{ "count": 82, "next": null, "previous": null, "results": [ { "id": 31394, "url": "https://svs.gsfc.nasa.gov/31394/", "result_type": "Hyperwall Visual", "release_date": "2026-05-06T12:00:00-04:00", "title": "NASA Studies Fire in Microgravity", "description": "Images from studies of fire's behavior in microgravity aboard the ISS.", "hits": 440 }, { "id": 31377, "url": "https://svs.gsfc.nasa.gov/31377/", "result_type": "Hyperwall Visual", "release_date": "2026-03-30T12:00:00-04:00", "title": "The Fluid Particles Experiment aboard the ISS", "description": "One of the experiments in the Microgravity Science Glovebox (MSG), observing how the particles cluster and form larger structures in microgravity.", "hits": 272 }, { "id": 14891, "url": "https://svs.gsfc.nasa.gov/14891/", "result_type": "Produced Video", "release_date": "2026-01-20T11:00:00-05:00", "title": "Far and Wide: Roman and Webb's Overlapping Roles in Understanding Our Universe", "description": "The four Roman/Webb Far and Wide videos that detail the differences between the two missions, why we need both, what they will do and how they will work together.", "hits": 397 }, { "id": 14917, "url": "https://svs.gsfc.nasa.gov/14917/", "result_type": "Infographic", "release_date": "2025-12-12T10:00:00-05:00", "title": "Roman Galactic Plane Survey", "description": "No description available.", "hits": 273 }, { "id": 14866, "url": "https://svs.gsfc.nasa.gov/14866/", "result_type": "Produced Video", "release_date": "2025-07-15T00:00:00-04:00", "title": "Cosmic Desktop & Phone Wallpapers", "description": "We can’t clean up your messy desktop, but we can provide a bit of beauty from the universe to act as a backdrop to it. Here you’ll find a collection of images from across the universe. Download these phone and desktop wallpapers for your screens. ||", "hits": 15036 }, { "id": 14793, "url": "https://svs.gsfc.nasa.gov/14793/", "result_type": "Produced Video", "release_date": "2025-05-27T20:55:00-04:00", "title": "Black Holes Vertical Video", "description": "This page collects Astrophysics vertical videos with black-hole-related content", "hits": 1609 }, { "id": 14835, "url": "https://svs.gsfc.nasa.gov/14835/", "result_type": "Produced Video", "release_date": "2025-05-09T15:00:00-04:00", "title": "What Happened During the Biggest Geomagnetic Storm in Over 20 Years", "description": "On May 10, 2024, the first G5 or “severe” geomagnetic storm in over two decades hit Earth. The event did not cause any catastrophic damages, but it did produce surprising effects on Earth. The storm, which has been called the best-documented geomagnetic storm in history, spread auroras to unusually low latitudes and produced effects spanning from the ground to near-Earth space. Data captured during this historic event will be analyzed for years to come, revealing new lessons about the nature of geomagnetic storms and how best to weather them.Learn more:• What NASA Is Learning from the Biggest Geomagnetic Storm in 20 Years• How NASA Tracked the Most Intense Solar Storm in Decades || ", "hits": 735 }, { "id": 14788, "url": "https://svs.gsfc.nasa.gov/14788/", "result_type": "Produced Video", "release_date": "2025-03-03T00:00:00-05:00", "title": "Roman Vertical Video", "description": "This page collects all the vertically-formatted videos produced for the Nancy Grace Roman Space Telescope mission. ||", "hits": 190 }, { "id": 5343, "url": "https://svs.gsfc.nasa.gov/5343/", "result_type": "Visualization", "release_date": "2024-09-23T00:00:00-04:00", "title": "NEX GDDP CMIP6 Historical and Predicted Global Maximum Monthly Temperature from 1950 - 2100", "description": "No description available.", "hits": 231 }, { "id": 40520, "url": "https://svs.gsfc.nasa.gov/gallery/solar-cycle25/", "result_type": "Gallery", "release_date": "2024-06-28T00:00:00-04:00", "title": "Solar Cycle 25", "description": "The Solar Cycle 25 Prediction Panel, an international group of experts co-sponsored by NASA and the National Oceanic and Atmospheric Administration (NOAA), announced that solar minimum occurred in December 2019, marking the start of Solar Cycle 25. Since then, the Sun’s activity has been steadily increasing as it approaches solar maximum — the peak of Solar Cycle 25.A new solar cycle comes roughly every 11 years. Over the course of each cycle, the Sun transitions from relatively calm to active and stormy, and then quiet again. At its peak, the Sun’s magnetic poles flip.Understanding the Sun’s behavior is an important part of life in our solar system. The Sun’s outbursts, including eruptions known as solar flares and coronal mass ejections, can disturb satellites and communication signals traveling around Earth. Scientists study the solar cycle so we can better understand and predict solar activity.", "hits": 611 }, { "id": 14576, "url": "https://svs.gsfc.nasa.gov/14576/", "result_type": "Visualization", "release_date": "2024-05-06T13:00:00-04:00", "title": "NASA Black Hole Visualization Takes Viewers Beyond the Brink", "description": "In this flight toward a supermassive black hole, labels highlight many of the fascinating features produced by the effects of general relativity along the way. This supercomputer visualization tracks a camera as it approaches, briefly orbits, and then crosses the event horizon — the point of no return — of a supersized black hole similar in mass to the one at the center of our galaxy. Credit: NASA's Goddard Space Flight Center/J. Schnittman and B. PowellMusic: “Tidal Force,” Thomas Daniel Bellingham [PRS], Universal Production Music“Memories” from Digital Juice“Path Finder,” Eric Jacobsen [TONO] and Lorenzo Castellarin [BMI], Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || 14576_BHPlunge_Explain_Still.jpg (3840x2160) [1.2 MB] || 14576_PageThumbnail.jpg (3840x2160) [1.2 MB] || 14576_PageThumbnail_searchweb.png (180x320) [85.0 KB] || 14576_PageThumbnail_thm.png (80x40) [9.6 KB] || 14576_BHPlunge_Explainer_1080.mp4 (1920x1080) [319.5 MB] || 14576_BHPlunge_Explainer_Captions.en_US.srt [2.5 KB] || 14576_BHPlunge_Explainer_Captions.en_US.vtt [2.4 KB] || 14576_BHPlunge_Explainer_4k.mp4 (3840x2160) [1.5 GB] || 14576_BHPlunge_Explainer_4kYouTube.mp4 (3840x2160) [3.0 GB] || 14576_BHPlunge_Explainer_ProRes_3840x2160_2997.mov (3840x2160) [12.8 GB] || ", "hits": 2122 }, { "id": 14491, "url": "https://svs.gsfc.nasa.gov/14491/", "result_type": "Produced Video", "release_date": "2023-12-26T00:00:00-05:00", "title": "Roman Hardware Highlights", "description": "This video, covering the second half of 2025, opens with a person entering NASA’s Goddard Space Flight Center’s largest clean room, the Spacecraft Systems Development and Integration Facility. The room is a class 10,000 clean room with over one million cubic feet of space.The outside half of Roman, called OSD, contains the solar panels and protective layers. The Deployable Aperture Cover, which protects the mirrors during launch and then unfolds to help shield them from sunlight does a test deployment. During this test, lines connect to it and pull upward to negate Earth’s gravitational forces, which Roman will not experience in space. Then the Solar Array Sun Shield panels deploy. There are four panels that move. They fold against the spacecraft to fit inside the rocket fairing and then deploy in space to make a large flat plane that both collects light to generate electricity and helps keep the rest of Roman cool.In preparation for additional testing, technicians put a clean tent over OSD and transport it out of the clean room. They push it into the acoustic test chamber where a six-foot-tall horn projects up to 150-decibel sound at varying frequencies. The other tests are on two vibration tables that shake Roman along all three axes: up/down, left/right, and forward/backward. Engineers attach hundreds of sensors and run tests of increasing intensity. During and after each test, they carefully study the data to make sure that Roman is behaving as they anticipated.While these tests occur, Roman’s inside half, containing the mirrors, instruments and support equipment, move into Goddard’s largest thermal vacuum chamber, the SES (Space Environment Simulator). This 40-foot-tall chamber can simulate the vacuum of space and the wide temperature range that Roman will experience there: from -310° Fahrenheit (-190° C) to 302° Fahrenheit (150° C). The move to the chamber happens without a clean tent, so the entire path was cleaned, and all the workers dress in full clean-room garb to ensure that no dirt contaminates the sensitive parts of the spacecraft. Once the two layers of doors are sealed, Roman spends 72 days inside running through tests at various temperatures and with equipment turned on to ensure that it works at low temperature in a vacuum. A special array installed above the mirror projects light that engineers use to test the optics and sensors.After leaving the SES chamber and returning to the SSDIF, Roman’s primary and secondary mirrors are carefully cleaned and inspected. It is a balance to get the mirrors as clean as possible while not cleaning too aggressively and damaging the delicate surfaces. The mirrors are cleaned both horizontally with a gentle vacuum cleaner and vertically with brushes. After this cleaning, every inch is visually inspected and photographed to record the exact optical characteristics. This was the last time the primary mirror would be accessible.Finally, in late November, Roman’s two halves are joined together to form the complete observatory. The process takes the better part of a day. Two guide poles are installed on the inside half to help direct OSD down onto it. At various times, the clearances between the two halves are only a few inches. With the observatory complete, it begins preparing for another round of deployments and testing.Music credit: “Our Journey Begins,” Dan Thiessen [BMI], Universal Production MusicWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || YTframe_Roman_Hardware_Highlights_SummerFall2025_3.jpg (1280x720) [473.7 KB] || Roman_HH_Summer-Fall2025_10mbps.mp4 (1920x1080) [185.0 MB] || Roman_HH_Summer-Fall2025_25mbps.mp4 (1920x1080) [452.7 MB] || Roman_HH_Summer-Fall2025_YT.mp4 (1920x1080) [880.2 MB] || RomanHHLate2025Captions.en_US.srt [588 bytes] || RomanHHLate2025Captions.en_US.vtt [570 bytes] || Roman_HH_Summer-Fall2025_ProRes_1920x1080_2997.mov (1920x1080) [2.5 GB] || ", "hits": 267 }, { "id": 14427, "url": "https://svs.gsfc.nasa.gov/14427/", "result_type": "Produced Video", "release_date": "2023-10-14T13:00:00-04:00", "title": "Study Eclipses With NASA", "description": "Solar eclipses are awe-inspiring experiences – but did you know you can help NASA study them? Many NASA discoveries are achieved with help from volunteer scientists like you! Here are some of the citizen science projects kicking off for the total solar eclipse on April 8, 2024.Visit https://science.nasa.gov/eclipses/citizen-science/ to learn more! || ", "hits": 64 }, { "id": 14429, "url": "https://svs.gsfc.nasa.gov/14429/", "result_type": "Produced Video", "release_date": "2023-10-14T13:00:00-04:00", "title": "NASA's Scientific Balloon Program", "description": "Since its establishment more than 30 years ago, NASA’s Balloon Program has provided high-altitude scientific balloon platforms for scientific and technological investigations, including fundamental scientific discoveries that contribute to our understanding of the Earth, the solar system, and the universe. This short video highlights several key discoveries made with NASA's scientific balloons.Visit nasa.gov/scientificballoons to learn more! || ", "hits": 93 }, { "id": 14407, "url": "https://svs.gsfc.nasa.gov/14407/", "result_type": "Produced Video", "release_date": "2023-09-14T11:00:00-04:00", "title": "NASA Summer 2023 Temperature Media Resources", "description": "The summer of 2023 was Earth’s hottest since global records began in 1880, according to an analysis by scientists at NASA’s Goddard Institute of Space Studies (GISS) in New York.The months of June, July, and August combined were 0.41 degrees Fahrenheit (0.23 degrees Celsius) warmer than any other summer in NASA’s record, and 2.1 degrees F (1.2 C) warmer than the average summer between 1951 and 1980. August alone was 2.2 F (1.2 C) warmer than the average. June through August is considered meteorological summer in the Northern Hemisphere. This new record comes as exceptional heat swept across much of the world, exacerbating deadly wildfires in Canada and Hawaii, and searing heat waves in South America, Japan, Europe, and the U.S., while likely contributing to severe rainfall in Italy, Greece, and Central Europe.NASA assembles its temperature record, known as GISTEMP, from surface air temperature data acquired by tens of thousands of meteorological stations, as well as sea surface temperature data from ship- and buoy-based instruments. This raw data is analyzed using methods that account for the varied spacing of temperature stations around the globe and for urban heating effects that could skew the calculations. || ", "hits": 190 }, { "id": 14299, "url": "https://svs.gsfc.nasa.gov/14299/", "result_type": "Produced Video", "release_date": "2023-03-10T10:00:00-05:00", "title": "What is Plasma?", "description": "Plasma makes up 99.9% of the visible universe, but what is it? This video discusses what plasma is, where it lives, and how NASA studies it. || ", "hits": 2068 }, { "id": 14290, "url": "https://svs.gsfc.nasa.gov/14290/", "result_type": "Produced Video", "release_date": "2023-02-17T12:00:00-05:00", "title": "The Heliosphere Has Ripples!", "description": "NASA’s Interstellar Boundary Explorer, or IBEX mission, has helped researchers learn something new about the heliosphere – the magnetic bubble created by the Sun that we live in. It turns out, the heliosphere has ripples! These ripples also change – likely due to influences from the Sun itself.The paper explaining the results was published in Nature Astronomy. || ", "hits": 85 }, { "id": 14245, "url": "https://svs.gsfc.nasa.gov/14245/", "result_type": "Produced Video", "release_date": "2022-12-05T10:00:00-05:00", "title": "The 50th Anniversary of Apollo 17", "description": "This video celebrates the 50th anniversary of Apollo 17 and discusses how data from LRO is not only helping scientists better understand scientific findings from that mission, but also helping pave the way for the future of human exploration on the Moon with Artemis.Music provided by Universal Production Music:“Beyond the Clouds” – CRZYSND & William Lyons“Golden Hour” - Max Cameron Concors“Hope and Tomorrow” – Wally Gagel & Xandy Barry“Great Delicacy” – David OhanaAdditional archival footage provided by Ben Feist & Stephen SlaterWatch this video on the NASA Goddard YouTube channel. || Apollo17_50thAnniversary_YouTubeHD.mp4 (1920x1080) [1.2 GB] || Apollo17_anniversary_Thumbnail.jpg (1920x1080) [895.6 KB] || Apollo17_anniversary_Thumbnail_print.jpg (1024x576) [349.5 KB] || Apollo17_anniversary_Thumbnail_searchweb.png (320x180) [101.3 KB] || Apollo17_anniversary_Thumbnail_thm.png (80x40) [7.2 KB] || Apollo17_50thAnniversary_MASTER.mov (1920x1080) [9.1 GB] || Apollo17_50thAnniversary_YouTubeHD.webm (1920x1080) [81.0 MB] || Apollo17_50thAnniversary_CAPTIONS.en_US.srt [16.4 KB] || Apollo17_50thAnniversary_CAPTIONS.en_US.vtt [15.6 KB] || ", "hits": 200 }, { "id": 5013, "url": "https://svs.gsfc.nasa.gov/5013/", "result_type": "Visualization", "release_date": "2022-08-19T13:00:00-04:00", "title": "Artemis III Landing Region Candidates", "description": "This narrated movie introduces Artemis III, reveals the mission's 13 candidate landing regions near the lunar South Pole, and briefly discusses some of the criteria that narrowed the selection to these regions.Music provided by Universal Production Music: Best Days to Come – Matteo Pagamici and Max Molling.This video can also be viewed on the NASA Goddard YouTube channel. || ArtemisIII_LandingRegions_print.jpg (1024x576) [130.2 KB] || ArtemisIII_LandingRegions_YouTubeHD.webm (1920x1080) [15.6 MB] || ArtemisIII_LandingRegions_YouTubeHD.mp4 (1920x1080) [230.8 MB] || ArtemisIII_LandingRegions_Captions.en_US.srt [3.0 KB] || ArtemisIII_LandingRegions_Captions.en_US.vtt [2.8 KB] || ArtemisIII_LandingRegions_MASTER.mov (1920x1080) [1.9 GB] || ", "hits": 259 }, { "id": 14066, "url": "https://svs.gsfc.nasa.gov/14066/", "result_type": "Produced Video", "release_date": "2022-01-13T11:00:00-05:00", "title": "Temperature Record 101: How We Know What We Know", "description": "2021 was tied for the sixth warmest year on NASA’s record, stretching more than a century. But, what is a temperature record?GISTEMP, NASA’s global temperature analysis, takes in millions of observations from instruments on weather stations, ships and ocean buoys, and Antarctic research stations, to determine how much warmer or cooler Earth is on average from year to year.Stretching back to 1880, NASA’s record shows a clear warming trend. However, individual weather events and La Niña — a pattern of cooler waters in the Pacific that was responsible for slightly cooling 2021’s average temperature — can affect individual years.Because the record is global, not every place on Earth experienced the sixth warmest year on record. Some places had record-high temperatures, and we saw record droughts, floods and fires around the globe. || ", "hits": 116 }, { "id": 13908, "url": "https://svs.gsfc.nasa.gov/13908/", "result_type": "Produced Video", "release_date": "2021-08-09T13:00:00-04:00", "title": "Exploring Asteroid Bennu Through Technology", "description": "Learn how “Tour of Asteroid Bennu” was created using data from OSIRIS-REx.Complete transcript available.Universal Production Music: “Spindrift” by Max Cameron Concors; “Unearthing Dark Secrets” by Andrew Joseph Carpenter and Mark Richmond PhillipsWatch this video on the NASA Goddard YouTube channel. || MakingTourBennuPreviewV4_print.jpg (1024x576) [133.2 KB] || MakingTourBennuPreviewV4.png (1920x1080) [1.9 MB] || MakingTourBennuPreviewV4.jpg (1920x1080) [753.9 KB] || MakingTourBennuPreviewV4_thm.png (80x40) [6.2 KB] || MakingTourBennuPreviewV4_searchweb.png (320x180) [81.7 KB] || TWITTER_720_13908_Making_Tour_Bennu_MASTER_twitter_720.mp4 (1280x720) [38.1 MB] || 13908_Making_Tour_Bennu_MASTER.webm (960x540) [87.9 MB] || FACEBOOK_720_13908_Making_Tour_Bennu_MASTER_facebook_720.mp4 (1280x720) [233.4 MB] || 13908_Making_Tour_Bennu_YouTube.mp4 (1920x1080) [990.0 MB] || 13908_Making_Tour_Bennu_Captions_V2.en_US.srt [6.2 KB] || 13908_Making_Tour_Bennu_Captions_V2.en_US.vtt [6.0 KB] || 13908_Making_Tour_Bennu_MASTER.mov (1920x1080) [3.0 GB] || ", "hits": 51 }, { "id": 13856, "url": "https://svs.gsfc.nasa.gov/13856/", "result_type": "Animation", "release_date": "2021-05-10T12:00:00-04:00", "title": "A Web Around Asteroid Bennu", "description": "OFFICIAL SELECTION – 2022 SIGGRAPH COMPUTER ANIMATION FESTIVALOver the course of two-and-a-half years, OSIRIS-REx wrapped asteroid Bennu in a complex web of observations. Complete transcript available.Universal Production Music: “Visionary” by Andy Blythe and Marten Joustra; “Babel” by Max Cameron ConcorsWatch this video on the NASA Goddard YouTube channel. || Web_Around_Bennu_Preview_SIGGRAPH_print.jpg (1024x576) [211.0 KB] || Web_Around_Bennu_Preview_SIGGRAPH.png (3840x2160) [7.3 MB] || Web_Around_Bennu_Preview_SIGGRAPH.jpg (3840x2160) [1.3 MB] || TWITTER_720_13856_Web_Around_Bennu_MASTER_twitter_720.mp4 (1280x720) [51.4 MB] || 13856_Web_Around_Bennu_MASTER.webm (960x540) [111.7 MB] || FACEBOOK_720_13856_Web_Around_Bennu_MASTER_facebook_720.mp4 (1280x720) [304.0 MB] || YOUTUBE_1080_13856_Web_Around_Bennu_MASTER_youtube_1080.mp4 (1920x1080) [394.4 MB] || 13856_Web_Around_Bennu_Captions.en_US.srt [5.8 KB] || 13856_Web_Around_Bennu_Captions.en_US.vtt [5.6 KB] || 13856_Web_Around_Bennu_YouTube_4K.mp4 (3840x2160) [3.5 GB] || 13856_Web_Around_Bennu_MASTER.mov (3840x2160) [33.6 GB] || ", "hits": 70 }, { "id": 4877, "url": "https://svs.gsfc.nasa.gov/4877/", "result_type": "Visualization", "release_date": "2021-04-05T15:30:00-04:00", "title": "Ecological insights from three decades of animal movement tracking across a changing Arctic", "description": "Animal movement tracking across the arctic on top of seasonal natural phenomena like changing vegetation, snow (white), and sea ice (light purple).This video is also available on our YouTube channel. || migration_final_024.1000_print.jpg (1024x576) [74.8 KB] || migration_final_024.1000_print_print.jpg (1024x576) [36.9 KB] || migration_final_024.1000_print_searchweb.png (320x180) [52.6 KB] || migration_final_024.1000_print_web.png (320x180) [52.6 KB] || migration_final_024.1000_print_thm.png (80x40) [4.3 KB] || migration_final_024_1080p59.94.webm (1920x1080) [17.1 MB] || migration_final_024_1080p59.94.mp4 (1920x1080) [103.0 MB] || north_america (3840x2160) [0 Item(s)] || captions_silent.30466.en_US.srt [43 bytes] || migration_final_024_2160p59.94.mp4 (3840x2160) [297.5 MB] || migration_final_024_1080p.hwshow [83 bytes] || ", "hits": 119 }, { "id": 13756, "url": "https://svs.gsfc.nasa.gov/13756/", "result_type": "Produced Video", "release_date": "2021-03-29T09:00:00-04:00", "title": "How NASA Data Helps Study Animals on the Move", "description": "Music: \"The Morning Mist,\" \"Big Data,\" Universal Production MusicNotes on footage:00:00 - 00:30 Provided by pond5.comAdditional wildlife footage provided by Max Planck Institute of Animal Behavior/Kolguev Goose Catching/Michael Wethington as indicated on screen.Complete transcript available. || caribouthumb.png (1651x922) [3.2 MB] || caribouthumb_print.jpg (1024x571) [260.1 KB] || caribouthumb_searchweb.png (320x180) [145.0 KB] || caribouthumb_thm.png (80x40) [11.9 KB] || MigrationGPMFinal_prores.mov (1920x1080) [2.7 GB] || MigrationGPMFinal_YT.mp4 (1920x1080) [318.8 MB] || MigrationGPMFinal_prores.webm (1920x1080) [22.3 MB] || Migration.en_US.srt [3.7 KB] || Migration.en_US.vtt [3.7 KB] || ", "hits": 55 }, { "id": 13764, "url": "https://svs.gsfc.nasa.gov/13764/", "result_type": "Produced Video", "release_date": "2020-12-03T06:00:00-05:00", "title": "Hubble Wraps Its 30th Year with Dazzling New Images Live Shots", "description": "** CLICK HERE FOR NEW CALDWELL IMAGE COLLECTION **** QUICK LINK TO NEW IMAGES ROLL-INS. **QUICK LINK TO ROLL-INS FOR THE LIVE SHOTS.Click here for more about the Hubble Space Telescope. Follow us on social media @NASAHubble to grab a front row seat to the universe.For the full collection of Hubble videos please see this Gallery page. || General_Advisory_Banner.png (6250x2085) [1.9 MB] || General_Advisory_Banner_print.jpg (1024x341) [86.9 KB] || General_Advisory_Banner_searchweb.png (320x180) [88.4 KB] || General_Advisory_Banner_thm.png (80x40) [6.7 KB] || ", "hits": 81 }, { "id": 13738, "url": "https://svs.gsfc.nasa.gov/13738/", "result_type": "Produced Video", "release_date": "2020-10-19T11:30:00-04:00", "title": "OSIRIS-REx Science and Engineering Briefing", "description": "Main title for T-1 OSIRIS-REx Science and Engineering Briefing || t-1_title.jpg (2878x1618) [2.5 MB] || t-1_title_searchweb.png (320x180) [58.9 KB] || t-1_title_thm.png (80x40) [4.2 KB] || ", "hits": 58 }, { "id": 13730, "url": "https://svs.gsfc.nasa.gov/13730/", "result_type": "Produced Video", "release_date": "2020-10-14T09:30:00-04:00", "title": "NASA’s Asteroid Heist: The Challenges of TAG", "description": "NASA's Asteroid Heist: The Challenges of TAG. Universal Production Music: \"Avenger\" by Max Cameron Concors; \"Fight for Earth\" by Peter NickallsWatch this video on the NASA Goddard YouTube channel. || 13730_COT_thumb1.jpg (3840x2160) [720.2 KB] || 13730_COT.04795_searchweb.png (320x180) [84.1 KB] || 13730_COT.04795_thm.png (80x40) [6.1 KB] || 13730_COT_VX-314873_facebook_720.mp4 (1280x720) [334.9 MB] || 13730_COT_VX-314873_twitter_720.mp4 (1280x720) [58.3 MB] || 13730_COT_VX-314873.webm (960x540) [126.4 MB] || 13730_COT_Large.mp4 (3840x2160) [347.1 MB] || 13730_COT.mp4 (3840x2160) [347.1 MB] || 13730_Caption.en_US.srt [7.6 KB] || 13730_Caption.en_US.vtt [7.3 KB] || ", "hits": 43 }, { "id": 40421, "url": "https://svs.gsfc.nasa.gov/gallery/the-solar-cycle/", "result_type": "Gallery", "release_date": "2020-09-14T00:00:00-04:00", "title": "The Solar Cycle", "description": "Solar Cycle 25 has begun. The Solar Cycle 25 Prediction Panel announced solar minimum occurred in December 2019, marking the transition into a new solar cycle. In a press event, experts from the panel, NASA, and NOAA discussed the analysis and Solar Cycle 25 prediction, and how the rise to the next solar maximum and subsequent upswing in space weather will impact our lives and technology on Earth.\nA new solar cycle comes roughly every 11 years. Over the course of each cycle, the star transitions from relatively calm to active and stormy, and then quiet again; at its peak, the Sun’s magnetic poles flip. Now that the star has passed solar minimum, scientists expect the Sun will grow increasingly active in the months and years to come.\n\nUnderstanding the Sun’s behavior is an important part of life in our solar system. The Sun’s outbursts—including eruptions known as solar flares and coronal mass ejections—can disturb the satellites and communications signals traveling around Earth, or one day, Artemis astronauts exploring distant worlds. Scientists study the solar cycle so we can better predict solar activity.", "hits": 44 }, { "id": 13664, "url": "https://svs.gsfc.nasa.gov/13664/", "result_type": "Produced Video", "release_date": "2020-07-16T08:00:00-04:00", "title": "ESA and NASA Release First Images From Solar Orbiter Mission", "description": "Scientists from ESA (European Space Agency) and NASA will present the first images captured by Solar Orbiter, the joint ESA/NASA mission to study the Sun, during an online news briefing at 8 a.m. EDT Thursday, July 16. Launched on Feb. 9, 2020, Solar Orbiter turned on all 10 of its instruments together for the first time in mid-June as it made its first close pass of the Sun. The flyby captured the closest images ever taken of the Sun. During the briefing, mission experts will discuss what these closeup images reveal about our star, including what we can learn from Solar Orbiter’s new measurements of particles and magnetic fields flowing from the Sun.The briefing will stream live at:https://www.nasa.gov/solarorbiterfirstlight/Participants in the call include:•Daniel Müller – Solar Orbiter Project Scientist at ESA•Holly R. Gilbert – Solar Orbiter Project Scientist at NASA•José Luis Pellón Bailón – Solar Orbiter Deputy Spacecraft Operations Manager at ESA•David Berghmans – Principal investigator of the Extreme Ultraviolet Imager (EUI) at the Royal Observatory of Belgium•Sami Solanki – Principal investigator of the Polarimetric and Helioseismic Imager (PHI) and director of the Max Planck Institute for Solar System Research•Christopher J. Owen – Principal investigator of the Solar Wind Analyser (SWA) at Mullard Space Science Laboratory, University College London•ESA’s first light images•ESA press release •NASA feature story || ", "hits": 257 }, { "id": 13488, "url": "https://svs.gsfc.nasa.gov/13488/", "result_type": "Produced Video", "release_date": "2019-12-09T00:00:00-05:00", "title": "Hubble Captures New Look At Ancient Comet From Beyond our Solar System Live Shots", "description": "Link to latest update and images as interstellar comet swings past the Sun.Quick link to canned interview with Jennifer Wiseman looking off camera.Quick link to canned interview with Max MutchlerQuick link to canned interview with Heidi HammelQuick link to canned interview with Padi BoydQuick link to AUDIO INTERVIEW with Max Mutchler || screengrab.png (1530x216) [576.7 KB] || screengrab_print.jpg (1024x144) [31.7 KB] || screengrab_searchweb.png (320x180) [87.2 KB] || screengrab_thm.png (80x40) [5.2 KB] || ", "hits": 32 }, { "id": 13349, "url": "https://svs.gsfc.nasa.gov/13349/", "result_type": "Produced Video", "release_date": "2019-10-21T10:00:00-04:00", "title": "Unusual Winds Drive a Small 2019 Ozone Hole", "description": "Every year, NASA and NOAA track the hole in the ozone layer over Antarctica as it grows to its annual winter maximum. This year, the hole was smaller than expected, due to an unusual weather pattern in the stratosphere. || ", "hits": 69 }, { "id": 13258, "url": "https://svs.gsfc.nasa.gov/13258/", "result_type": "Produced Video", "release_date": "2019-07-15T09:55:00-04:00", "title": "Hubble and Going Forward to the Moon", "description": "We are going forward to the Moon by 2024, but did you know that back in 2005, Dr. Jim Garvin and his team of scientists pointed the Hubble Space Telescope at our nearest celestial neighbor for a very important reason? The Hubble team used the telescope’s powerful instruments to work as a prospector for the Moon’s surface, searching for resources that would help future human-led missions mine and utilize those materials to “live off the land” of the Moon. Hubble’s lunar research led the way for future missions, such as the Lunar Reconnaissance Orbiter, helping men and women to go forward to the Moon by 2024!For more information, visit https://nasa.gov/hubble.Credit: NASA's Goddard Space Flight Center/Paul Morris.Music credits: \"Tracer\" by Max Cameron Concors [ASCAP]; Killer Tracks Production Music. “Insights” by Axel Coon [GEMA], Ralf Goebel [GEMA] Killer Tracks Production Music. “Transitions” by Ben Niblett [PRS], Jon Cotton [PRS] Killer Tracks Production Music. “Interstellar Spacecraft” by JC Lemay [SACEM] Killer Tracks Production Music. || ", "hits": 29 }, { "id": 12589, "url": "https://svs.gsfc.nasa.gov/12589/", "result_type": "Produced Video", "release_date": "2019-06-10T10:00:00-04:00", "title": "Getting SET - The Mission to Protect Satellites from Radiation", "description": "SET is the latest addition to NASA’s fleet of heliophysics observatories. NASA heliophysics missions study a vast interconnected system from the Sun to the space surrounding Earth and other planets, and to the farthest limits of the Sun’s constantly flowing stream of solar wind. SET’s observations provide key information on the Sun’s effects on our spacecraft, enabling further exploration of space. Watch this video on the NASA Goddard YouTube channel.Complete transcript available.Music credits: Night Moves by Max Cameron Concors, Wavelengths by Max Cameron Concors, and Alpha Helix by David Travis Edwards, Robert Anthony Navarro, Matthew St Laurent, and Christian Telford. End tag music credits: Radiant Energy by Chris Constantinou, Paul Frazer || SETThumb.jpg (1920x1080) [191.0 KB] || SETThumb_searchweb.png (320x180) [79.4 KB] || SETThumb_thm.png (80x40) [6.2 KB] || 12589_SET.V3.webm (1920x1080) [31.1 MB] || captions.en_US.srt [4.4 KB] || captions.en_US.vtt [4.2 KB] || 12589_SET.en_US.srt [4.2 KB] || 12589_SET.en_US.vtt [4.2 KB] || 12589_SET.V3.mov (1920x1080) [5.5 GB] || 12589_SET.V3.mp4 (1920x1080) [206.9 MB] || 12589_SET.V3FB1080.mp4 (1920x1080) [241.6 MB] || ", "hits": 71 }, { "id": 40359, "url": "https://svs.gsfc.nasa.gov/gallery/sdostillsand-graphics/", "result_type": "Gallery", "release_date": "2018-09-13T10:02:59-04:00", "title": "SDO: Stills and Graphics", "description": "No description available.", "hits": 334 }, { "id": 40357, "url": "https://svs.gsfc.nasa.gov/gallery/sdo4k-content/", "result_type": "Gallery", "release_date": "2018-09-13T09:22:28-04:00", "title": "SDO: 4k Content", "description": "Since 2010, the Solar Dynamics Observatory has taken 60 million images of the sun and 2 comets. Here are a few of our favorites.", "hits": 352 }, { "id": 40358, "url": "https://svs.gsfc.nasa.gov/gallery/sdopresentation-resources/", "result_type": "Gallery", "release_date": "2018-09-07T00:00:00-04:00", "title": "SDO: Presentation Resources", "description": "No description available.", "hits": 71 }, { "id": 30950, "url": "https://svs.gsfc.nasa.gov/30950/", "result_type": "Hyperwall Visual", "release_date": "2018-05-15T16:00:00-04:00", "title": "Spiral Galaxy Pair NGC 4302 and NGC 4298 from Hubble", "description": "Spiral galaxies NGC 4302 and NGC 498 are similar in shape, but appear different due to their different observed orientations. || ngc4302_ngc4298-hst-6576x7614_print.jpg (1024x1185) [166.6 KB] || ngc4302_ngc4298-hst-6576x7614.png (6576x7614) [84.3 MB] || ngc4302_ngc4298-hst-6576x7614_searchweb.png (320x180) [81.9 KB] || ngc4302_ngc4298-hst-6576x7614_thm.png (80x40) [5.4 KB] || spiral-galaxy-pair-ngc-4302-and-ngc-4298-from-hubble.hwshow [249 bytes] || ", "hits": 82 }, { "id": 12837, "url": "https://svs.gsfc.nasa.gov/12837/", "result_type": "Produced Video", "release_date": "2018-01-29T10:00:00-05:00", "title": "Explorer 1: Celebrating 60 Years of America in Space", "description": "Less than a lifetime ago, humankind just barely left the limits of Earth’s atmosphere. Who could have imagined that only 60 years later we would be touching the surface of the Sun, arriving at the most distant object humans have ever explored, and soon to be launching the world’s most powerful telescope to get a glimpse of the first galaxies born after the Big Bang? As NASA celebrates the 60th Anniversary of Explorer 1, the satellite that blazed the way for hundreds of missions to follow, some of the most ambitions explorations are yet to come. || ", "hits": 39 }, { "id": 12700, "url": "https://svs.gsfc.nasa.gov/12700/", "result_type": "Produced Video", "release_date": "2017-12-08T10:00:00-05:00", "title": "Can Data from Space Save Dolphins?", "description": "In an unprecedented collaboration between NASA’s Goddard Space Flight Center, the International Fund for Animal Welfare, and the Bureau of Ocean Energy Management, scientists from a cross-section of fields pooled massive data sets together to investigate the possible connection between space weather and marine mammal mass stranding events. Music credits: Long Travels - Boris Nonte, Gregg LehrmanSpiritual Migration - Giles Robert LambCrystal Sound Bath - James Alexander DormanThe Space Between - Max ConcorsInducing Waves - Ben Niblett, Jon CottonEnchanted - Gregg Lehrman, Boris Nonte, Daniel Louis WalterComplete transcript available.Watch this video on the NASA Goddard YouTube channel.Credit: NASA’s Goddard Space Flight Center/Genna Duberstein/Scott Wiessinger || StrandingsPosterFrameTextv03.jpg (3840x2160) [3.0 MB] || 12700_NASA_Data_and_Dolphins_ProRes_FINAL.mov (1920x1080) [8.1 GB] || 12700_NASA_Data_and_Dolphins_FINAL_youtube_hq.mov (1920x1080) [4.5 GB] || YOUTUBE_1080_12700_NASA_Data_and_Dolphins_FINAL_youtube_1080.mp4 (1920x1080) [1.1 GB] || 12700_NASA_Data_and_Dolphins_H264_FINAL.mp4 (1920x1080) [716.4 MB] || 12700_NASA_Data_and_Dolphins_FINAL_large.mp4 (1920x1080) [613.7 MB] || YOUTUBE_1080_12700_NASA_Data_and_Dolphins_FINAL_youtube_1080.webm (1920x1080) [66.9 MB] || 12700_data_and_dolphins.en_US.srt [11.6 KB] || 12700_data_and_dolphins.en_US.vtt [11.5 KB] || ", "hits": 29 }, { "id": 30855, "url": "https://svs.gsfc.nasa.gov/30855/", "result_type": "Hyperwall Visual", "release_date": "2017-02-27T15:00:00-05:00", "title": "The Sombrero Galaxy from Hubble", "description": "The majestic Sombrero Galaxy as observed by Hubble || sombrero-hst-c169-5760x3240_print.jpg (1024x576) [91.8 KB] || sombrero-hst-c169-5760x3240.png (5760x3240) [26.0 MB] || sombrero-hst-c169-5760x3240_searchweb.png (320x180) [66.7 KB] || sombrero-hst-c169-5760x3240_thm.png (80x40) [4.8 KB] || sombrero-hst-c169-30855.key [505.6 KB] || sombrero-hst-c169-30855.pptx [178.2 KB] || the-majestic-sombrero-galaxy-from-hubble-max.hwshow || ", "hits": 131 }, { "id": 30738, "url": "https://svs.gsfc.nasa.gov/30738/", "result_type": "Hyperwall Visual", "release_date": "2015-12-09T00:00:00-05:00", "title": "Dawn Takes a Closer Look at Occator", "description": "Occator crater on Ceres || PIA19889_print.jpg (1024x1024) [207.5 KB] || PIA19889_searchweb.png (320x180) [43.8 KB] || PIA19889_thm.png (80x40) [2.8 KB] || PIA19889.tif (1024x1024) [928.5 KB] || dawn_occator_crater_30738.key [3.5 MB] || dawn_occator_crater_30738.pptx [1016.0 KB] || dawn-takes-a-closer-look-at-occator.hwshow [275 bytes] || ", "hits": 40 }, { "id": 12068, "url": "https://svs.gsfc.nasa.gov/12068/", "result_type": "Produced Video", "release_date": "2015-11-19T11:00:00-05:00", "title": "Bigger and Later", "description": "The 2015 Antarctic ozone hole was one of the largest and latest forming holes in recent years. || c-1280.jpg (1280x720) [298.6 KB] || c-1024.jpg (1024x576) [195.3 KB] || c-1024_print.jpg (1024x576) [205.6 KB] || c-1024_searchweb.png (320x180) [93.8 KB] || c-1024_web.png (320x180) [93.8 KB] || c-1024_thm.png (80x40) [17.5 KB] || ", "hits": 31 }, { "id": 11915, "url": "https://svs.gsfc.nasa.gov/11915/", "result_type": "Produced Video", "release_date": "2015-07-21T11:00:00-04:00", "title": "Big Flare", "description": "NASA's Fermi satellite sees record flare from a black hole in a galaxy 5 billion light-years away. || cfinal-1024.jpg (1024x576) [159.5 KB] || cfinal-1920.jpg (1920x1080) [381.4 KB] || cfinal-1280.jpg (1280x720) [223.5 KB] || cfinal-1024_print.jpg (1024x576) [145.9 KB] || cfinal-1024_searchweb.png (320x180) [60.1 KB] || cfinal-1024_thm.png (80x40) [20.0 KB] || ", "hits": 86 }, { "id": 11844, "url": "https://svs.gsfc.nasa.gov/11844/", "result_type": "Produced Video", "release_date": "2015-05-14T11:00:00-04:00", "title": "Big Ozone Holes Going Extinct", "description": "NASA scientists say large ozone holes will be a thing of the past by 2040. || f-1280.jpg (1280x720) [253.0 KB] || f-1920.jpg (1920x1080) [402.2 KB] || f-1024_print.jpg (1024x576) [163.6 KB] || f-1024_print_print.jpg (1024x576) [163.6 KB] || f-1024_print_searchweb.png (320x180) [102.6 KB] || ", "hits": 31 }, { "id": 4275, "url": "https://svs.gsfc.nasa.gov/4275/", "result_type": "Visualization", "release_date": "2015-03-13T09:00:00-04:00", "title": "The Total Solar Eclipse of 20 March 2015", "description": "This narrated video shows visualizations of the March 20, 2015 solar eclipse from several vantage points in space, as well as an actual photo of a previous eclipse in 2012 taken by LRO from lunar orbit. Transcript. || G2015-026_ShadowOfTheMoon_print.jpg (1024x576) [96.1 KB] || G2015-026_ShadowOfTheMoon_searchweb.png (320x180) [60.2 KB] || G2015-026_ShadowOfTheMoon_thm.png (80x40) [5.0 KB] || G2015-026_ShadowOfTheMoon_youtube_hq.mov (1280x720) [35.7 MB] || G2015-026_ShadowOfTheMoon_1280x720.wmv (1280x720) [50.0 MB] || G2015-026_ShadowOfTheMoon_prores.mov (1280x720) [1.5 GB] || G2015-026_ShadowOfTheMoon_appletv.m4v (960x540) [46.5 MB] || G2015-026_ShadowOfTheMoon_appletv.webm (960x540) [14.4 MB] || G2015-026_ShadowOfTheMoon_appletv_subtitles.m4v (960x540) [46.5 MB] || G2015-026_ShadowOfTheMoon_nasaportal.mov (640x360) [34.1 MB] || G2015-026_ShadowOfTheMoon_ipod_lg.m4v (640x360) [20.0 MB] || Shadow.en_US.srt [1.9 KB] || G2015-026_ShadowOfTheMoon_ipod_sm.mp4 (320x240) [9.1 MB] || ", "hits": 80 }, { "id": 40176, "url": "https://svs.gsfc.nasa.gov/gallery/ozone-hole/", "result_type": "Gallery", "release_date": "2014-09-08T00:00:00-04:00", "title": "Ozone Hole", "description": "Visualizations and narrated videos about stratospheric ozone, for educators and the press.", "hits": 206 }, { "id": 11560, "url": "https://svs.gsfc.nasa.gov/11560/", "result_type": "Produced Video", "release_date": "2014-08-27T11:50:00-04:00", "title": "Summer 2014 Interns", "description": "All the videos of Goddard's summer 2014 interns can be found below. || ", "hits": 17 }, { "id": 11593, "url": "https://svs.gsfc.nasa.gov/11593/", "result_type": "Produced Video", "release_date": "2014-08-07T11:00:00-04:00", "title": "Sun Burst", "description": "On May 27, 2014, NASA’s Solar Dynamics Observatory, or SDO, spacecraft captured a burst of superheated gas, called plasma, gushing from the sun. Such eruptions happen frequently and result from the dynamic magnetic field lines that extend into the sun's atmosphere. Each event can release a huge amount of energy and send streams of million-degree plasma soaring outward. The ejected material either escapes the sun’s gravitational pull and ripples through space or falls back toward the surface. On this occasion, a river of plasma was seen rising and descending above the sun’s limb over a period of two hours. Watch the video to see the event unfold. || ", "hits": 122 }, { "id": 11584, "url": "https://svs.gsfc.nasa.gov/11584/", "result_type": "Produced Video", "release_date": "2014-07-08T11:00:00-04:00", "title": "Amazing Universe", "description": "Some of the most powerful and menacing spectacles happen in the blackest regions of space. To observe these displays, NASA has a fleet of space telescopes that peer deep into the cosmos. One such telescope is the Chandra X-ray Observatory. The spacecraft detects X-rays emitted from exploded stars, distant galaxies, and hot matter flowing into gigantic black holes. The telescope is so powerful it can read a stop sign from 12 miles away. Some of the X-ray light it has seen dates back to 12 billion years ago, shortly after the formation of the universe. Explore the images for a look at five far-off places revealed with the help of Chandra. || ", "hits": 125 }, { "id": 11479, "url": "https://svs.gsfc.nasa.gov/11479/", "result_type": "Produced Video", "release_date": "2014-04-24T00:00:00-04:00", "title": "Cold Atom Lab", "description": "Matter conceals a squiggly alter ego. While everyone knows matter’s everyday particle persona, it also has hidden wave properties, akin to sound or light. To explore these properties, scientists chill atoms to the max—or very close to it. As temperatures plummet to nearly absolute zero (-459.67°F), atoms start looking more like waves and less like particles. Droves of atomic wavelets can even start tuning in to the same frequency and wiggle as a single, coherent wave in what’s called a Bose-Einstein condensate. On Earth, gravity’s incessant tug makes it difficult to keep atoms trapped in a condensed state for long. But in 2016, researchers will be able to keep matter colder for longer in the microgravity environment of NASA’s Cold Atom Lab aboard the International Space Station. Watch the video to learn more about this exceedingly cool mission. || ", "hits": 114 }, { "id": 11244, "url": "https://svs.gsfc.nasa.gov/11244/", "result_type": "Produced Video", "release_date": "2013-04-03T00:00:00-04:00", "title": "Arctic Sea Ice Max 2013: An Interesting Year", "description": "After a record melt season, an Arctic cyclone, and a fascinating fracturing event, Arctic sea ice has reached its maximum extent for the year. || ", "hits": 7 }, { "id": 11150, "url": "https://svs.gsfc.nasa.gov/11150/", "result_type": "Produced Video", "release_date": "2013-01-01T00:00:00-05:00", "title": "Space Weather Forecast", "description": "The sun goes through a natural cycle approximately every 11 years, hitting peaks and valleys of solar activity. The cycle is marked by the increase and decrease of sunspots—visible as dark blemishes on the sun's surface and connected to eruptions such as solar flares and coronal mass ejections. The largest number of sunspots in any given solar cycle is designated as \"solar maximum,\" and this next peak of activity is predicted to occur in 2013. The eruptions that occur during solar maximum can't harm humans on Earth. But scientists observe this activity, what they call space weather, because it can affect satellites in orbit and disrupt power grids on the ground. Watch the movie to see the kind of gigantic, and often beautiful, eruptions we expect to see more of in 2013. || ", "hits": 36 }, { "id": 11072, "url": "https://svs.gsfc.nasa.gov/11072/", "result_type": "Produced Video", "release_date": "2012-11-26T10:00:00-05:00", "title": "SDO Solar Comparison October 2010 to October 2012", "description": "The sun goes through a natural solar cycle approximately every 11 years. The cycle is marked by the increase and decrease of sunspots — visible as dark blemishes on the sun's surface, or photosphere. The greatest number of sunspots in any given solar cycle is designated as \"solar maximum.\" The lowest number is \"solar minimum.\" The solar cycle provides more than just increased sunspots, however. In the sun's atmosphere, or corona, bright active regions appear, which are rooted in the lower sunspots. Scientists track the active regions since they are often the origin of eruptions on the sun such as solar flares or coronal mass ejections. The most recent solar minimum occurred in 2008, and the sun began to ramp up in January 2010, with an M-class flare (a flare that is 10 times less powerful than the largest flares, labeled X-class). The sun has continued to get more active, with the next solar maximum predicted for 2013. The journey toward solar maximum is evident in current images of the sun, showing a marked difference from those of 2010, with bright active regions dotted around the star. || ", "hits": 73 }, { "id": 11119, "url": "https://svs.gsfc.nasa.gov/11119/", "result_type": "Produced Video", "release_date": "2012-10-24T08:00:00-04:00", "title": "2012 Ozone Hole Max", "description": "An ozone hole forms above Antarctica every year. This year it reached its max on Sept. 22, 2012, but it is smaller than in the past because of usual variations in Antarctic weather conditions. The ozone hole reached its largest size six years ago, in 2006, when it covered more than 11 million square miles. World adherence to the Montreal Protocol-an international treaty that regulated the use of CFCs-has helped protect the ozone layer. Scientists expect the ozone layer to return to 1980 levels by 2050. || ", "hits": 54 }, { "id": 10740, "url": "https://svs.gsfc.nasa.gov/10740/", "result_type": "Produced Video", "release_date": "2011-04-07T09:00:00-04:00", "title": "When Neutron Stars Collide", "description": "Armed with state-of-the-art supercomputer models, scientists have shown that colliding neutron stars can produce the energetic jet required for a gamma-ray burst. Earlier simulations demonstrated that mergers could make black holes. Others had shown that the high-speed particle jets needed to make a gamma-ray burst would continue if placed in the swirling wreckage of a recent merger. Now, the simulations reveal the middle step of the process—how the merging stars' magnetic field organizes itself into outwardly directed components capable of forming a jet. The Damiana supercomputer at Germany's Max Planck Institute for Gravitational Physics needed six weeks to reveal the details of a process that unfolds in just 35 thousandths of a second—less than the blink of an eye.For the researchers' website, with more video and stills of their simulations, go here. || ", "hits": 509 }, { "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": 167 }, { "id": 3792, "url": "https://svs.gsfc.nasa.gov/3792/", "result_type": "Visualization", "release_date": "2010-10-28T00:00:00-04:00", "title": "Meet NASA's Earth-Observing Fleet", "description": "TRMM. Landsat 7. Terra. ACRIMSAT. EO-1. Jason 1. GRACE (twice). Aqua. ICESat. SORCE. Aura. CloudSat. CALIPSO. Jason 2. And, as of June 2011, Aquarius. None of the acronym-heavy Earth-observing satellites seen in the visualization below have achieved the name recognition of big-ticket NASA missions like Apollo or Hubble. But unmanned probes are quietly beaming down information that has transformed our understanding of how the Earth works and what we know of the human fingerprint on climate. Together they represent a mission to planet Earth as ambitious as any NASA has made to the Moon or Mars. One of the oldest functioning satellites in the fleet, TRMM, monitors precipitation; the newest, Aquarius, measures the salinity of the ocean. The next to launch in October 2011—NPP—will continue a suite of atmospheric, ocean, and land surface records initiated decades ago. The visualization shows the precise orbit tracks of twenty current and former Earth-observing satellites (not including Aquarius), as well as the International Space Station and Hubble. || ", "hits": 40 }, { "id": 3793, "url": "https://svs.gsfc.nasa.gov/3793/", "result_type": "Visualization", "release_date": "2010-10-28T00:00:00-04:00", "title": "Artificial World Captures Reality", "description": "A gold standard for supercomputer models that simulate Earth is the ability to recreate real events—snowstorms, tropical cyclones, long-term climate trends. By that benchmark, this 20-day run of one of the highest-resolution climate models in the world glitters. Called GEOS-5, the model was given data leading up to Feb. 2, 2010 and then predicted the atmosphere's response until Feb. 22, 2010 without any further input. The model simulated real weather events that took place during this period—two major snowstorms that struck the East Coast and a Pacific cyclone that formed out of intense convection in the tropics. A closer look at the simulation below reveals its complexity: 3-D cloud layers, the day-night cycle of humidity appearing and disappearing over the Amazon and streaky \"cloud streets\" that trail across the Atlantic from the U.S. coastline. || ", "hits": 61 }, { "id": 3723, "url": "https://svs.gsfc.nasa.gov/3723/", "result_type": "Visualization", "release_date": "2010-06-18T00:00:00-04:00", "title": "NCCS Hyperwall Show: GEOS-5 Modeled Clouds at 5-km Resolution (Flat Map)", "description": "This visualization shows clouds from a simulation using the Goddard Earth Observing System Model, Verison 5 (GEOS5). The global atmospheric simulation ran at a resolution of 5-km per grid cell and covered a period from Feb 2, 2010 through Feb 22, 2010. The results of the simulation were written out at 30 minute intervals. This is a high-resolution non-hydrostatic global model.This visualization was created for display on the NASA Center for Climate Simulation (NCCS) hyperwall. This is a set of tiled high definition displays consisting of 5 displays across by 3 displays down. The full resolution of all combined displays is 6840 pixels accross by 2304 pixels down. This movie was rendered at this high resolution, then diced up into images to be displayed on each screen.A similar, lower resolution visualization is available in entry #3724. The lower resolution version is for comparison to current operational model resolution output. When displaying these visualizations on the hyperwall, we sometimes show them in a checkerboard pattern with alternating 5-km and quarter-degree tiles for easy comparison. We chose to stretch the image to fit the hyperwall aspect rather than cropping or adding black bars. || ", "hits": 121 }, { "id": 3724, "url": "https://svs.gsfc.nasa.gov/3724/", "result_type": "Visualization", "release_date": "2010-06-18T00:00:00-04:00", "title": "NCCS Hyperwall Show: GEOS-5 Modeled Clouds at One Quarter Degree (28-km) Resolution (Flat Map)", "description": "This visualization shows clouds from a simulation using the Goddard Earth Observing System Model, Verison 5 (GEOS-5). The global atmospheric simulation ran at a resolution of one quarter degree (or about 28-km) per grid cell and covered a period from Feb 3, 2010 through Feb 13, 2010. The results of the simulation were written out at 30 minute intervals. This model is a high-resolution non-hydrostatic global model.This visualization was created for display on NASA's Center for Climate Simulation (NCCS) hyperwall. This is a set of tiled high definition displays consisting of 5 displays across by 3 displays down. The full resolution of all combined displays is 6840 pixels across by 2304 pixels down. This movie was rendered at this resolution, then diced up into images to be displayed on each screen.A similar, higher resolution visualization is available in entry #3723. This lower resolution version is for comparison to current operational model resolution output. || ", "hits": 24 }, { "id": 3725, "url": "https://svs.gsfc.nasa.gov/3725/", "result_type": "Visualization", "release_date": "2010-06-18T00:00:00-04:00", "title": "NCCS Hyperwall Show: Earth Observing Fleet with GEOS-5 Clouds", "description": "A newer version of this visualization can be found here.This visualization is an update to a previous visualization of NASA's Earth observing fleet of spacecraft. Also incuded in this version are a couple of commercial spacecraft as well as the International Space Station and the Hubble Space Telescope. The spacecraft ephemerides are from February 2010.The clouds are from a simulation using the Goddard Earth Observing System Model, Verison 5 (GEOS-5). The global atmospheric simulation ran at a resolution of 7-km per grid cell and covered a period from Feb 2, 2010 through Feb 22, 2010. The results of the simulation were written out at 30 minute intervals.This visualization was created for display on the NASA Center for Climate Simulation (NCCS) hyperwall. This is a set of tiled high definition displays consisting of 5 displays across by 3 displays down. The full resolution of all combined displays is 6840 pixels across by 2304 pixels down. This movie was rendered at this high resolution, then diced up into images to be displayed on each screen. || ", "hits": 106 }, { "id": 3722, "url": "https://svs.gsfc.nasa.gov/3722/", "result_type": "Visualization", "release_date": "2010-06-01T00:00:00-04:00", "title": "NCCS Hyperwall Show: Push in with GEOS-5 Modeled Clouds at 3.5-km Global Resolution and 10 Minute Interval", "description": "This visualization shows clouds from a simulation using the Goddard Earth Observing System Model, Verison 5 (GEOS-5). The global atmospheric simulation ran at 3.5 km per grid cell and covered a single day: January 2, 2009. The results of the simulation were written out at 10 minute intervals. Since there is only one day of simulation data, the sequence of clouds repeats several times. The white flash indicates the sequence is about to repeat.This version of the visualization was created for display on the NASA Center for Climate Science (NCCS.) hyperwall. This hyperwall is a set of 15 tiled high definition displays constisting of 5 displays across by 3 displays down. The full resolution of all combined displays is 6840 pixels accross by 2304 pixels down. This movie was rendered at full resolution, then diced up into images for display on each screen.This visualization is similar to a visualization shown at the Supercomputing 2009 conference available in entry #3659. The differences between that one and this one are: resolution, aspect ratio, and camera path (due to the aspect). || ", "hits": 18 }, { "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": 112 }, { "id": 3657, "url": "https://svs.gsfc.nasa.gov/3657/", "result_type": "Visualization", "release_date": "2009-11-16T00:00:00-05:00", "title": "GEOS-5 Modeled Clouds at 7-km Global Resolution", "description": "This visualization shows clouds from a simulation using the Goddard Earth Observing System Model, Verison 5 (GEOS-5). The global atmospheric simulation running at 7 km per grid cell covered the period from August 17, 2009 at 21 zulu, through August 26, 2009 at 21 zulu at 30 minute intervals. This visualization was designed to closely match a GOES satellite image for comparison purposes. || ", "hits": 42 }, { "id": 10237, "url": "https://svs.gsfc.nasa.gov/10237/", "result_type": "Produced Video", "release_date": "2008-05-20T00:00:00-04:00", "title": "HST SM4 — Astronauts Close HST Doors for Last Time", "description": "Animation showing the Hubble Servicing Mission Servicing Mission 4 crew closing Hubble's aft doors for the last time. Astronaut gives camera 'thumbs-up' sign. || ", "hits": 12 }, { "id": 3472, "url": "https://svs.gsfc.nasa.gov/3472/", "result_type": "Visualization", "release_date": "2008-04-21T08:00:00-04:00", "title": "Chesapeake Bay Flyover and Watershed Region", "description": "The watershed that drains into the Chesapeake Bay is a huge expanse that extends 64,000 miles into six states across North America (New York, Pensylvania, Maryland, Delaware, Virginia, and West Virginia) and the District of Columbia. This visualization overlays the full watershed onto a Landsat satellite visualization of the Bay area. The eight different distinctly colored regions indicate the Chesapeake's major subwatersheds. These subwatershed regions are: Susquehanna, Potomac, Patuxent, MD West Shore, Rapahhannock, Eastern Shore, James and York. This visualization is an extension of the Chesapeake Bay Flyover (#3446) in order to demonstrate the entire Chesapeake Bay Watershed region. The imagery utilized for this animation is a false-color Chesapeake Bay Landsat-7 Mosaic (#3473) composed of eight scenes acquired between 1999-2002, which were put together and color corrected to resemble natural looking colors.Data Notes:The mosaic was created by EarthSat under contract with NASA as part of the GeoCover 2000 product. All images used in GeoCover were acquired by Landsat-7 during the period of 1999-2002. The pixel size of the full resolution image