{ "count": 82, "next": null, "previous": null, "results": [ { "id": 5375, "url": "https://svs.gsfc.nasa.gov/5375/", "result_type": "Visualization", "release_date": "2025-08-07T14:00:00-04:00", "title": "Carrington Class Coronal Mass Ejection - ENLIL Simulation of A Series of CMEs", "description": "A series of visualizations of the simulation of a series of CMEs between July 2012 and August 2012, including a carrington class coronal mass ejection that hit STEREO-A.", "hits": 331 }, { "id": 5443, "url": "https://svs.gsfc.nasa.gov/5443/", "result_type": "Visualization", "release_date": "2024-12-17T00:00:00-05:00", "title": "Heliophysics Sentinels 2024", "description": "There have been some changes since the 2022 Heliophysics Fleet. AIM and ICON have been decommissioned while two other instruments have been added. AWE is an instrument mounted on the ISS, and RAD is a particle detector on the Curiosity Mars rover. As of Winter 2024, here's a tour of the NASA Heliophysics fleet from the near-Earth satellites out to the Voyagers beyond the heliopause. || ", "hits": 75 }, { "id": 5165, "url": "https://svs.gsfc.nasa.gov/5165/", "result_type": "Visualization", "release_date": "2024-01-05T00:00:00-05:00", "title": "STEREO - The Second Time Around...", "description": "In mid-August 2023, the still-operational STEREO-A (STEREO-B went offline in October 2014) passed Earth for the first time since its launch 17 years ago. See also STEREO-A Returns by Earth.While STEREO-B is no longer available, it is possible to construct stereo imagery of the Sun using STEREO-A with Solar Dynamics Observatory (SDO). Here we present a series of images for corresponding filters between the two missions which can be used for stereo viewing.Color (SDO color table) Left/Right Image PairsIn this section, we present frame-synchronized left eye (STEREO-A) and right eye (SDO) for the specified ultraviolet filter. They are provided as separate movie and frame-sets to maximize flexibility for the target viewing technology. Time stamps are provided as separate image files for compositing if desired. If you match frame numbers for the image sets for a specific filter, you will have images closest in time for apropriate left/right eye pairing.171 Angstrom filter || ", "hits": 79 }, { "id": 5136, "url": "https://svs.gsfc.nasa.gov/5136/", "result_type": "Visualization", "release_date": "2023-08-22T00:00:00-04:00", "title": "STEREO-A Returns by Earth", "description": "The Solar Terrestrial Relations Observatory (STEREO) mission was launched on October 25, 2006, with the purpose of tracing the flow of energy and matter from the Sun to Earth. The STEREO mission began with two spacecraft: STEREO-A and STEREO-B. Each was launched into Sun-orbiting trajectories - STEREO-A moving ahead of Earth, and STEREO-B moving behind Earth (STEREO's Routes to Solar Orbits). In mid-August 2023, the still-operational STEREO-A (STEREO-B went offline in October 2014) will pass Earth for the first time since its launch 17 years ago. Like race cars driving different speeds around a circular track, STEREO-A is traveling slightly faster than Earth around the Sun. After launch, STEREO-A pulled ahead of Earth and extended its lead a little bit more with each orbit. Now, STEREO-A’s lead is so great that it is catching up to Earth from behind and is about to “lap” Earth, having completed 18 circuits around the Sun while Earth completed just 17. || ", "hits": 108 }, { "id": 4898, "url": "https://svs.gsfc.nasa.gov/4898/", "result_type": "Visualization", "release_date": "2022-11-23T00:00:00-05:00", "title": "Heliophysics Sentinels 2022", "description": "There has been one significant change since the 2020 Heliophysics Fleet. SET has been decommissioned. As of Fall 2022, here's a tour of the NASA Heliophysics fleet from the near-Earth satellites out to the Voyagers beyond the heliopause.Excepting the Voyager missions, the satellite orbits are color coded for their observing program:Magenta: TIM (Thermosphere, Ionosphere, Mesosphere) observationsYellow: solar observations and imageryCyan: Geospace and magnetosphereViolet: Heliospheric observations || ", "hits": 40 }, { "id": 4970, "url": "https://svs.gsfc.nasa.gov/4970/", "result_type": "Visualization", "release_date": "2022-02-25T10:00:00-05:00", "title": "The Many Eyes on the Parker Solar Probe Perihelion (February 2022)", "description": "This visualization opens with a top-down view, then transtions to an oblique view of the inner solar system with the various solar-observing missions conducting coordinated observations of the plasma environment. This version displays the imaging instrument camera frustums and solar magnetic field alignments - the 'glyph' version. A version with just the orbits, no 'glyphs' is available in the [Download Options] menu. || SolarSynergiesPlus.Encounter2022FebTop2Side.HAE.AU.glyphs_CRTT.HD1080.01300_print.jpg (1024x576) [123.3 KB] || SolarSynergiesPlus.Encounter2022FebTop2Side.HAE.AU.glyphs_CRTT.HD1080.01300_searchweb.png (320x180) [78.9 KB] || SolarSynergiesPlus.Encounter2022FebTop2Side.HAE.AU.glyphs_CRTT.HD1080.01300_thm.png (80x40) [5.2 KB] || Encounter2022FebTop2Side (1920x1080) [0 Item(s)] || Encounter2022FebTop2Side.glyphs (1920x1080) [0 Item(s)] || SolarSynergiesPlus.Encounter2022FebTop2Side.HD1080_p30.mp4 (1920x1080) [47.0 MB] || SolarSynergiesPlus.Encounter2022FebTop2Side.glyphs.HD1080_p30.mp4 (1920x1080) [60.7 MB] || SolarSynergiesPlus.Encounter2022FebTop2Side.HD1080_p30.webm (1920x1080) [9.7 MB] || Encounter2022FebTop2Side (3840x2160) [0 Item(s)] || Encounter2022FebTop2Side.glyphs (3840x2160) [0 Item(s)] || SolarSynergiesPlus.Encounter2022FebTop2Side.UHD2160_p30.mp4 (3840x2160) [143.6 MB] || SolarSynergiesPlus.Encounter2022FebTop2Side.glyphs.UHD2160_p30.mp4 (3840x2160) [176.4 MB] || SolarSynergiesPlus.Encounter2022FebTop2Side.HD1080_p30.mp4.hwshow [220 bytes] || ", "hits": 86 }, { "id": 4887, "url": "https://svs.gsfc.nasa.gov/4887/", "result_type": "Visualization", "release_date": "2021-03-01T10:00:00-05:00", "title": "Heliophysics Sentinels 2020 (Forecast Version)", "description": "In addition to the NASA missions used in research for space weather (see 2020 Heliophysics Fleet) there are additional missions operated by NOAA used for space weather forecasting. As of spring 2020, here's a tour of the NASA and NOAA Heliophysics fleets from the near-Earth satellites out to the inner solar system.The satellite orbits are color coded for their observing program:Magenta: TIM (Thermosphere, Ionosphere, Mesosphere) observationsYellow: solar observations and imageryCyan: Geospace and magnetosphereViolet: Heliospheric observations || ", "hits": 39 }, { "id": 4805, "url": "https://svs.gsfc.nasa.gov/4805/", "result_type": "Visualization", "release_date": "2020-12-07T10:00:00-05:00", "title": "Coordinated Heliosphere - How Solar Missions Work Together", "description": "Using Solar Orbiter, Parker Solar Probe, and other sun-observing missions, in coordinated observations, we can learn far more about the solar atmosphere which surrounds and impacts Earth and other missions in space, crewed and uncrewed. || ", "hits": 58 }, { "id": 4822, "url": "https://svs.gsfc.nasa.gov/4822/", "result_type": "Visualization", "release_date": "2020-09-15T10:00:00-04:00", "title": "Heliophysics Sentinels 2020", "description": "There have been few changes since the 2018 Heliophysics Fleet. Van Allen Probes and SORCE have been decommissioned, while Solar Orbiter, ICON and SET have been added. As of spring 2020, here's a tour of the NASA Heliophysics fleet from the near-Earth satellites out to the Voyagers beyond the heliopause.Excepting the Voyager missions, the satellite orbits are color coded for their observing program:Magenta: TIM (Thermosphere, Ionosphere, Mesosphere) observationsYellow: solar observations and imageryCyan: Geospace and magnetosphereViolet: Heliospheric observations || ", "hits": 45 }, { "id": 13275, "url": "https://svs.gsfc.nasa.gov/13275/", "result_type": "Produced Video", "release_date": "2019-08-07T11:30:00-04:00", "title": "How NASA Will Protect Astronauts From Space Radiation", "description": "Today, the Apollo-era flares serve as a reminder of the threat of radiation exposure for technology and astronauts in space. Understanding and predicting solar eruptions is crucial for safe space exploration. Almost 50 years since those 1972 storms, the data, technology and resources available to NASA have improved, enabling advancements towards space weather forecasts and astronaut protection — key to NASA’s Artemis program to return astronauts to the Moon.", "hits": 686 }, { "id": 4704, "url": "https://svs.gsfc.nasa.gov/4704/", "result_type": "Visualization", "release_date": "2019-03-12T10:00:00-04:00", "title": "Venus Dust Ring", "description": "In this visualization we open with a wide view of the inner solar system with the dust ring located at the orbit of Venus. The camera zooms in to a location just beyond the position of STEREO-A to look back at the orbit of Venus. This shows the enhancement of scattering by the dust ring near the greatest elongation of Venus' orbit relative to STEREO-A. || VenusDustRing.STEREOAview.HAE.AU.clockSlate_EarthTarget.HD1080i.00500_print.jpg (1024x576) [130.4 KB] || VenusDustRing.STEREOAview.HAE.AU.clockSlate_EarthTarget.HD1080i.00500_searchweb.png (320x180) [77.0 KB] || VenusDustRing.STEREOAview.HAE.AU.clockSlate_EarthTarget.HD1080i.00500_thm.png (80x40) [4.3 KB] || STEREOAview (1920x1080) [0 Item(s)] || VenusDustRing.STEREOAview.HD1080i_p30.webm (1920x1080) [9.4 MB] || VenusDustRing.STEREOAview.HD1080i_p30.mp4 (1920x1080) [740.4 MB] || STEREOAview (3840x2160) [0 Item(s)] || VenusDustRing.STEREOAview_2160p30.mp4 (3840x2160) [2.6 GB] || VenusDustRing.STEREOAview.HD1080i_p30.mp4.hwshow [203 bytes] || ", "hits": 80 }, { "id": 4360, "url": "https://svs.gsfc.nasa.gov/4360/", "result_type": "Visualization", "release_date": "2018-12-10T11:00:00-05:00", "title": "Heliophysics Sentinels 2018", "description": "This movie presents the trajectories of the heliophysics fleet from close to Earth to out beyond the heliopause. || Sentinels2018.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_print.jpg (1024x576) [74.5 KB] || Sentinels2018.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_searchweb.png (180x320) [65.6 KB] || Sentinels2018.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_thm.png (80x40) [5.1 KB] || Sentinels2018.Sentinels2Voyager_1080p30.mp4 (1920x1080) [40.3 MB] || Sentinels2018.Sentinels2Voyager_1080p30.webm (1920x1080) [6.3 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || Sentinels2018.Sentinels2Voyager_2160p30.mp4 (3840x2160) [125.7 MB] || Sentinels2018.Sentinels2Voyager_1080p30.mp4.hwshow || ", "hits": 43 }, { "id": 4699, "url": "https://svs.gsfc.nasa.gov/4699/", "result_type": "Visualization", "release_date": "2018-11-30T14:00:00-05:00", "title": "The CME Heard 'Round the Solar System", "description": "As the CMEs and SIRs move through the solar system, we include graphs of particle fluxes measured at Earth, Mars, and STEREO-A. || SEPsAtMars.topfixed.UHDframes.clockSlate_HAE.UHD3840.01000_print.jpg (1024x576) [100.6 KB] || SEPsAtMars.topfixed.UHDframes.clockSlate_HAE.UHD3840.01000_thm.png (80x40) [6.5 KB] || SEPsAtMars.topfixed.UHDframes.clockSlate_HAE.UHD3840.01000_searchweb.png (320x180) [87.5 KB] || SEPsAtMars.topfixed_HAE.HD1080i_p30.mp4 (1920x1080) [19.4 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || SEPsAtMars.topfixed_HAE.HD1080i_p30.webm (1920x1080) [3.0 MB] || SEPsAtMars.topfixed_HAE_2160p30.mp4 (3840x2160) [61.6 MB] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || ", "hits": 102 }, { "id": 4589, "url": "https://svs.gsfc.nasa.gov/4589/", "result_type": "Visualization", "release_date": "2017-10-25T10:00:00-04:00", "title": "Heliophysics Sentinels 2017", "description": "This visualization starts from near Earth and the Earth orbiting satellite fleet out to the Moon, then past the Sun-Earth Lagrange point 1 to out beyond the heliopause. This is the long-play version. || Sentinels2017.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_print.jpg (1024x576) [136.1 KB] || Sentinels2017.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_searchweb.png (180x320) [84.6 KB] || Sentinels2017.Sentinels2Voyager.GSE.AU.clockSlate_EarthTarget.UHD3840.00000_thm.png (80x40) [6.0 KB] || Sentinels2017.Sentinels2Voyager.HD1080i_p30.webm (1920x1080) [12.4 MB] || SlowPlay (1920x1080) [0 Item(s)] || Sentinels2017.Sentinels2Voyager.HD1080i_p30.mp4 (1920x1080) [111.6 MB] || SlowPlay (3840x2160) [0 Item(s)] || Sentinels2017.Sentinels2Voyager_2160p30.mp4 (3840x2160) [336.2 MB] || Sentinels2017.Sentinels2Voyager.HD1080i_p30.mp4.hwshow [209 bytes] || ", "hits": 31 }, { "id": 30822, "url": "https://svs.gsfc.nasa.gov/30822/", "result_type": "Infographic", "release_date": "2016-12-06T00:00:00-05:00", "title": "NASA's Heliophysics Fleet", "description": "The current Heliophysics fleet || hpd-fleet-chart-jan-2024_print.jpg (1024x576) [180.0 KB] || hpd-fleet-chart-jan-2024.png (3840x2160) [7.3 MB] || hpd-fleet-chart-jan-2024_searchweb.png (320x180) [91.3 KB] || hpd-fleet-chart-jan-2024_thm.png (80x40) [7.2 KB] || nasas-fleets-by-division-helio-jewel.hwshow [228 bytes] ||", "hits": 79 }, { "id": 4496, "url": "https://svs.gsfc.nasa.gov/4496/", "result_type": "Visualization", "release_date": "2016-10-25T10:00:00-04:00", "title": "STEREO in stereo: Spring 2007 at 171 Ångstroms", "description": "Red/Cyan stereo glasses are required to view it properly. || 2007stereo_STEREO_RedCyan_010_EUVI171A_UHD3840.02000_print.jpg (1024x576) [69.0 KB] || 2007stereo_RedCyan_010_EUVI171A_2160p30.mp4 (3840x2160) [451.0 MB] || RedCyan (3840x2160) [512.0 KB] || 2007stereo_RedCyan_010_EUVI171A_2160p30.webm (3840x2160) [13.7 MB] || ", "hits": 27 }, { "id": 4500, "url": "https://svs.gsfc.nasa.gov/4500/", "result_type": "Visualization", "release_date": "2016-10-25T10:00:00-04:00", "title": "STEREO in stereo: Spring 2007 at 195 Ångstroms", "description": "Red/Cyan stereo glasses are required to view it properly. || 2007stereo_STEREO_RedCyan_010_EUVI195A_UHD3840.02000_print.jpg (1024x576) [51.7 KB] || 2007stereo_RedCyan_010_EUVI195A_2160p30.mp4 (3840x2160) [287.8 MB] || RedCyan (3840x2160) [512.0 KB] || 2007stereo_RedCyan_010_EUVI195A_2160p30.webm (3840x2160) [12.6 MB] || ", "hits": 26 }, { "id": 4501, "url": "https://svs.gsfc.nasa.gov/4501/", "result_type": "Visualization", "release_date": "2016-10-25T10:00:00-04:00", "title": "STEREO in stereo: Spring 2007 at 284 Ångstroms", "description": "Red/Cyan stereo glasses are required to view it properly. || 2007stereo_STEREO_RedCyan_010_EUVI284A_UHD3840.02000_print.jpg (1024x576) [59.2 KB] || RedCyan (3840x2160) [512.0 KB] || 2007stereo_RedCyan_010_EUVI284A_2160p30.mp4 (3840x2160) [506.4 MB] || 2007stereo_RedCyan_010_EUVI284A_2160p30.webm (3840x2160) [12.7 MB] || ", "hits": 24 }, { "id": 4502, "url": "https://svs.gsfc.nasa.gov/4502/", "result_type": "Visualization", "release_date": "2016-10-25T10:00:00-04:00", "title": "STEREO in stereo: Spring 2007 at 304 Ångstroms", "description": "Red/Cyan stereo glasses are required to view it properly. || 2007stereo_STEREO_RedCyan_010_EUVI304A_UHD3840.02000_print.jpg (1024x576) [80.1 KB] || 2007stereo_RedCyan_010_EUVI304A_2160p30.mp4 (3840x2160) [710.3 MB] || RedCyan (3840x2160) [512.0 KB] || 2007stereo_RedCyan_010_EUVI304A_2160p30.webm (3840x2160) [15.7 MB] || ", "hits": 35 }, { "id": 12393, "url": "https://svs.gsfc.nasa.gov/12393/", "result_type": "Produced Video", "release_date": "2016-10-25T10:00:00-04:00", "title": "3D 4k for STEREO's 10th Anniversary", "description": "Longer video with four different wavelengths captured by STEREO from March 17, 2007 to April 11, 2007Music: \"Soothing\" and “Serendipity\" from ErstwhileAll tracks written and produced by Lars Leonhardwww.lars-leonhard.deWatch this video on the NASA Goddard YouTube channel.Complete transcript available. || STEREO_10th_Still_1_print.jpg (1024x576) [118.0 KB] || STEREO_10th_Still_1.png (3840x2160) [19.0 MB] || STEREO_10th_Still_1.jpg (3840x2160) [882.8 KB] || STEREO_10th_Still_1_searchweb.png (320x180) [60.1 KB] || STEREO_10th_Still_1_thm.png (80x40) [4.3 KB] || STEREO_10th_3D_HD_1080_H264.mov (1920x1080) [1014.5 MB] || STEREO_10th_3D_Good_1080.m4v (1920x1080) [674.9 MB] || STEREO_10th_3D_Most_Compatible_1080.m4v (960x540) [276.8 MB] || STEREO_10th_3D_Most_Compatible_1080.webm (960x540) [77.2 MB] || STEREO_10th_3D_ProRes_3840x2160_2997.mov (3840x2160) [36.6 GB] || STEREO_10th_3D_4k_H264.mov (3840x2160) [1.3 GB] || STEREO_10th_3D_SRT_Captions.en_US.srt [2.3 KB] || STEREO_10th_3D_SRT_Captions.en_US.vtt [2.3 KB] || ", "hits": 52 }, { "id": 12390, "url": "https://svs.gsfc.nasa.gov/12390/", "result_type": "Produced Video", "release_date": "2016-10-17T16:00:00-04:00", "title": "NASA's STEREO Solar Probes 10th Anniversary Live Shots", "description": "B-roll that corresponds with the live shots. || B-Roll_2.00001_print.jpg (1024x576) [130.4 KB] || B-Roll_2.00001_searchweb.png (320x180) [78.8 KB] || B-Roll_2.00001_web.png (320x180) [78.8 KB] || B-Roll_2.00001_thm.png (80x40) [6.6 KB] || B-Roll.webm (1280x720) [19.6 MB] || B-Roll_2.webm (1280x720) [19.5 MB] || B-Roll_2.mov (1280x720) [3.1 GB] || ", "hits": 60 }, { "id": 11558, "url": "https://svs.gsfc.nasa.gov/11558/", "result_type": "Produced Video", "release_date": "2014-09-24T10:00:00-04:00", "title": "NASA's Many Views of a Massive CME", "description": "On July 23, 2012, a massive cloud of solar material erupted off the sun's right side, zooming out into space. It soon passed one of NASA's Solar Terrestrial Relations Observatory, or STEREO, spacecraft, which clocked the CME as traveling between 1,800 and 2,200 miles per second as it left the sun. This was the fastest CME ever observed by STEREO. Two other observatories – NASA's Solar Dynamics Observatory and the joint European Space Agency/NASA Solar and Heliospheric Observatory — witnessed the eruption as well. The July 2012 CME didn't move toward Earth, but watching an unusually strong CME like this gives scientists an opportunity to observe how these events originate and travel through space. STEREO's unique viewpoint from the sides of the sun combined with the other two observatories watching from closer to Earth helped scientists create models of the entire July 2012 event. They learned that an earlier, smaller CME helped clear the path for the larger event, thus contributing to its unusual speed. Such data helps advance our understanding of what causes CMEs and improves modeling of similar CMEs that could be Earth-directed. || ", "hits": 110 }, { "id": 4167, "url": "https://svs.gsfc.nasa.gov/4167/", "result_type": "Visualization", "release_date": "2014-07-23T00:00:00-04:00", "title": "The Big CME that Missed Earth", "description": "July of 2012 witnessed the eruption of a very large and fast solar coronal mass ejection (CME) (see NASA STEREO Observes One of the Fastest CMEs On Record and Carrington-class CME Narrowly Misses Earth ). While not directed at Earth, it was sufficiently large that it could have seriously disrupted the global electrical infrastructure. The event did impact STEREO-A of NASA's heliophysics fleet which provided a host of measurements (see Sentinels of the Heliosphere).One of the conditions which contributed to the high speed of this event is that two smaller CMEs were launched a little earlier, and these events cleared out much of the solar wind material, leaving little to slow the outflow of the July 23 event (UTC).In the visualizations below, generated from the Enlil space weather model, green represents particle density, usually protons and other ions. In green, we see the Parker spiral moving out from the sun generated by the sun's current sheet (Wikipedia). Red represents particles at high temperatures and shows the CME is hotter than the usual solar wind flow. Large changes in density are represented in blue. These three colors sometimes combine to tell us more about the characteristics of the event (noted in the 3-color Venn diagram below).However, if this CME had struck Earth's magnetosphere, which has a much stronger magnetic field, the changing magnetic field would induce much larger voltages in systems with long electrical conductors, such as power lines that run over long distances. These significantly higher voltages can damage power transformers. || ", "hits": 138 }, { "id": 4177, "url": "https://svs.gsfc.nasa.gov/4177/", "result_type": "Visualization", "release_date": "2014-07-23T00:00:00-04:00", "title": "As Seen by STEREO-A: The Carrington-Class CME of 2012", "description": "STEREO-A, at a position along Earth's orbit where it has an unobstructed view of the far side of the Sun, could clearly observe possibly the most powerful coronal mass ejection (CME) of solar cyle 24 on July 23, 2012. The visualizations on this page cover the entire day.We see the flare erupt in the lower right quadrant of the solar disk from a large active region. The material is launched into space in a direction towards STEREO-A. This creates the ring-like 'halo' CME visible in the STEREO-A coronagraph, COR-2 (blue circular image).As the CME expands beyond the field of view of the COR-2 imager, the high energy particles reach STEREO-A, creating the snow-like noise in the image. The particles also strike the HI-2 imager (blue square) brightening the image.The HI-1 imager has had 'bloom removal' enabled and filled with contents of the immediately previous HI-1 image, which creates a linear artifact above and below bright stars and planets. || ", "hits": 139 }, { "id": 4178, "url": "https://svs.gsfc.nasa.gov/4178/", "result_type": "Visualization", "release_date": "2014-07-23T00:00:00-04:00", "title": "As Seen by STEREO-B: The Carrington-Class CME of 2012", "description": "Like SDO, STEREO-B did not have a direct view of the coronal mass ejection (CME) launched by the sun on July 23, 2012. However, the active region involved was very close to the limb of the sun (lower left quadrant) and STEREO-B provided an excellent view of plasma launched in both ultraviolet light and the white-light coronagraph. || ", "hits": 67 }, { "id": 11602, "url": "https://svs.gsfc.nasa.gov/11602/", "result_type": "Produced Video", "release_date": "2014-07-03T11:00:00-04:00", "title": "STEREO Solar Conjunction", "description": "Since February 2011, the two spacecraft of NASA's STEREO mission have been providing scientists with unprecedented views of the far side of the sun. Placed in an orbit that allows their perspective to changed over the eight years since their launch in 2008 (ck), the satellites are about to enter a new phase of their journey: a time when the bright light and heat of the sun will stand in the way of sending data back to Earth.This phase is a direct result of the orbits for STEREO, which is short for the Solar Terrestrial Relations Observatory. The spacecraft travel at different speeds. This means that over time, the satellites become increasingly out of sync, appearing from Earth's perspective to drift farther apart, able to observe first the sides and eventually the far side of the sun. For the first time ever, thanks to STEREO and near-Earth solar telescopes such as NASA’s Solar Dynamics Observatory the human race has had its first 360-degree view of the sun.The orbits have continued to cause the STEREO spacecraft's position to change, however, and now they are nearing each other once again, this time on the other side of the sun. During this period when the sun blocks Earth's view — a geometrical position known in astronomy as a superior conjunction — radio receivers on Earth will not be able to distinguish STEREO's signal from the sun's radiation. Communication with the spacecraft will cease and the satellites will both go into safe mode without collecting data for a time. This will happen for STEREO-Ahead from March 24 to July 7, 2015. STEREO-Behind will be in superior conjunction from Jan. 22 to March 23, 2015. At least one spacecraft, therefore, will always be collecting data. Before this occurs, the heating from the sun will also begin to affect – though not shut down — data collection. From wherever they are in space, the STEREO spacecraft aim their antenna toward Earth to send down data. This position puts the antenna fairly close to pointing at the sun, exposing the instruments to more heat than it can safely bear. The antenna can be adjusted to point in different directions, but the signal coming to Earth will be much fainter and won't allow for as much data to be downloaded. This antenna adjustment will begin on Aug. 20, 2014, for the STEREO-Ahead spacecraft and on Dec. 1, 2014, for STEREO-Behind. During this phase, STEREO instruments will continue to run 24 hours a day, but they will gather lower-resolution data than usual. Some of this data will be downloaded whenever STEREO can link up with an Earth receiver. The rest of the data will be stored on board to be downloaded when the spacecraft reach a more auspicious geometrical position in early 2016. To test for this off-pointing from the sun, STEREO-Ahead will undergo tests and not be collecting data from July 6-12, 2014. The same tests will be performed on STEREO-Behind from Sept. 29 – Oct. 6, 2014. Throughout this entire phase until 2016, at least one STEREO spacecraft will be capturing data at any one time, so scientists will have an uninterrupted record of events on the sun to coordinate with the observations of solar telescopes on the Earth side. Real time monitoring of the sun, its flares and coronal mass ejections – information used by the US National Oceanic and Atmospheric Administration to help forecast space weather — will also continue via a fleet of NASA spacecraft closer to Earth. || ", "hits": 60 }, { "id": 11556, "url": "https://svs.gsfc.nasa.gov/11556/", "result_type": "Produced Video", "release_date": "2014-05-30T09:30:00-04:00", "title": "A First for NASA's IRIS: Observing a Gigantic Eruption of Solar Material", "description": "A coronal mass ejection, or CME, surged off the side of the sun on May 9, 2014, and NASA's newest solar observatory caught it in extraordinary detail. This was the first CME observed by the Interface Region Imaging Spectrograph, or IRIS, which launched in June 2013 to peer into the lowest levels of the sun's atmosphere with better resolution than ever before. Watch the movie to see how a curtain of solar material erupts outward at speeds of 1.5 million miles per hour.IRIS must commit to pointing at certain areas of the sun at least a day in advance, so catching a CME in the act involves some educated guesses and a little bit of luck. \"We focus in on active regions to try to see a flare or a CME,\" said Bart De Pontieu, the IRIS science lead at Lockheed Martin Solar & Astrophysics Laboratory in Palo Alto, California. \"And then we wait and hope that we'll catch something. This is the first clear CME for IRIS so the team is very excited.\" The IRIS imagery focuses in on material of 30,000 Kelvin at the base, or foot points, of the CME. The line moving across the middle of the movie is the entrance slit for IRIS's spectrograph, an instrument that can split light into its many wavelengths – a technique that ultimately allows scientists to measure temperature, velocity and density of the solar material behind the slit. The field of view for this imagery is about five Earth's wide and about seven and a half Earth's tall. The IRIS Observatory was designed by and the mission is managed by Lockheed Martin Solar & Astrophysics Laboratory. NASA's Ames Research Center in Mountain View, California, provides mission operations and ground data systems. NASA's Goddard Space Flight Center in Greenbelt, Maryland, manages the Explorers Program for NASA's Science Mission Directorate in Washington, D.C. || ", "hits": 50 }, { "id": 11422, "url": "https://svs.gsfc.nasa.gov/11422/", "result_type": "Produced Video", "release_date": "2013-11-22T11:00:00-05:00", "title": "NASA's Solar Observing Fleet Watch Comet ISON's Journey Around the Sun", "description": "After several days of continued observations, scientists continue to work to determine and to understand the fate of Comet ISON: There's no doubt that the comet shrank in size considerably as it rounded the sun and there's no doubt that something made it out on the other side to shoot back into space. The question remains as to whether the bright spot seen moving away from the sun was simply debris, or whether a small nucleus of the original ball of ice was still there. Regardless, it is likely that it is now only dust. The comet was visible in instruments on NASA's Solar Terrestrial Relations Observatory, or STEREO, and the joint European Space Agency/NASA Solar and Heliospheric Observatory, or SOHO, via images called coronagraphs.Watch this video on the NASA Goddard YouTube channel.Credit:NASA/STEREO/ESA/SOHO/SDOGSFC || STEREO_A_Cor2_Still.jpg (1280x720) [494.6 KB] || STEREO_A_Cor2_Still_web.png (320x180) [67.2 KB] || ISON_Full_FINAL_1280x720.wmv (1280x720) [49.4 MB] || ISON_Full_FINAL_appletv.m4v (960x540) [46.4 MB] || ISON_Full_H264_1280x720_30.mov (1280x720) [43.1 MB] || ISON_Full_MPEG4_1280X720_29.97.mp4 (1280x720) [28.0 MB] || ISON_Full_FINAL_appletv.webmhd.webm (960x540) [16.6 MB] || ISON_Full_FINAL_ipod_lg.m4v (640x360) [17.5 MB] || ISON_Full_FINAL.mp4 (320x240) [8.3 MB] || ISON_Full_FINAL_ipod_sm.mp4 (320x240) [8.3 MB] || ISON_Full_ProRes_1280x720_29.97.mov (1280x720) [810.6 MB] || ISON_Full_H264_Best_1280x720_29.97.mov (1280x720) [517.2 MB] || ISON_Full_H264_Good_1280x720_29.97.mov (1280x720) [124.1 MB] || ISON_Full_FINAL_youtube_hq.mov (1280x720) [124.1 MB] || ", "hits": 55 }, { "id": 30362, "url": "https://svs.gsfc.nasa.gov/30362/", "result_type": "Hyperwall Visual", "release_date": "2013-10-22T12:00:00-04:00", "title": "Full Map of the Sun's Surface", "description": "This movie shows the evolution of the Sun's entire surface as seen in extreme ultraviolet light (304 angstroms) for the time period Jan 1 - Sep 27, 2012. The movie was made by combining nearly simultaneous view of the Sun from three spacecraft: STEREO AHEAD and BEHIND (seeing the Sun's far side) and the Solar Dynamic Observer (seeing the near side). This EUV light comes primarily from the solar chromosphere. The bright patches are active regions. Many dark prominence eruptions can also be seen. The data is plotted in Carrington coordinates which are \"fixed\" to the surface of the Sun. In this coordinate system, the active regions tend to stay at the same location. However, the Sun's rotation rate actually changes with latitude and this can be seen in the movie. || ", "hits": 541 }, { "id": 30081, "url": "https://svs.gsfc.nasa.gov/30081/", "result_type": "Hyperwall Visual", "release_date": "2013-10-10T00:00:00-04:00", "title": "Stereo Captures Eruption and CME", "description": "On May 1, 2013, NASA's Solar Terrestrial Relations Observatory Ahead (STEREO-A) satellite along with its twin STEREO Behind (STEREO-B), observed an active region (right) of the sun erupt. This eruption, called a coronal mass ejection, or CME, sent plasma streaming out through the solar system. STEREO has an extreme ultraviolet camera similar to the Solar Dynamics Observatory (SDO) satellite, but it also has coronagraph telescopes like the European Space Agency/NASA Solar and Heliospheric Observatory (SOHO) where the bright sun is blocked by a disk so it does not overpower the fainter solar atmosphere. As a result, using its two inner coronagraphs, STEREO was able to track the CME from the solar surface out to 6.3 million miles. || ", "hits": 36 }, { "id": 11307, "url": "https://svs.gsfc.nasa.gov/11307/", "result_type": "Produced Video", "release_date": "2013-07-16T13:00:00-04:00", "title": "What is a Sungrazing Comet?", "description": "Sungrazing comets are a special class of comets that come very close to the sun at their nearest approach, a point called perihelion. To be considered a sungrazer, a comet needs to get within about 850,000 miles from the sun at perihelion. Many come even closer, even to within a few thousand miles. Being so close to the sun is very hard on comets for many reasons. They are subjected to a lot of solar radiation which boils off their water or other volatiles. The physical push of the radiation and the solar wind also helps form the tails. And as they get closer to the sun, the comets experience extremely strong tidal forces, or gravitational stress. In this hostile environment, many sungrazers do not survive their trip around the sun. Although they don't actually crash into the solar surface, the sun is able to destroy them anyway. Many sungrazing comets follow a similar orbit, called the Kreutz Path, and collectively belong to a population called the Kreutz Group. In fact, close to 85% of the sungrazers seen by the SOHO satellite are on this orbital highway. Scientists think one extremely large sungrazing comet broke up hundreds, or even thousands, of years ago, and the current comets on the Kreutz Path are the leftover fragments of it. As clumps of remnants make their way back around the sun, we experience a sharp increase in sungrazing comets, which appears to be going on now. Comet Lovejoy, which reached perihelion on December 15, 2011 is the best known recent Kreutz-group sungrazer. And so far, it is the only one that NASA's solar-observing fleet has seen survive its trip around the sun. Comet ISON, an upcoming sungrazer with a perihelion of 730,000 miles on November 28, 2013, is not on the Kreutz Path. In fact, ISON's orbit suggests that it may gain enough momentum to escape the solar system entirely, and never return. Before it does so, it will pass within about 40 million miles from Earth on December 26th. Assuming it survives its trip around the sun. || ", "hits": 320 }, { "id": 10785, "url": "https://svs.gsfc.nasa.gov/10785/", "result_type": "Produced Video", "release_date": "2013-05-07T11:00:00-04:00", "title": "NASA's Heliophysics Fleet Captures May 1, 2013 Prominence Eruption and CME", "description": "On May 1, 2013, NASA's Solar Dynamics Observatory (SDO) watched as an active region just around the East limb (left edge) of the sun erupted with a huge cloud of solar material—a heated, charged gas called plasma. This eruption, called a coronal mass ejection, or CME, sent the plasma streaming out through the solar system. Viewing the sun in the extreme ultraviolet wavelength of 304 angstroms, SDO provided a beautiful view of the initial arc as it left the solar surface. Such eruptions soon leave SDO's field of view, but other satellites in NASA's Heliophysics fleet can pick them up, tracking such space weather to determine if they are headed toward Earth or spacecraft near other planets. With advance warning, many space assets can be put into safe mode and protect themselves from the effects of such particle radiation.In addition to the images captured by SDO, the May 1, 2013 CME was also observed by the ESA/NASA Solar and Heliospheric Observatory (SOHO). SOHO houses two overlapping coronagraphs—telescopes where the bright sun is blocked by a disk so it doesn't overpower the fainter solar atmosphere—and they both saw the CME continue outward. The LASCO C2 coronagraph shows the region out to about 2.5 million miles. The LASCO C3 coronagraph expands even farther out to around 13.5 million miles. Both of these instruments show the CME as it expands and becomes fainter on its trip away from the sun.NASA's Solar Terrestrial Relations Observatory (STEREO) Ahead satellite saw the eruption from a very different angle. It, along with its twin STEREO Behind, is orbiting at a similar distance as Earth. STEREO-A orbits slightly faster than Earth and STEREO-B orbits slightly slower. Currently, STEREO-A is more than two-thirds of the way to being directly behind the sun, and has a view of the far side of the sun. From this perspective, the CME came off the right side of the sun. STEREO has an extreme ultraviolet camera similar to SDO's, but it also has coronagraphs like SOHO. As a result, using its two inner coronagraphs, it was able to track the CME from the solar surface out to 6.3 million miles.Working together, such missions provide excellent coverage of a wide variety of solar events, a wealth of scientific data—and lots of beautiful imagery.Watch this video on YouTube. || ", "hits": 92 }, { "id": 11257, "url": "https://svs.gsfc.nasa.gov/11257/", "result_type": "Produced Video", "release_date": "2013-04-26T16:00:00-04:00", "title": "CMEs Galore", "description": "On April 20, 2013, at 2:54 a.m. EDT, the sun erupted with a coronal mass ejection (CME), a solar phenomenon that can send billions of tons of solar particles into space that can affect electronic systems in satellites. Experimental NASA research models show that the CME left the sun at 500 miles per second and is not Earth-directed. However, it may pass by NASA's Messenger and STEREO-A satellites, and their mission operators have been notified. There is, however, no particle radiation associated with this event, which is what would normally concern operators of interplanetary spacecraft since the particles can trip computer electronics on board. When warranted, NASA operators can put spacecraft into safe mode to protect the instruments from the solar material. The same region of the sun erupted with another coronal mass ejection (CME) at 3:54 a.m. on April 21, 2013. Experimental NASA research models show the CME left the sun at speeds of 550 miles per second. The models show that the CME will also pass by NASA's Messenger and the flank of the CME may graze STEREO-A.Another coronal mass ejection (CME) has erupted from the sun, headed toward Mercury and NASA's Messenger spacecraft. The CME began at 12:39 p.m. EDT on April 21, 2013. Experimental NASA research models show that the CME left the sun at 625 miles per second and that it will catch up to the CME from earlier on April 21 before the combined CMEs pass Messenger. There is also chance that the combined CMEs will give a glancing blow to STEREO-A. || ", "hits": 135 }, { "id": 4058, "url": "https://svs.gsfc.nasa.gov/4058/", "result_type": "Visualization", "release_date": "2013-03-27T00:00:00-04:00", "title": "Space Weather @ Mars: The CME of March 5, 2013", "description": "These images were produced from a space weather model known as ENLIL named after the Sumerian storm god. It shows the way a coronal mass ejection (CME) on March 5, 2013, was expected to travel. The view on the left is top down, while the one on the right shows Earth from the side.To protect their space assets from excessive radiation, NASA and other organizations research the fundamental processes behind space weather such as CMEs, integrating them into research models, which are run continuously at the Community-Coordinated Modeling Center (CCMC) at NASA Goddard.When CMEs occur on the sun, models are generated with the best event information available at the time and propagated forward to estimate regions in the solar system that might be affected. The models take about an hour or two to run. The CMEs themselves usually take one or two days to reach other planets or spacecraft.The March 5 CME moved towards Mars and the STEREO-B spacecraft (blue spacecraft icon). This allowed mission operators to take steps to protect STEREO-B as well as spacecraft operating around and on Mars. || ", "hits": 46 }, { "id": 11226, "url": "https://svs.gsfc.nasa.gov/11226/", "result_type": "Produced Video", "release_date": "2013-03-18T15:00:00-04:00", "title": "STEREO Watches the Sun Blast Comet PanSTARRS", "description": "This movie from the Solar Terrestrial Relations Observatory (STEREO) shows comet PanSTARRS as it moved around the sun from March 10-15,2013 (repeated three times). The images were captured by the Heliospheric Imager (HI), an instrument that looks to the side of the sun to watch coronal mass ejections (CMEs) as they travel toward Earth, which is the unmoving bright orb on the right. The bright light on the left comes from the sun and the bursts from the left represent the solar material erupting off the sun in a CME. While it appears from STEREO's point of view that the CME passes right by the comet, the two are not lying in the same plane, which scientists know since the comet's tail didn't move or change in response to the CME's passage. || ", "hits": 44 }, { "id": 11156, "url": "https://svs.gsfc.nasa.gov/11156/", "result_type": "Produced Video", "release_date": "2013-02-06T10:00:00-05:00", "title": "Sungrazers Galore", "description": "Before 1979, there were less than a dozen known sungrazing comets. As of December 2012, we know of 2,500. Why did this number increase? With solar observatories like SOHO, STEREO, and SDO, we have not only better means of viewing the sun, but also the comets that approach it. SOHO allows us to see smaller, fainter comets closer to the sun than we have ever been able to see before. Even though many of these comets do not survive their journey past the sun, they survive long enough to be observed, and be added to our record of sungrazing comets. || ", "hits": 34 }, { "id": 3993, "url": "https://svs.gsfc.nasa.gov/3993/", "result_type": "Visualization", "release_date": "2012-09-20T00:00:00-04:00", "title": "STEREO's Ongoing Mission to See the Sun from All Sides", "description": "In 2012, the two STEREO spacecraft, Ahead (STEREO-A) and Behind (STEREO-B) continue on their orbits around the Sun. For the next several years, the spacecraft will be positioned to observe the side of the Sun not visible from the Earth. || ", "hits": 45 }, { "id": 3846, "url": "https://svs.gsfc.nasa.gov/3846/", "result_type": "Visualization", "release_date": "2011-12-16T00:00:00-05:00", "title": "From the Sun to the Earth: The View from STEREO-A with no CME Enhancement", "description": "This visualization shows the original dataset from STEREO-A used to extract the motion of the coronal mass ejection (CME) in ID 3890. The data are combined from the SECCHI instrument, which includes an ultraviolet image of the Sun (EUVI), two coronographs (COR-1 & COR-2), and the wide-angle Heliospheric Imagers (HI-1 & HI-2).On this scale, the CME is so faint as to be invisible. However, the Heliospheric Imagers support such a broad range of image intensity that it is possible to observe the CME propagating through the field of view by computing differences of images with the preceeding image. This process is shown in animation #3890.The Earth (left side) and Venus (middle) are so bright as to 'bloom' along the readout line of the CCD (Charge-coupled device) pixels, which creates the bright vertical lines that move slightly with time. The dark shape on the left of the field of view is created by an occulting tab that was installed to (occasionally) hide the bright Earth in the view.The little cross markers label three other planets in the view of STEREO. Uranus is almost invisible in the scale of this imagery, but is visible in full-resolution datasets. || ", "hits": 88 }, { "id": 3890, "url": "https://svs.gsfc.nasa.gov/3890/", "result_type": "Visualization", "release_date": "2011-12-06T00:00:00-05:00", "title": "From the Sun to the Earth: CME Enhancement", "description": "This visualization shows the dataset from STEREO-A processed to enhance the visibility of the coronal mass ejection (CME) in entry #3846. The data are combined from the SECCHI instrument, which includes an ultraviolet image of the Sun (EUVI), two coronographs (COR-1 & COR-2), and the wide-angle Heliospheric Imagers (HI-1 & HI-2).Because the enhancement process for the CME involves computing differences from a number of sequential HI-1 and HI-2 images, the Earth (left side) and Venus (middle) are masked and oversized icons are installed to mark their position. The dark shape on the left of the field of view is created by an occulting tab that was installed to (occasionally) hide the bright Earth in the view.The little cross markers label three other planets in the view of STEREO. Uranus is almost invisible in the scale of this imagery, but is visible in full-resolution datasets. || ", "hits": 60 }, { "id": 3851, "url": "https://svs.gsfc.nasa.gov/3851/", "result_type": "Visualization", "release_date": "2011-10-31T00:00:00-04:00", "title": "STEREO+SDO: Around the Sun for 81 Days", "description": "This is a sequence of 4Kx2K images, cylindrical-equidistant projection, of the Sun that can be mapped to a sphere. The sequence was assembled by combining 304 Ångstrom (extreme ultraviolet wavelength) images from STEREO-A, STEREO-B, and the Solar Dynamics Observatory (SDO). The series covers the time frame shortly after the STEREO spacecraft moved into a position where they had a complete view of the side of the Sun not visible from the Earth (see Sun 360).Technical DetailsThe data are sampled in time approximately every three hours. Since each spacecraft is at a slightly different distance from the Sun, the intensity received by each pixel was normalized to correspond to the intensity one astronomical unit from the Sun using the inverse-square law. The flux was also adjusted for the fact that each pixel captures a different fraction of the light due to their different angular size for each spacecraft. The image from each spacecraft is then reprojected using the World Coordinate System (WCS) routines of the SolarSoft library. Masks were made to smooth the transition where datasets overlap. There are a few gaps in the data, especially near the poles of the Sun, that are filled using data from the previous time step.Note: This sequence is suitable for animation and visualization purposes but NOT for scientific analysis. || ", "hits": 81 }, { "id": 3847, "url": "https://svs.gsfc.nasa.gov/3847/", "result_type": "Visualization", "release_date": "2011-08-18T14:00:00-04:00", "title": "From the Sun to the Earth: STEREO tracks a CME", "description": "For many years, the idea that coronal mass ejections (CME) launched from the Sun and could strike the Earth was inferred from an indirect chain of evidence collected from multiple satellites. Now the Heliospheric Imagers aboard the STEREO-A spacecraft has managed to view a CME propagate from the surface of the Sun to the Earth.This visualization shows the position of the STEREO spacecraft during the event, as well as the positions of the inner solar system planets, Venus and Mercury. A faint cone illustrates the field-of-view (FOV) of the HI-2 imager on STEREO-A. The position of the front of the CME is computed from STEREO data. || ", "hits": 48 }, { "id": 10809, "url": "https://svs.gsfc.nasa.gov/10809/", "result_type": "Produced Video", "release_date": "2011-08-18T13:00:00-04:00", "title": "NASA Spacecraft Track Solar Storms From Sun To Earth", "description": "NASA's STEREO spacecraft and new data processing techniques have succeeded in tracking space weather events from their origin in the Sun's ultrahot corona to impact with the Earth 93 million miles away, resolving a 40-year mystery about the structure of the structures that cause space weather: how the structures that impact the Earth relate to the corresponding structures in the solar corona.Despite many instruments that monitor the Sun and a fleet of near-earth probes, the connection between near-Earth disturbances and their counterparts on the Sun has been obscure, because CMEs and the solar wind evolve and change during the 93,000,000 mile journey from the Sun to the Earth.STEREO includes \"heliospheric imager\" cameras that monitor the sky at large angles from the Sun, but the starfield and galaxy are 1,000 times brighter than the faint rays of sunlight reflected by free-floating electron clouds inside CMEs and the solar wind; this has made direct imaging of these important structures difficult or impossible, and limited understanding of the connection between space storms and the coronal structures that cause them.Newly released imagery reveals absolute brightness of detailed features in a large geoeffective CME in late 2008, connecting the original magnetized structure in the Sun's corona to the intricate anatomy of an interplanetary storm as it impacted the Earth three days later. At the time the data were collected, in late 2008, STEREO-A was nearly 45 degrees ahead of the Earth in its orbit, affording a very clear view of the Earth-Sun line.For the press conference Visual 1, a visualization of the STEREO orbits and the 2008 CME, go here.For Visual 7, a CME and reconnection animation, go here.For Visual 8, footage of the October 2003 solar storms, go here. || ", "hits": 104 }, { "id": 10109, "url": "https://svs.gsfc.nasa.gov/10109/", "result_type": "Produced Video", "release_date": "2011-08-09T10:00:00-04:00", "title": "X-Class: A Guide to Solar Flares", "description": "Flares happen when the powerful magnetic fields in and around the sun reconnect. They're usually associated with active regions, often seen as sun spots, where the magnetic fields are strongest. Flares are classified according to their strength. The smallest ones are B-class, followed by C, M and X, the largest. Similar to the Richter scale for earthquakes, each letter represents a ten-fold increase in energy output. So an X is 10 times an M and 100 times a C. Within each letter class, there is a finer scale from 1 to 9. C-class flares are too weak to noticeably affect Earth. M-class flares can cause brief radio blackouts at the poles and minor radiation storms that might endanger astronauts. Although X is the last letter, there are flares more than 10 times the power of an X1, so X-class flares can go higher than 9. The most powerful flare on record was in 2003, during the last solar maximum. It was so powerful that it overloaded the sensors measuring it. They cut-out at X17, and the flare was later estimated to be about X45. A powerful X-class flare like that can create long lasting radiation storms, which can harm satellites and even give airline passengers, flying near the poles, small radiation doses. X flares also have the potential to create global transmission problems and world-wide blackouts. || ", "hits": 2784 }, { "id": 10744, "url": "https://svs.gsfc.nasa.gov/10744/", "result_type": "Produced Video", "release_date": "2011-04-30T00:00:00-04:00", "title": "The NASA Goddard Space Flight Center - in Stereoscopic 3D!", "description": "See Goddard in 3DThis short promotional video highlights some of the best that the Goddard Space Flight Center has to offer - showcasing the science and technology born from the efforts of the dedicated Goddard family. Available here are left and right eye movies, as well as anaglyph (red/cyan). To view the 3D version on Youtube: http://youtu.be/08rMlpvUP3w?hd=1To view the 2D version on Youtube: http://youtu.be/2rb-u9cnQeI || GSFC_3D_960x540_2997_anaglyph.00277_print.jpg (1024x576) [68.2 KB] || GSFC_3D_960x540_2997_anaglyph_web.png (320x180) [184.7 KB] || GSFC_3D_960x540_2997_anaglyph_thm.png (80x40) [15.2 KB] || GSFC_3D_960x540_2997_anaglyph.mov (960x540) [22.3 MB] || GSFC_3D_960x540_LEFT.mov (960x540) [19.7 MB] || GSFC_3D_appletv.m4v (960x540) [32.8 MB] || GSFC_3D_1920x1080_LEFT.wmv (1280x720) [31.7 MB] || GSFC_3D_1920x1080_AUDIO_anaglyph.mov (1920x1080) [124.2 MB] || GSFC_3D_1920x1080_H264_RIGHT.mp4 (1920x1080) [205.1 MB] || GSFC_3D_1920x1080_H264_LEFT.mp4 (1920x1080) [205.1 MB] || GSFC_3D_960x540_2997_anaglyph.webmhd.webm (960x540) [13.1 MB] || GSFC_3D_appletv_subtitles.m4v (960x540) [32.8 MB] || GSFC_3D.en_US.srt [857 bytes] || GSFC_3D.en_US.vtt [861 bytes] || ", "hits": 74 }, { "id": 20187, "url": "https://svs.gsfc.nasa.gov/20187/", "result_type": "Animation", "release_date": "2011-02-09T12:00:00-05:00", "title": "STEREO Sun360 Animations", "description": "Animations created for STEREO Sun360 teaser and visuals release.For more on the STEREO Sun360 event go to #10713 and #10718. || ", "hits": 33 }, { "id": 10720, "url": "https://svs.gsfc.nasa.gov/10720/", "result_type": "Produced Video", "release_date": "2011-02-07T12:00:00-05:00", "title": "From Stonehenge to STEREO: A One Minute History of How We See the Sun", "description": "Humans have always wanted to learn about the Sun, but our understanding of our favorite star has changed through the centuries. In prepartion for Sun360, when the STEREO spacecrafts will provide the first uninterrupted view of the Sun, this video is a condensed history of how we have studied the Sun over time. || ", "hits": 36 }, { "id": 3809, "url": "https://svs.gsfc.nasa.gov/3809/", "result_type": "Visualization", "release_date": "2011-02-06T11:00:00-05:00", "title": "STEREO Achieves Full Solar Coverage: All the Sun. All the Time", "description": "When the two STEREO spacecraft move into positions on opposite sides of the Sun, we will have the capability to see a full 360 degrees around the solar sphere (there will probably still be some gaps in visibility near the poles of the Sun). Combined with solar observing satellites near the Earth, such as SDO and SOHO, this coverage will last for about eight years and the STEREO spacecraft move along in their orbits.This movie illustrates the orbital motions of the two STEREO spacecraft relative to the Earth (and noting the positions of the planets Mercury & Venus for reference). The camera occupies a position fixed relative to the Earth and Sun, so the distant starfield appears to spin around the observer. Because the frames are sampled at one per solar day, the Earth does not appear to rotate, but patient observation reveals that the tilt of the planet relative to the Sun, varies throughout the year, with the northern hemisphere tilted towards the Sun in northern hemisphere summer and away from the Sun in northern hemisphere winter. || ", "hits": 121 }, { "id": 3819, "url": "https://svs.gsfc.nasa.gov/3819/", "result_type": "Visualization", "release_date": "2011-02-06T11:00:00-05:00", "title": "STEREO Achieves Full Solar Coverage: View from the Farside", "description": "When the two STEREO spacecraft move into positions on opposite sides of the Sun, we will have the capability to see a full 360 degrees around the solar sphere (there will probably still be some gaps in visibility near the poles of the Sun). Combined with solar observing satellites near the Earth, such as SDO and SOHO, this coverage will last for about eight years and the STEREO spacecraft move along in their orbits.In this movie, we zoom in towards the Sun, fading from a visible light view to data from the 304 Ångstrom filters aboard SDO and both STEREO spacecraft. We swing the camera around to a view of the side of the Sun NOT visible from the Earth. With the STEREO and SDO data mapped to the sphere representing the Sun, we see the dark sliver of \"No Data\" which slowly shrinks as the STEREO spacecraft move into position 180 degrees apart on opposite sides of the Sun (and 90 degrees from Earth). STEREO data near the edge of the solar disk get stretched when projected onto a sphere and is responsible for the streaking on either side of the dark sliver. These data are sampled roughly six hours apart for each frame of the movie. Slight differenences in the six hour time step creates a slight 'jitter' of the dark sliver. || ", "hits": 31 }, { "id": 10718, "url": "https://svs.gsfc.nasa.gov/10718/", "result_type": "Produced Video", "release_date": "2011-02-06T10:00:00-05:00", "title": "STEREO Sun360", "description": "Launched in October 2006, STEREO traces the flow of energy and matter from the sun to Earth. It also provides unique and revolutionary views of the sun-Earth system. The mission observed the sun in 3-D for the first time in 2007. In 2009, the twin spacecraft revealed the 3-D structure of coronal mass ejections which are violent eruptions of matter from the sun that can disrupt communications, navigation, satellites and power grids on Earth.Seeing?the whole sun front and back simultaneously will enable significant advances in space weather forecasting for Earth and for planning for future robotic and manned spacecraft missions throughout the solar system.These views are the result of observations by NASA's two Solar TErrestrial Relations Observatory (STEREO) spacecraft. The duo are on diametrically opposite sides of the sun, 180 degrees apart. One is ahead of Earth in its orbit, the other trailing behind.For the STEREO Sun360 Teaser, go here.For the full visualization showing STEREO's path go here.For the visualization showing STEREO's increasing coverage of the sun (visual 3) go here.For animations from the STEREO Teaser and stages of coverage, go here.For animations showing STEREO's 3D coverage of a CME go here. || ", "hits": 101 }, { "id": 10713, "url": "https://svs.gsfc.nasa.gov/10713/", "result_type": "Produced Video", "release_date": "2011-01-27T09:00:00-05:00", "title": "STEREO Sun360 Teaser", "description": "For the past 4 years, the two STEREO spacecraft have been moving away from the Earth and gaining a more complete view of the sun. On February 6, 2011, NASA will reveal the first ever images of the entire sun and discuss the importance of seeing all of our dynamic star. || ", "hits": 37 }, { "id": 3794, "url": "https://svs.gsfc.nasa.gov/3794/", "result_type": "Visualization", "release_date": "2010-11-09T00:00:00-05:00", "title": "STEREO