unknown-2_print.jpg (1024x342) [147.9 KB] || Unknown-2_searchweb.png (320x180) [95.0 KB] || Unknown-2_thm.png (80x40) [7.4 KB] || ", "release_date": "2021-04-27T17:00:00-04:00", "update_date": "2023-05-03T13:44:10.105511-04:00", "main_image": { "id": 378894, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a013800/a013841/Unknown-2.png", "filename": "Unknown-2.png", "media_type": "Image", "alt_text": "Quick link to canned interview in Spanish with Diego Altamirano: Principal Research Fellow, University of Southampton.Quick link to associated B-ROLL for live shots.", "width": 1600, "height": 535, "pixels": 856000 } }, { "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 } }, { "id": 12630, "url": "https://svs.gsfc.nasa.gov/12630/", "page_type": "Produced Video", "title": "NICER Mission Overview", "description": "The Neutron Star Interior Composition Explorer (NICER) payload, destined for the exterior of the space station, will study the physics of neutron stars, providing new insight into their nature and behavior. These stars are called “pulsars” because of the unique way they emit light – in a beam similar to a lighthouse beacon. As the star spins, the light sweeps past us, making it appear as if the star is pulsing. Neutron stars emit X-ray radiation, enabling the NICER technology to observe and record information about their structure, dynamics and energetics. The payload also includes a technology demonstration called the Station Explorer for X-ray Timing and Navigation Technology (SEXTANT) which will help researchers to develop a pulsar-based space navigation system. Pulsar navigation could work similarly to GPS on Earth, providing precise position and time for spacecraft throughout the solar system.The 2-in-1 mission launched on June 3, 2017 aboard SpaceX's eleventh contracted cargo resupply mission with NASA to the International Space Station. The payload arrived at the space station in the Dragon spacecraft, along with other cargo, on June 5, 2017. || ", "release_date": "2017-06-01T00:00:00-04:00", "update_date": "2023-05-03T13:47:37.170120-04:00", "main_image": { "id": 413817, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012600/a012630/NICER-overview-cover_print.jpg", "filename": "NICER-overview-cover_print.jpg", "media_type": "Image", "alt_text": "Music credit: Killer Tracks, Shifting Reality", "width": 1024, "height": 575, "pixels": 588800 } }, { "id": 12605, "url": "https://svs.gsfc.nasa.gov/12605/", "page_type": "Produced Video", "title": "What is a Neutron Star?", "description": "Here's just some of what we already know about neutron stars. An upcoming NASA mission will further investigate these unusual objects from the International Space Station. The Neutron star Interior Composition Explorer mission, or NICER, will study the extraordinary environments — strong gravity, ultra-dense matter, and the most powerful magnetic fields in the universe — embodied by neutron stars. NICER is a two-in-one mission. The embedded Station Explorer for X-ray Timing and Navigation Technology, or SEXTANT, demonstration will use NICER data to validate, for the first time in space, pulsar-based navigation.NICER is planned for launch aboard the SpaceX CRS-11, currently scheduled for June 1, 2017. Learn more about the mission at nasa.gov/nicer. || ", "release_date": "2017-05-18T00:00:00-04:00", "update_date": "2023-05-03T13:47:40.910858-04:00", "main_image": { "id": 414352, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012600/a012605/Neutron_star_NICER_print.jpg", "filename": "Neutron_star_NICER_print.jpg", "media_type": "Image", "alt_text": "This video explains some of what's known about neutron stars and previews NASA's Neutron star Interior Composition Explorer mission (NICER).Music: Killer Tracks, Choose (NM318); Calamitous Computations (ICON011); Dreaming Solitude (PKT017)", "width": 1024, "height": 570, "pixels": 583680 } }, { "id": 20266, "url": "https://svs.gsfc.nasa.gov/20266/", "page_type": "Animation", "title": "NICER Payload Animations", "description": "Animated video and stills of the Neutron star Interior Composition Explorer (NICER) payload. || ", "release_date": "2017-04-26T00:00:00-04:00", "update_date": "2025-01-06T01:42:07.746116-05:00", "main_image": { "id": 414765, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020266/NICER_ISS_00001_print.jpg", "filename": "NICER_ISS_00001_print.jpg", "media_type": "Image", "alt_text": "Wide angle view and zoom in of the NICER payload onboard the International Space Station.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 20268, "url": "https://svs.gsfc.nasa.gov/20268/", "page_type": "Animation", "title": "NICER Lensing", "description": "The Neutron star Interior Composition Explorer (NICER) mission will study neutron stars, the densest known objects in the cosmos. These neutron star animations and graphics highlight some of their unique characteristics.For more information about NICER visit: nasa.gov/nicer. || ", "release_date": "2017-04-26T00:00:00-04:00", "update_date": "2023-05-03T13:47:44.373561-04:00", "main_image": { "id": 414817, "url": "https://svs.gsfc.nasa.gov/vis/a020000/a020200/a020268/2017_02_NICER_NeutronStar_Lensing_Final_450_print.jpg", "filename": "2017_02_NICER_NeutronStar_Lensing_Final_450_print.jpg", "media_type": "Image", "alt_text": "NICER observes X-ray light from the surfaces of neutron stars. In these strong-gravity environments, light paths are distorted so that NICER can see emission from the star's far side, especially for smaller, denser stars. ", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }