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        {
            "id": 14922,
            "url": "https://svs.gsfc.nasa.gov/14922/",
            "result_type": "Produced Video",
            "release_date": "2025-12-01T14:00:00-05:00",
            "title": "Anatomy of an Active Galactic Nucleus",
            "description": "An active galactic nucleus, or AGN, is a supermassive black hole at the center of a galaxy that is consuming surrounding matter. Although the black hole itself is not visible, the structures around it emit light across many wavelengths. The artist’s concepts here highlight distinct structures that can accompany an AGN — the photon ring, accretion disk, corona, dusty torus, and relativistic jets. || ",
            "hits": 329
        },
        {
            "id": 14905,
            "url": "https://svs.gsfc.nasa.gov/14905/",
            "result_type": "Produced Video",
            "release_date": "2025-11-28T09:00:00-05:00",
            "title": "Black Hole Environments, Explained",
            "description": "If light can’t escape black holes, how do we know where they are? The regions around them tell an incredible story. From blazing coronas and swirling accretion disks to powerful jets that stretch millions of miles, these extreme environments reveal black holes' secrets and how these mysterious objects shape the universe.Join host Sophia Roberts as she talks with researchers Jenna Cann and Cecilia Chirenti at NASA Goddard about how scientists study these mysterious structures, the challenges of observing the unseeable, and the discoveries that continue to change our understanding of black holes.Credit: NASA’s Goddard Space Flight CenterMusic credits from Universal Production Music:\"Breaking the Barrier,\" David Bertrand Holland\"Dust Spirals,\" Alexandre Prodhomme\"Miniature Universe,\" Geoffrey Wilkinson\"Urban Decay,\" Sarah Natasha Penelope Warne\"Solar Plexus,\" Brandon Seliga\"Polygraph,\" Eric Chevalier\"The Mischief Makers,\" Joaquim Badia\"Maelstrom Dream,\" Lucie Rose\"The Truth Will Out,\" Chris Dony and Beth Perry || 14905_-_BHE_Thumbnail.jpg (1280x720) [947.8 KB] || 14905_-_Black_Hole_Environments_Explained_Captions.en_US.srt [15.7 KB] || 14905_-_Black_Hole_Environments_Explained_Captions.en_US.vtt [14.8 KB] || FINAL_-_14905_-_Black_Hole_Environments_Explained_1080.mp4 (1920x1080) [1.7 GB] || FINAL_-_14905_Black_Hole_Enviroments_Explained_4k.mp4 (3840x2160) [9.2 GB] || FINAL_-_14905_-_Black_Hole_Environments_Explained_ProRes.mov (3840x2160) [39.3 GB] || ",
            "hits": 180
        },
        {
            "id": 14753,
            "url": "https://svs.gsfc.nasa.gov/14753/",
            "result_type": "Produced Video",
            "release_date": "2025-01-13T10:14:00-05:00",
            "title": "Astronomers Track Jet Launch, Fluctuating X-Rays from Brink of Active Black Hole",
            "description": "Active galaxy 1ES 1927+654, circled, has exhibited extraordinary changes since 2018, when a major outburst occurred in visible, ultraviolet, and X-ray light. The galaxy harbors a central black hole weighing about 1.4 million solar masses and is located 270 million light-years away.Credit: Pan-STARRSUnannotated versions available.Image description: On a mottled black background, soft circles ranging in color from blue-white to orange represent stars in our own galaxy. At center, to the right of a chain of three bluish stars, lies a softer white circle set within a grayish ellipse whose longest dimension is oriented vertically. This is 1ES 1927+654, circled in green in this image. || 1ES1927_PanSTARRS_1080_circ.jpg (1920x1080) [597.2 KB] || 1ES1927_PanSTARRS_1080.jpg (1920x1080) [591.5 KB] || 1ES1927_PanSTARRS_2160.jpg (3840x2160) [1.7 MB] || 1ES1927_PanSTARRS_1080_circ_searchweb.png (320x180) [87.7 KB] || 1ES1927_PanSTARRS_1080_circ_thm.png [8.9 KB] || ",
            "hits": 160
        },
        {
            "id": 14463,
            "url": "https://svs.gsfc.nasa.gov/14463/",
            "result_type": "Produced Video",
            "release_date": "2024-04-30T11:00:00-04:00",
            "title": "XRISM Mission Captures Unmatched Data With Just 36 Pixels",
            "description": "Watch to learn more about how the Resolve instrument aboard XRISM captures extraordinary data on the make-up of galaxy clusters, exploded stars, and more using only 36 pixels.Credit: NASA’s Goddard Space Flight CenterMusic: \"Stop and Hide\" and \"Wading Through\" from Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || XRISM_36_Pixels_Still.jpg (1920x1080) [959.9 KB] || XRISM_36_Pixels_Still_searchweb.png (320x180) [94.7 KB] || XRISM_36_Pixels_Still_thm.png (80x40) [7.0 KB] || 14463_XRISM_36Pixels_Good.mp4 (1920x1080) [148.9 MB] || 14463_XRISM_36Pixels_Best.mp4 (1920x1080) [514.8 MB] || 14463_XRISM_36Pixels_Captions.en_US.srt [4.6 KB] || 14463_XRISM_36Pixels_Captions.en_US.vtt [4.4 KB] || 14463_XRISM_36Pixels_ProRes_1920x1080_2997.mov (1920x1080) [2.4 GB] || ",
            "hits": 53
        },
        {
            "id": 12657,
            "url": "https://svs.gsfc.nasa.gov/12657/",
            "result_type": "Produced Video",
            "release_date": "2017-08-08T13:00:00-04:00",
            "title": "AGN Feedback in Markarian 573",
            "description": "Animated illustration of the feedback process thought to be occurring in active galactic nuclei (AGN).Credit: NASA's Goddard Space Flight Center || AGN_Sculpting_Still_print.jpg (1024x576) [54.9 KB] || AGN_Sculpting_Still.jpg (3840x2160) [355.6 KB] || AGN_Sculpting_Still_searchweb.png (320x180) [31.4 KB] || AGN_Sculpting_Still_thm.png (80x40) [3.0 KB] || 12657_AGN_Feedback-Sculpting_1080p.mov (1920x1080) [33.5 MB] || 12657_AGN_Feedback-Sculpting_1080p.webm (1920x1080) [2.7 MB] || 3840x2160_16x9_30p (3840x2160) [32.0 KB] || 12657_AGN_Feedback-Sculpting_4K_Good.mov (3840x2160) [91.3 MB] || 12657_AGN_Feedback-Sculpting_ProRes_3840x2160_30.mov (3840x2160) [708.8 MB] || ",
            "hits": 394
        },
        {
            "id": 12297,
            "url": "https://svs.gsfc.nasa.gov/12297/",
            "result_type": "Produced Video",
            "release_date": "2016-07-06T13:00:00-04:00",
            "title": "Hitomi Measures X-ray Winds of the Perseus Galaxy Cluster",
            "description": "A revolutionary instrument aboard the ill-fated Hitomi satellite returned the most detailed measurements yet made of the million-degree atmosphere at the core of a galaxy cluster. Watch the video to learn more.Credit: NASA's Goddard Space Flight CenterMusic: \"Natural Awe\" and \"To the Tower\" from Killer TracksComplete transcript available. || Astro-H_Calorimeter-STILL_print.jpg (1024x576) [64.7 KB] || Astro-H_Calorimeter-STILL_searchweb.png (320x180) [55.3 KB] || Astro-H_Calorimeter-STILL_web.png (320x180) [55.3 KB] || Astro-H_Calorimeter-STILL_thm.png (80x40) [5.4 KB] || Astro-H_Calorimeter-STILL.tiff (3840x2160) [63.3 MB] || 12297_Hitomi_SXS_FINAL_ipod_sm.mp4 (320x240) [43.0 MB] || 12297_Hitomi_SXS_FINAL_lowres.mp4 (480x272) [33.7 MB] || PRORES_B-ROLL_12297_Hitomi_SXS_FINAL_prores.webm [0 bytes] || PRORES_B-ROLL_12297_Hitomi_SXS_FINAL_prores.mov (1280x720) [1.7 GB] || NASA_TV_12297_Hitomi_SXS_FINAL.mpeg (1280x720) [796.7 MB] || APPLE_TV_12297_Hitomi_SXS_FINAL_appletv-2.m4v (1280x720) [127.0 MB] || 12297_Hitomi_SXS_FINAL_youtube_hq.mov (1920x1080) [1.1 GB] || 12297_Hitomi_SXS_FINAL_ProRes_1920x1080_2997.mov (1920x1080) [3.1 GB] || ",
            "hits": 106
        },
        {
            "id": 30680,
            "url": "https://svs.gsfc.nasa.gov/30680/",
            "result_type": "Hyperwall Visual",
            "release_date": "2015-09-25T13:00:00-04:00",
            "title": "Active Galaxy Hercules A: Visible & Radio Comparison",
            "description": "A comparison of visible and radio views of the active galaxy Hercules A || hercules_a-example_frame-1920x1080.png (1920x1080) [532.7 KB] || hercules_a-example_frame-1920x1080.jpg (1920x1080) [67.4 KB] || hercules_a-example_frame-1920x1080_searchweb.png (180x320) [25.1 KB] || hercules_a-example_frame-1920x1080_thm.png (80x40) [3.2 KB] || hercules_a-b-1920x1080.m4v (1920x1080) [8.7 MB] || hercules_a-b-1920x1080.wmv (1920x1080) [21.8 MB] || hercules_a-b-1920x1080p30.mov (1920x1080) [21.7 MB] || hercules_a-b-1280x720.m4v (1280x720) [3.4 MB] || hercules_a-b-1280x720.wmv (1280x720) [11.8 MB] || hercules_a-b-1920x1080p30.webm (1920x1080) [4.1 MB] || hercules_a-b-30680.key [6.0 MB] || hercules_a-b-30680.pptx [3.6 MB] || active-galaxy-hercules-a.hwshow [217 bytes] || ",
            "hits": 73
        },
        {
            "id": 11342,
            "url": "https://svs.gsfc.nasa.gov/11342/",
            "result_type": "Produced Video",
            "release_date": "2013-08-21T13:00:00-04:00",
            "title": "Fermi's Five-year View of the Gamma-ray Sky",
            "description": "This all-sky view shows how the sky appears at energies greater than 1 billion electron volts (GeV) according to five years of data from NASA's Fermi Gamma-ray Space Telescope. (For comparison, the energy of visible light is between 2 and 3 electron volts.) The image contains 60 months of data from Fermi's Large Area Telescope; for better angular resolution, the map shows only gamma rays converted at the front of the instrument's tracker. Brighter colors indicate brighter gamma-ray sources. The map is shown in galactic coordinates, which places the midplane of our galaxy along the center. The five-year Fermi map is available in multiple resolutions below, along with additional plots containing reference information and identifying some of the brightest sources. || ",
            "hits": 152
        },
        {
            "id": 10807,
            "url": "https://svs.gsfc.nasa.gov/10807/",
            "result_type": "Produced Video",
            "release_date": "2011-08-24T13:00:00-04:00",
            "title": "NASA's Swift Satellite Spots Black Hole Devouring A Star",
            "description": "In late March 2011, NASA's Swift satellite alerted astronomers to intense and unusual high-energy flares from a new source in the constellation Draco. They soon realized that the source, which is now known as Swift J1644+57, was the result of a truly extraordinary event — the awakening of a distant galaxy's dormant black hole as it shredded and consumed a star. The galaxy is so far away that the radiation from the blast has traveled 3.9 billion years before reaching Earth. Most galaxies, including our own, possess a central supersized black hole weighing millions of times the sun's mass. According to the new studies, the black hole in the galaxy hosting Swift J1644+57 may be twice the mass of the four-million-solar-mass black hole lurking at the center of our own Milky Way galaxy. As a star falls toward a black hole, it is ripped apart by intense tides. The gas is corralled into a disk that swirls around the black hole and becomes rapidly heated to temperatures of millions of degrees. The innermost gas in the disk spirals toward the black hole, where rapid motion and magnetism creates dual, oppositely directed \"funnels\" through which some particles may escape. Particle jets driving matter at velocities greater than 80-90 percent the speed of light form along the black hole's spin axis. In the case of Swift J1644+57, one of these jets happened to point straight at Earth.Theoretical studies of tidally disrupted stars suggested that they would appear as flares at optical and ultraviolet energies. The brightness and energy of a black hole's jet is greatly enhanced when viewed head-on. The phenomenon, called relativistic beaming, explains why Swift J1644+57 was seen at X-ray energies and appeared so strikingly luminous. When first detected on March 28, the flares were initially assumed to signal a gamma-ray burst, one of the nearly daily short blasts of high-energy radiation often associated with the death of a massive star and the birth of a black hole in the distant universe. But as the emission continued to brighten and flare, astronomers realized that the most plausible explanation was the tidal disruption of a sun-like star seen as beamed emission. || ",
            "hits": 251
        },
        {
            "id": 10795,
            "url": "https://svs.gsfc.nasa.gov/10795/",
            "result_type": "Produced Video",
            "release_date": "2011-06-10T14:00:00-04:00",
            "title": "Nearby Galaxy Boasts Two Monster Black Holes, Both Active",
            "description": "A study using NASA's Swift satellite and the Chandra X-ray Observatory has found a second supersized black hole at the heart of an unusual nearby galaxy already known to be sporting one. The galaxy, which is known as Markarian 739 or NGC 3758, lies 425 million light-years away toward the constellation Leo. Only about 11,000 light-years separate the two cores, each of which contains a black hole gorging on infalling gas. Astronomers refer to galaxy centers exhibiting such intense emission as active galactic nuclei (AGN). Yet as common as monster black holes are, only about one percent of them are currently powerful AGN. Binary AGN are rarer still: Markarian 739 is only the second identified within half a billion light-years.Many scientists think that disruptive events like galaxy collisions trigger AGN to switch on by sending large amounts of gas toward the black hole. As the gas spirals inward, it becomes extremely hot and radiates huge amounts of energy. || ",
            "hits": 173
        },
        {
            "id": 10770,
            "url": "https://svs.gsfc.nasa.gov/10770/",
            "result_type": "Produced Video",
            "release_date": "2011-05-20T09:00:00-04:00",
            "title": "Radio Telescopes Capture Best-Ever Snapshot of a Black Hole's Jets",
            "description": "Centaurus A is a giant elliptical active galaxy 12 million light years away. Radio and X-ray images reveal features associated with jets emanating from near the galaxy's central supermassive black hole, which has a mass of 55 million suns. Now, the TANAMI project has provided the best-ever view of these jets. In the radio image of the galaxy's core, the black hole is invisible but the jets show in great detail. Features as small as 15 light-days across can be resolved. The powerful jets feed vast lobes of radio-emitting gas that reach far beyond the visible galaxy. || ",
            "hits": 93
        },
        {
            "id": 10698,
            "url": "https://svs.gsfc.nasa.gov/10698/",
            "result_type": "Produced Video",
            "release_date": "2011-01-20T09:00:00-05:00",
            "title": "NASA's Swift Finds 'Missing' Active Galaxies",
            "description": "Most large galaxies contain a giant central black hole. In an active galaxy, matter falling toward the supermassive black hole powers high-energy emissions so intense that two classes of active galaxies, quasars and blazars, rank as the most luminous objects in the universe. Thick clouds of dust and gas near the central black hole screens out ultraviolet, optical and low-energy (or soft) X-ray light. Although there are many different types of active galaxy, astronomers explain the different observed properties based on how the galaxy angles into our line of sight. We view the brightest ones nearly face on, but as the angle increases, the surrounding ring of gas and dust absorbs increasing amounts of the black hole's emissions. || ",
            "hits": 143
        },
        {
            "id": 10549,
            "url": "https://svs.gsfc.nasa.gov/10549/",
            "result_type": "Produced Video",
            "release_date": "2010-05-26T10:00:00-04:00",
            "title": "Swift Survey Finds 'Smoking Gun' of Black Hole Activation",
            "description": "Astronomers using X-ray data from an ongoing survey by NASA's Swift satellite have solved a decades-long mystery. Why, when most galaxies host giant black holes in their centers, do only about one percent of them emit vast amounts of energy? The new findings confirm that the black holes \"light up\" when galaxies collide — and may offer insight into the future behavior of the black hole in our own galaxy. The intense emission from galaxy centers, or nuclei, arises near a supermassive black hole containing between a million and a billion times the sun's mass. Giving off as much as 10 billion times the sun's energy, some of these active galactic nuclei (AGN) — a class that includes quasars and blazars — are the most luminous objects in the universe. || ",
            "hits": 95
        },
        {
            "id": 20135,
            "url": "https://svs.gsfc.nasa.gov/20135/",
            "result_type": "Animation",
            "release_date": "2008-04-16T00:00:00-04:00",
            "title": "Gamma Rays in Active Galactic Nuclei",
            "description": "This animation shows how gamma rays possibly form in Active Galactic Nuclei. || ",
            "hits": 124
        },
        {
            "id": 3439,
            "url": "https://svs.gsfc.nasa.gov/3439/",
            "result_type": "Visualization",
            "release_date": "2007-09-13T00:00:00-04:00",
            "title": "Simulations of the Gamma-Ray Sky",
            "description": "The Gamma-Ray Large Area Space Telescope (GLAST) will observe the sky in gamma-rays with energies between 10 million electron volts (MeV) to 300 billion electron volts (GeV) (a photon of visible light is roughly 2 electron volts). At these energies, the detectors will receive roughly 2 photons every second. At these energies, the objects visible will be active galaxies, quasars, pulsars, and gamma-ray bursts. This visualization is generated from one year of simulated photon event-lists using known sources. These event lists are used for testing the various data analysis software being developed for the project. Due to the extremely low event rate, it takes about one week of event accumulation to see structure in the sky. To generate the 600+ frames of this visualization, the event lists were box-car averaged for a duration of one week for each frame, and each frame shifted 50,000 seconds in time from the previous frame. The low angular resolution of gamma-ray detectors makes point sources appear spread out in the sky. In these maps, the color of each pixel represents the number of photons accumulated in that pixel (over an energy range of 10MeV-300GeV). Horizontally, across the center of the map, is the diffuse emission from the plane of our own Milky Way galaxy. The images are projected in galactic coordinates with a plate carrée projection so there is significant distortion with increasing latitude above the galactic disk. This emission in the galactic plane is created by pulsars and supernova remnants. Located away from this plane is emission from active galaxies and high-velocity pulsars. Occasionally, a bright spot appears which can be a gamma-ray burst or quasar in an active state. || ",
            "hits": 51
        }
    ]
}