represents 14.25 m on the ground. The Chesapeake Bay mosaic uses portions of eight Landsat-7 scenes. Below you will find a listing of the eight Landsat 7 images that were put together to create the composite image. Landsat scenes are organized by a Path and Row number according to the Worldwide Reference System. (To learn more about Landsat's Worldwide Reference System, please visit: http://landsat.gsfc.nasa.gov/about/wrs.html)Scenes used in the Chesapeake Bay mosaic: Landsat-7 WRS Path 15-Row 32 acquired on Oct. 05, 2001 Landsat-7 WRS Path 14-Row 32 acquired on Sept. 23, 1999 Landsat-7 WRS Path 15-Row 33 acquired on October 05, 2001 Landsat-7 WRS Path 14-Row 33 acquired on July 10, 2001Landsat-7 WRS Path 15-Row 34 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 34 acquired on July 10, 2001 Landsat-7 WRS Path 15-Row 35 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 35 acquired on Sept. 23, 1999 || ", "hits": 34 }, { "id": 3473, "url": "https://svs.gsfc.nasa.gov/3473/", "result_type": "Visualization", "release_date": "2008-04-21T08:00:00-04:00", "title": "Chesapeake Bay Landsat-7 Mosaic", "description": "The Chesapeake Bay Landsat-7 Mosaic is a composite of eight Landsat-7 scenes acquired during the period of 1999-2002, where each pixel represents about 15 square meters on the ground. The original data set was a false-color Landsat-7 (ETM+) image using bands 7,4,2 and the panchromatic band (8). Color correction has been applied to resemble natural looking colors.This page offers the full color-corrected data set for download and lets you look around at it using the online viewer. You can navigate the online image by using the zoom and pan controls at the bottom center of the image and use the inset red box at the upper left corner as a reference.This imagery data has been utilized to create the following animations:#3446: Chesapeake Bay Flyover#3472: Chesapeake Bay Flyover and Watershed Region #3477: Chesapeake Bay Watershed Region (short version) Data Notes:The mosaic was created by EarthSat under contract with NASA as part of the GeoCover 2000 product. All images used in GeoCover were acquired by Landsat-7 during the period of 1999-2002. The pixel size of the full resolution image represents 14.25 m on the ground. The Chesapeake Bay mosaic uses portions of eight Landsat-7 scenes. Below you will find a listing of the eight Landsat 7 images that were put together to create the composite image. Landsat scenes are organized by a Path and Row number according to the Worldwide Reference System. (To learn more about Landsat's Worldwide Reference System, please visit: http://landsat.gsfc.nasa.gov/about/wrs.html)Scenes used in the Chesapeake Bay mosaic: Landsat-7 WRS Path 15-Row 32 acquired on Oct. 05, 2001 Landsat-7 WRS Path 14-Row 32 acquired on Sept. 23, 1999 Landsat-7 WRS Path 15-Row 33 acquired on October 05, 2001 Landsat-7 WRS Path 14-Row 33 acquired on July 10, 2001Landsat-7 WRS Path 15-Row 34 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 34 acquired on July 10, 2001 Landsat-7 WRS Path 15-Row 35 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 35 acquired on Sept. 23, 1999 || ", "hits": 33 }, { "id": 3477, "url": "https://svs.gsfc.nasa.gov/3477/", "result_type": "Visualization", "release_date": "2008-04-21T08:00:00-04:00", "title": "Chesapeake Bay Watershed Region (short version)", "description": "The watershed that drains into the Chesapeake Bay is a huge expanse that extends 64,000 miles into five states across North America (New York, Pensylvania, Maryland, Delaware, Virginia) and the District of Columbia. This visualization overlays the full watershed onto a Landsat satellite visualization of the Bay area. The eight different distinctly colored regions indicate the Chesapeake's major subwatersheds. These subwatershed regions are: Susquehanna, Potomac, Patuxent, MD West Shore, Rapahhannock, Eastern Shore, James and York. This visualization contains just the last part of the Chesapeake Bay Flyover and Watershed Region (#3472) animation and demonstrates the entire Watershed without the Chesapeake Bay flyover. This animation highlights and labels each subwatershed in turn. Data Notes:The mosaic was created by EarthSat under contract with NASA as part of the GeoCover 2000 product. All images used in GeoCover were acquired by Landsat-7 during the period of 1999-2002. The pixel size of the full resolution image represents 14.25 m on the ground. The Chesapeake Bay mosaic uses portions of eight Landsat-7 scenes. Below you will find a listing of the eight Landsat 7 images that were put together to create the composite image. Landsat scenes are organized by a Path and Row number according to the Worldwide Reference System. (To learn more about Landsat's Worldwide Reference System, please visit: http://landsat.gsfc.nasa.gov/about/wrs.html)Scenes used in the Chesapeake Bay mosaic: Landsat-7 WRS Path 15-Row 32 acquired on Oct. 05, 2001 Landsat-7 WRS Path 14-Row 32 acquired on Sept. 23, 1999 Landsat-7 WRS Path 15-Row 33 acquired on October 05, 2001 Landsat-7 WRS Path 14-Row 33 acquired on July 10, 2001Landsat-7 WRS Path 15-Row 34 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 34 acquired on July 10, 2001 Landsat-7 WRS Path 15-Row 35 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 35 acquired on Sept. 23, 1999 || ", "hits": 90 }, { "id": 3380, "url": "https://svs.gsfc.nasa.gov/3380/", "result_type": "Visualization", "release_date": "2006-11-14T12:00:00-05:00", "title": "Great Zoom into Chicago, IL: The Adler Planetarium", "description": "Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves floating in virtual space just above the Adler Planetarium. The Adler Planetarium and Astronomy Museum in Chicago, Illinois was built in 1930 by philanthropist Max Adler. It is located on the shore of Lake Michigan near the Shedd Aquarium, the Field Museum of Natural History, and Soldier Field. || ", "hits": 54 }, { "id": 3381, "url": "https://svs.gsfc.nasa.gov/3381/", "result_type": "Visualization", "release_date": "2006-11-14T12:00:00-05:00", "title": "Great Zoom out of Chicago, IL: The Adler Planetarium", "description": "Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves floating in virtual space just above the Adler Planetarium. The Adler Planetarium and Astronomy Museum in Chicago, Illinois was built in 1930 by philanthropist Max Adler. It is located on the shore of Lake Michigan near the Shedd Aquarium, the Field Museum of Natural History, and Soldier Field. || ", "hits": 23 }, { "id": 90, "url": "https://svs.gsfc.nasa.gov/90/", "result_type": "Visualization", "release_date": "1995-11-07T12:00:00-05:00", "title": "SAMPEX - Yohkoh: Solar Modification of Relativistic Electrons in the Earth's Radiation Belts", "description": "The Solar Anomalous and Magnetospheric Particle Explorer, SAMPEX, measures fluxes of energetic particles from the sun, the Earth's magnetosphere, and cosmic ray sources over a broad range of energies. The four instruments aboard SAMPEX are the Low-Energy Ion Analyzer (LEICA), The Heavy Ion Large Telescope (HILT), The Mass Spectrometer Telescope (MAST), and the Proton-Electron Telescope (PET). The Soft X-ray Telescope on the Yohkoh satellite takes daily full-disk soft X-ray images of the Sun. Comparing data sets from the two satellites allows correlation of electron fluxes in the Earth's radiation belts with solar output. || ", "hits": 46 }, { "id": 89, "url": "https://svs.gsfc.nasa.gov/89/", "result_type": "Visualization", "release_date": "1995-01-01T12:00:00-05:00", "title": "SAMPEX - A Synoptic View of Earth's Electron Radiation Belts: North Pole Energetic Fluxes from HILT", "description": "The Solar Anomalous and Magnetospheric Particle Explorer, SAMPEX, measures fluxes of energetic particles from the sun, the Earth's magnetosphere, and cosmic ray sources over a broad range of energies. The four instruments aboard SAMPEX are the Low-Energy Ion Analyzer (LEICA), The Heavy Ion Large Telescope (HILT), The Mass Spectrometer Telescope (MAST), and the Proton-Electron Telescope (PET). || ", "hits": 49 }, { "id": 1385, "url": "https://svs.gsfc.nasa.gov/1385/", "result_type": "Visualization", "release_date": "1995-01-01T12:00:00-05:00", "title": "SAMPEX - A Synoptic View of Earth's Electron Radiation Belts: South Pole Energetic Fluxes from HILT", "description": "The Solar Anomalous and Magnetospheric Particle Explorer, SAMPEX, measures fluxes of energetic particles from the sun, the Earth's magnetosphere, and cosmic ray sources over a broad range of energies. The four instruments aboard SAMPEX are the Low-Energy Ion Analyzer (LEICA), The Heavy Ion Large Telescope (HILT), The Mass Spectrometer Telescope (MAST), and the Proton-Electron Telescope (PET). || ", "hits": 10 }, { "id": 1386, "url": "https://svs.gsfc.nasa.gov/1386/", "result_type": "Visualization", "release_date": "1995-01-01T12:00:00-05:00", "title": "SAMPEX - A Synoptic View of Earth's Electron Radiation Belts: North Pole Energetic Fluxes from PET", "description": "The Solar Anomalous and Magnetospheric Particle Explorer, SAMPEX, measures fluxes of energetic particles from the sun, the Earth's magnetosphere, and cosmic ray sources over a broad range of energies. The four instruments aboard SAMPEX are the Low-Energy Ion Analyzer (LEICA), The Heavy Ion Large Telescope (HILT), The Mass Spectrometer Telescope (MAST), and the Proton-Electron Telescope (PET). || ", "hits": 12 }, { "id": 