in Stereo: April 8, 2007", "description": "Full Disk View: Image sequences taken April 8-9, 2007 by the EUVI telescopes on the two STEREO spacecraft (STEREO-B, left eye; STEREO-A, right eye). At this time the spacecraft were about 3.7 degrees apart. These images show the Sun in extreme ultraviolet light at a wavelength of 171 angstroms, highlighting parts of the Sun's atmosphere (the corona) at about one million degrees C. Note the bright active regions near the Sun's equator and the dark \"coronal holes\" at the north and south poles. These are features of the Sun's magnetic field. Coronal holes are areas where the magnetic field opens out to allow material to flow out into the solar system, while active regions are made up of strong, closed fields which bottle up hot plasma (ionized gas) close to the surface. This image was taken near the minimum in solar activity, so there are few active regions.Closeup View: Image sequences taken April 8-9, 2007 by the EUVI telescopes in the SECCHI imaging suites on the two STEREO spacecraft (STEREO-B, left eye; STEREO-A, right eye). At this time the spacecraft were about 3.7 degrees apart. Here we see a close up of solar magnetic active regions, flickering as they rotate out of sight around the sun. These are areas where the Sun's strong magnetic field bottles up million degree C plasma (ionized gas) low in the corona (the Sun's outer atmosphere). These images are taken at a wavelength of 171 angstroms (0.00000171 cm) in the extreme ultraviolet.Note for Large Displays: These movies are produced using images from STEREO where the angle between the spacecraft is getting larger than the optimum angle for stereo separation. While they work well on small displays, large-screens and projection systems can introduce significant distortions in the stereo effect which the audience may find uncomfortable. When doing large-screen projection, you may need to adjust the left-right image alignment for optimum viewing. However, this does not guarantee a distortion-free result. || ", "hits": 39 }, { "id": 3694, "url": "https://svs.gsfc.nasa.gov/3694/", "result_type": "Visualization", "release_date": "2010-03-24T00:00:00-04:00", "title": "A Comparative View of the Sun: SDO/AIA 193 and STEREO-B/EUVI 195", "description": "This movie compares the spatial and temporal resolutions of the SDO/AIA (Atmospheric Imaging Assembly) imager to the STEREO/EUVI (Extreme UltraViolet Imager) imager. STEREO-B/EUVI's highest resolution is 2048x2048 pixels with images taken about every 5 minutes for the 195 Ångstrom band. The SDO/AIA 193 band takes images at 4096x4096 pixels every twelve seconds!While STEREO's vantage point at this time is very different from SDO, we can still identify some features of the Active Region 1087 in these two views. EUVI shows the launch of the filament, while AIA reveals many finer details.This visualization is a companion piece to A Comparative View of the Sun: SDO/AIA 193 and SOHO/EIT 195. || ", "hits": 43 }, { "id": 3595, "url": "https://svs.gsfc.nasa.gov/3595/", "result_type": "Visualization", "release_date": "2009-07-27T00:00:00-04:00", "title": "Sentinels of the Heliosphere", "description": "Heliophysics is a term to describe the study of the Sun, its atmosphere or the heliosphere, and the planets within it as a system. As a result, it encompasses the study of planetary atmospheres and their magnetic environment, or magnetospheres. These environments are important in the study of space weather.As a society dependent on technology, both in everyday life, and as part of our economic growth, space weather becomes increasingly important. Changes in space weather, either by solar events or geomagnetic events, can disrupt and even damage power grids and satellite communications. Space weather events can also generate x-rays and gamma-rays, as well as particle radiations, that can jeopardize the lives of astronauts living and working in space.This visualization tours the regions of near-Earth orbit; the Earth's magnetosphere, sometimes called geospace; the region between the Earth and the Sun; and finally out beyond Pluto, where Voyager 1 and 2 are exploring the boundary between the Sun and the rest of our Milky Way galaxy. Along the way, we see these regions patrolled by a fleet of satellites that make up NASA's Heliophysics Observatory Telescopes. Many of these spacecraft do not take images in the conventional sense but record fields, particle energies and fluxes in situ. Many of these missions are operated in conjunction with international partners, such as the European Space Agency (ESA) and the Japanese Space Agency (JAXA).The Earth and distances are to scale. Larger objects are used to represent the satellites and other planets for clarity.Here are the spacecraft featured in this movie:Near-Earth Fleet:Hinode: Observes the Sun in multiple wavelengths up to x-rays. SVS pageRHESSI : Observes the Sun in x-rays and gamma-rays. SVS pageTRACE: Observes the Sun in visible and ultraviolet wavelengths. SVS pageTIMED: Studies the upper layers (40-110 miles up) of the Earth's atmosphere.FAST: Measures particles and fields in regions where aurora form.CINDI: Measures interactions of neutral and charged particles in the ionosphere. AIM: Images and measures noctilucent clouds. SVS pageGeospace Fleet:Geotail: Conducts measurements of electrons and ions in the Earth's magnetotail. Cluster: This is a group of four satellites which fly in formation to measure how particles and fields in the magnetosphere vary in space and time. SVS pageTHEMIS: This is a fleet of five satellites to study how magnetospheric instabilities produce substorms. SVS pageL1 Fleet: The L1 point is a Lagrange Point, a point between the Earth and the Sun where the gravitational pull is approximately equal. Spacecraft can orbit this location for continuous coverage of the Sun.SOHO: Studies the Sun with cameras and a multitude of other instruments. SVS pageACE: Measures the composition and characteristics of the solar wind. Wind: Measures particle flows and fields in the solar wind. Heliospheric FleetSTEREO-A and B: These two satellites observe the Sun, with imagers and particle detectors, off the Earth-Sun line, providing a 3-D view of solar activity. SVS pageHeliopause FleetVoyager 1 and 2: These spacecraft conducted the original 'Planetary Grand Tour' of the solar system in the 1970s and 1980s. They have now travelled further than any human-built spacecraft and are still returning measurements of the interplanetary medium. SVS pageThis enhanced, narrated visualization was shown at the SIGGRAPH 2009 Computer Animation Festival in New Orleans, LA in August 2009; an eariler version created for AGU was called NASA's Heliophysics Observatories Study the Sun and Geospace. || ", "hits": 88 }, { "id": 3495, "url": "https://svs.gsfc.nasa.gov/3495/", "result_type": "Visualization", "release_date": "2009-07-26T00:00:00-04:00", "title": "Heliophysics Great Observatory (Phase-1)", "description": "This visualization was an early piece of a larger, more complete visualization.To see the completed visualization please go HERE.This visualization shows many of the spacecraft in NASA's heliophysics great observatory fleet. The heliophysics fleet explores various aspects of the helipsphere including Earth's magnetosphere. To do this requires many spacecraft sampling data at many different places — close to the Earth, between the Earth and the Sun, and far away from the Earth.Phase-1 of this visualziation shows the orbits of spacecraft around the date when the Stereo spacecraft received lunar assists to get into solar orbit. This phase focuses on near-Earth orbiters and L1 orbiters. || ", "hits": 21 }, { "id": 20179, "url": "https://svs.gsfc.nasa.gov/20179/", "result_type": "Animation", "release_date": "2009-04-14T00:00:00-04:00", "title": "STEREO Reveals the Anatomy of a Solar Storm in 3-D", "description": "Observations from NASA's twin Solar Terrestrial Relations Observatory (STEREO) spacecraft allowed scientists, for the first time, to reveal the true size and shape of solar explosions known as coronal mass ejections, or CMEs, in three dimensions. || ", "hits": 24 }, { "id": 3591, "url": "https://svs.gsfc.nasa.gov/3591/", "result_type": "Visualization", "release_date": "2009-04-09T00:00:00-04:00", "title": "STEREO Visits the Lagrange Points - L4 and L5", "description": "The two STEREO spacecraft orbit the Sun in orbits slightly different from the Earth. STEREO A orbits between the Earth and the Sun, while STEREO-B orbits beyond the Earth and the Sun. As a result, relative to the Earth, STEREO-A appears to move ahead of the Earth, while STEREO-B falls behind the Earth, in their motion around the Sun.In this configuration, the two spacecraft are now passing near the two stable Lagrange Points, L4 and L5, of the Earth-Sun system. The STEREO spacecraft are imaging these regions in the hopes of finding material that might have been left over from the original formation of the Solar System.Revision Note: April 15, 2009:It was pointed out that L4 and L5 were reversed in the initial release of this visualization. These animations and stills were revised to reflect the corrections. We apologize for any inconvenience. || ", "hits": 194 }, { "id": 3570, "url": "https://svs.gsfc.nasa.gov/3570/", "result_type": "Visualization", "release_date": "2008-12-15T00:00:00-05:00", "title": "NASA's Heliophysics Observatories Study the Sun and Geospace", "description": "Heliophysics is a term to describe