1387, "url": "https://svs.gsfc.nasa.gov/1387/", "result_type": "Visualization", "release_date": "1995-01-01T12:00:00-05:00", "title": "SAMPEX - A Synoptic View of Earth's Electron Radiation Belts: South Pole Energetic Fluxes from PET", "description": "The Solar Anomalous and Magnetospheric Particle Explorer, SAMPEX, measures fluxes of energetic particles from the sun, the Earth's magnetosphere, and cosmic ray sources over a broad range of energies. The four instruments aboard SAMPEX are the Low-Energy Ion Analyzer (LEICA), The Heavy Ion Large Telescope (HILT), The Mass Spectrometer Telescope (MAST), and the Proton-Electron Telescope (PET). || ", "hits": 5 }, { "id": 39, "url": "https://svs.gsfc.nasa.gov/39/", "result_type": "Visualization", "release_date": "1994-02-12T12:00:00-05:00", "title": "Rayleigh-Taylor Instabilities in Supernovae Explosions: Density", "description": "The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was performed using the Piecewise-Parabolic Method for hydrodynamics on a two-dimensional spherical grid with rotational symmetry about the vertical axis and equatorial symmetry about the horizontal axis.The grid contained 800 zones in the radial direction and 400 zones in the angular diraction and was allowed to expand homologously with the explosion to maintain as high a resolution as possible in the unstable layer during the evolution. The following sequences show the evolution of the density distribution as well as the distribution of hydrogen, helium, and oxygen within the ejecta to illustrate the amount of mixing caused by the instability. Each sequence shows the evolution in two reference frames.In the first frame, the size of the plot expands with time as the grid expands. For the second reference frame, the size of the plot is kept fixed with the time so that more detail can be seen in the unstable layer. || ", "hits": 84 }, { "id": 40, "url": "https://svs.gsfc.nasa.gov/40/", "result_type": "Visualization", "release_date": "1994-02-12T12:00:00-05:00", "title": "Rayleigh-Taylor Instabilities in Supernovae Explosions: Hydrogen Mass Fraction", "description": "The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was performed using the Piecewise-Parabolic Method for hydrodynamics on a two-dimensional spherical grid with rotational symmetry about the vertical axis and equatorial symmetry about the horizontal axis.The grid contained 800 zones in the radial direction and 400 zones in the angular diraction and was allowed to expand homologously with the explosion to maintain as high a resolution as possible in the unstable layer during the evolution. The following sequences show the evolution of the density distribution as well as the distribution of hydrogen, helium, and oxygen within the ejecta to illustrate the amount of mixing caused by the instability. Each sequence shows the evolution in two reference frames.In the first frame, the size of the plot expands with time as the grid expands. For the second reference frame, the size of the plot is kept fixed with the time so that more detail can be seen in the unstable layer. || ", "hits": 60 }, { "id": 41, "url": "https://svs.gsfc.nasa.gov/41/", "result_type": "Visualization", "release_date": "1994-02-12T12:00:00-05:00", "title": "Rayleigh-Taylor Instabilities in Supernovae Explosions: Partial Density of Hydrogen", "description": "The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was performed using the Piecewise-Parabolic Method for hydrodynamics on a two-dimensional spherical grid with rotational symmetry about the vertical axis and equatorial symmetry about the horizontal axis.The grid contained 800 zones in the radial direction and 400 zones in the angular diraction and was allowed to expand homologously with the explosion to maintain as high a resolution as possible in the unstable layer during the evolution. The following sequences show the evolution of the density distribution as well as the distribution of hydrogen, helium, and oxygen within the ejecta to illustrate the amount of mixing caused by the instability. Each sequence shows the evolution in two reference frames.In the first frame, the size of the plot expands with time as the grid expands. For the second reference frame, the size of the plot is kept fixed with the time so that more detail can be seen in the unstable layer. || ", "hits": 46 }, { "id": 42, "url": "https://svs.gsfc.nasa.gov/42/", "result_type": "Visualization", "release_date": "1994-02-12T12:00:00-05:00", "title": "Rayleigh-Taylor Instabilities in Supernovae Explosions: Helium Mass Fraction", "description": "The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was performed using the Piecewise-Parabolic Method for hydrodynamics on a two-dimensional spherical grid with rotational symmetry about the vertical axis and equatorial symmetry about the horizontal axis.The grid contained 800 zones in the radial direction and 400 zones in the angular diraction and was allowed to expand homologously with the explosion to maintain as high a resolution as possible in the unstable layer during the evolution. The following sequences show the evolution of the density distribution as well as the distribution of hydrogen, helium, and oxygen within the ejecta to illustrate the amount of mixing caused by the instability. Each sequence shows the evolution in two reference frames.In the first frame, the size of the plot expands with time as the grid expands. For the second reference frame, the size of the plot is kept fixed with the time so that more detail can be seen in the unstable layer. || ", "hits": 49 }, { "id": 43, "url": "https://svs.gsfc.nasa.gov/43/", "result_type": "Visualization", "release_date": "1994-02-12T12:00:00-05:00", "title": "Rayleigh-Taylor Instabilities in Supernovae Explosions: Partial Density of Helium", "description": "The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was performed using the Piecewise-Parabolic Method for hydrodynamics on a two-dimensional spherical grid with rotational symmetry about the vertical axis and equatorial symmetry about the horizontal axis.The grid contained 800 zones in the radial direction and 400 zones in the angular diraction and was allowed to expand homologously with the explosionto maintain as high a resolution as possible in the unstable layer during the evolution. The following sequences show the evolution of the density distribution as well as the distribution of hydrogen, helium, and oxygen within the ejecta to illustrate the amount of mixing caused by the instability. Each sequence shows the evolution in two reference frames.In the first frame, the size of the plot expands with time as the grid expands. For the second reference frame, the size of the plot is kept fixed with the time so that more detail can be seen in the unstable layer. || ", "hits": 41 }, { "id": 44, "url": "https://svs.gsfc.nasa.gov/44/", "result_type": "Visualization", "release_date": "1994-02-12T12:00:00-05:00", "title": "Rayleigh-Taylor Instabilities in Supernovae Explosions: Oxygen Mass Fraction", "description": "The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was performed using the Piecewise-Parabolic Method for hydrodynamics on a two-dimensional spherical grid with rotational symmetry about the vertical axis and equatorial symmetry about the horizontal axis.The grid contained 800 zones in the radial direction and 400 zones in the angular diraction and was allowed to expand homologously with the explosion to maintain as high a resolution as possible in the unstable layer during the evolution. The following sequences show the evolution of the density distribution as well as the distribution of hydrogen, helium, and oxygen within the ejecta to illustrate the amount of mixing caused by the instability. Each sequence shows the evolution in two reference frames.In the first frame, the size of the plot expands with time as the grid expands. For the second reference frame, the size of the plot is kept fixed with the time so that more detail can be seen in the unstable layer. || ", "hits": 16 }, { "id": 45, "url": "https://svs.gsfc.nasa.gov/45/", "result_type": "Visualization", "release_date": "1994-02-12T12:00:00-05:00", "title": "Rayleigh-Taylor Instabilities in Supernovae Explosions: Partial Density of Oxygen", "description": "The following calculation shows the development and evolution of Rayleigh-Taylor instabilities which develop behind the supernova blast wave on a time scale of a few hours. The initial model was chosen to provide a good representation for the progenitor star for Supernova 1987A. The calculation was performed using the Piecewise-Parabolic Method for hydrodynamics on a two-dimensional spherical grid with rotational symmetry about the vertical axis and equatorial symmetry about the horizontal axis.The grid contained 800 zones in the radial direction and 400 zones in the angular diraction and was allowed to expand homologously with the explosion to maintain as high a resolution as possible in the unstable layer during the evolution. The following sequences show the evolution of the density distribution as well as the distribution of hydrogen, helium, and oxygen within the ejecta to illustrate the amount of mixing caused by the instability. Each sequence shows the evolution in two reference frames.In the first frame, the size of the plot expands with time as the grid expands. For the second reference frame, the size of the plot is kept fixed with the time so that more detail can be seen in the unstable layer. || ", "hits": 37 } ] }