the study of the Sun, its atmosphere or the heliosphere, and the planets within it as a system. As a result, it encompasses the study of planetary atmospheres and their magnetic environment, or magnetospheres. These environments are important in the study of space weather.As a society dependent on technology, both in everyday life, and as part of our economic growth, space weather becomes increasingly important. Changes in space weather, either by solar events or geomagnetic events, can disrupt and even damage power grids and satellite communications. Space weather events can also generate x-rays and gamma-rays, as well as particle radiations, that can jeopardize the lives of astronauts living and working in space.This visualization tours the regions of near-Earth orbit; the Earth's magnetosphere, sometimes called geospace; the region between the Earth and the Sun; and finally out beyond Pluto, where Voyager 1 and 2 are exploring the boundary between the Sun and the rest of our Milky Way galaxy. Along the way, we see these regions patrolled by a fleet of satellites that make up NASA's Heliophysics Observatory Telescopes. Many of these spacecraft do not take images in the conventional sense but record fields, particle energies and fluxes in situ. Many of these missions are operated in conjunction with international partners, such as the European Space Agency (ESA) and the Japanese Space Agency (JAXA).The Earth and distances are to scale. Larger objects are used to represent the satellites and other planets for clarity.Here are the spacecraft featured in this movie:Near-Earth Fleet:Hinode: Observes the Sun in multiple wavelengths up to x-rays. SVS pageRHESSI : Observes the Sun in x-rays and gamma-rays. SVS pageTRACE: Observes the Sun in visible and ultraviolet wavelengths. SVS pageTIMED: Studies the upper layers (40-110 miles up) of the Earth's atmosphere.FAST: Measures particles and fields in regions where aurora form.CINDI: Measures interactions of neutral and charged particles in the ionosphere. AIM: Images and measures noctilucent clouds. SVS pageGeospace Fleet:Geotail: Conducts measurements of electrons and ions in the Earth's magnetotail. Cluster: This is a group of four satellites which fly in formation to measure how particles and fields in the magnetosphere vary in space and time. SVS pageTHEMIS: This is a fleet of five satellites to study how magnetospheric instabilities produce substorms. SVS pageL1 Fleet: The L1 point is a Lagrange Point between the Sun and the Earth. Spacecraft can orbit this location for continuous coverage of the Sun.SOHO: Studies the Sun with cameras and a multitude of other instruments. SVS pageACE: Measures the composition and characteristics of the solar wind. Wind: Measures particle flows and fields in the solar wind. Heliospheric FleetSTEREO-A and B: These two satellites observe the Sun, with imagers and particle detectors, off the Earth-Sun line, providing a 3-D view of solar activity. SVS pageHeliopause FleetVoyager 1 and 2: These spacecraft conducted the original 'Planetary Grand Tour' of the solar system in the 1970s and 1980s. They have now travelled further than any human-built spacecraft and are still returning measurements of the interplanetary medium. SVS pageA refined and narrated version of this visualization, Sentinels of the Heliosphere, is now available. || ", "hits": 94 }, { "id": 20128, "url": "https://svs.gsfc.nasa.gov/20128/", "result_type": "Animation", "release_date": "2007-10-02T00:00:00-04:00", "title": "Comet Encke dataset from STEREO", "description": "Comet Encke data from STEREO || Comet Encke || CE_raw000100002_print.jpg (1024x576) [101.2 KB] || CE_raw0001_web.png (320x180) [141.4 KB] || CE_raw0001_thm.png (80x40) [9.9 KB] || 1280x720_16x9_60p (1280x720) [32.0 KB] || CE_raw_720p.m2v (1280x720) [44.8 MB] || CE_raw_720p.webmhd.webm (960x540) [31.4 MB] || a010177_CE_raw_720p.mp4 (640x360) [3.8 MB] || CE_raw_512x288.m1v (512x288) [7.3 MB] || ", "hits": 29 }, { "id": 20115, "url": "https://svs.gsfc.nasa.gov/20115/", "result_type": "Animation", "release_date": "2007-10-01T00:00:00-04:00", "title": "Comet Encke collides with a CME", "description": "NASA's Solar Terrestrial Relations Observatory (STEREO) satellite captured the first images ever of a collision between a coronal mass ejection and a comet. || ", "hits": 40 }, { "id": 20117, "url": "https://svs.gsfc.nasa.gov/20117/", "result_type": "Animation", "release_date": "2007-10-01T00:00:00-04:00", "title": "Comet Encke hit by CME", "description": "Comet Encke being hit by CME || CE_CME000100002_print.jpg (1024x576) [32.0 KB] || CE_CME0001_web.png (320x180) [202.7 KB] || CE_CME0001_thm.png (80x40) [15.5 KB] || 1280x720_16x9_60p (1280x720) [64.0 KB] || CE_CME_720p.m2v (1280x720) [40.2 MB] || CE_CME_720p.webmhd.webm (960x540) [4.9 MB] || a010161_CE_CME_720p.mp4 (640x360) [4.1 MB] || CE_CME_512x288.m1v (512x288) [7.4 MB] || ", "hits": 33 }, { "id": 20127, "url": "https://svs.gsfc.nasa.gov/20127/", "result_type": "Animation", "release_date": "2007-10-01T00:00:00-04:00", "title": "Closeup of Comet Encke from STEREO", "description": "This is a closer view of Comet Encke's collision with a Coronal Mass Ejection (CME) as seen by the STEREO satellite on April 20, 2007. The collision is notable because it completely removed Encke's tail. The blue color here is a gradient added to help make the comet and CME more visible. || ", "hits": 41 }, { "id": 3423, "url": "https://svs.gsfc.nasa.gov/3423/", "result_type": "Visualization", "release_date": "2007-04-25T12:00:00-04:00", "title": "First 3-D Stereo from STEREO: EUVI 171 Angstroms (Full Disk View)", "description": "This movie shows the Sun from the two STEREO spacecraft using the 171 || ", "hits": 31 }, { "id": 3424, "url": "https://svs.gsfc.nasa.gov/3424/", "result_type": "Visualization", "release_date": "2007-04-25T12:00:00-04:00", "title": "First 3-D Stereo from STEREO: 284 Angstroms (Active Region)", "description": "This movie shows the Sun from the two STEREO spacecraft using the 284 angstrom filter in the Extreme UltraViolet Imager (EUVI). This filter reveals ionized iron (Fe+14=Fe XV), which forms at temperatures above 2x106K, and flows along the magnetic field lines of the solar active regions. New regions come into view as the Sun rotates. || ", "hits": 19 }, { "id": 3425, "url": "https://svs.gsfc.nasa.gov/3425/", "result_type": "Visualization", "release_date": "2007-04-25T12:00:00-04:00", "title": "First 3-D Stereo from STEREO: EUVI 284 Angstroms (Full Disk View)", "description": "This movie shows the Sun from the two STEREO spacecraft using the 284 angstrom filter in the Extreme UltraViolet Imager (EUVI). This filter reveals ionized iron (Fe+14=Fe XV), which forms at temperatures above 2x106K, and flows along the magnetic field lines of the solar active regions. New active regions come into view as the Sun rotates. || ", "hits": 18 }, { "id": 3426, "url": "https://svs.gsfc.nasa.gov/3426/", "result_type": "Visualization", "release_date": "2007-04-25T12:00:00-04:00", "title": "First 3-D Stereo from STEREO: 304 Angstroms (South Pole View)", "description": "This movie shows the Sun from the two STEREO spacecraft using the 304 || ", "hits": 24 }, { "id": 3427, "url": "https://svs.gsfc.nasa.gov/3427/", "result_type": "Visualization", "release_date": "2007-04-25T12:00:00-04:00", "title": "First 3-D Stereo from STEREO: EUVI 171 Angstroms (South Pole View)", "description": "This movie shows the south pole of the Sun from the two STEREO spacecraft using the 171 angstrom filter in the Extreme UltraViolet Imager (EUVI). This filter reveals ionized iron (Fe+8=Fe IX, Fe+9=Fe X) which forms at temperatures above 1.3x106K, and flows along the magnetic field lines of the solar active regions. New active regions come into view as the Sun rotates. || ", "hits": 12 }, { "id": 3428, "url": "https://svs.gsfc.nasa.gov/3428/", "result_type": "Visualization", "release_date": "2007-04-25T12:00:00-04:00", "title": "First 3-D Stereo from STEREO: EUVI 195 Angstroms (Full Disk View)", "description": "This movie shows the Sun from the two STEREO spacecraft using the 195 || ", "hits": 59 }, { "id": 3421, "url": "https://svs.gsfc.nasa.gov/3421/", "result_type": "Visualization", "release_date": "2007-04-23T00:00:00-04:00", "title": "First 3-D stereo from STEREO: EUVI 171 Ångströms (Active Region)", "description": "This movie shows the Sun from the two STEREO spacecraft using the 171 ? filter in the Extreme UltraViolet Imager (EUVI). This filter reveals ionized iron (Fe+8=Fe IX, Fe+9=Fe X) which forms at temperatures above 1.3x106K, and flows along the magnetic field lines of the solar active regions. New regions of solar activity come into view as the Sun rotates left to right. || ", "hits": 21 }, { "id": 3422, "url": "https://svs.gsfc.nasa.gov/3422/", "result_type": "Visualization", "release_date": "2007-04-23T00:00:00-04:00", "title": "First 3-D stereo from STEREO: EUVI 304", "description": "This movie shows the Sun from the two STEREO spacecraft using the 304 || ", "hits": 23 }, { "id": 20103, "url": "https://svs.gsfc.nasa.gov/20103/", "result_type": "Animation", "release_date": "2007-04-17T12:00:00-04:00", "title": "STEREO Fly-by", "description": "This animation shows a stereoscopic 3D fly-by of STEREO A spacecraft. || This animation shows a stereoscopic 3D fly-by of STEREO A spacecraft. || STEREO.069000652_print.jpg (1024x576) [54.0 KB] || STEREO.0690_web.png (320x180) [241.3 KB] || Stereo.webmhd.webm (960x540) [5.7 MB] || Stereo.mov (720x405) [54.2 MB] || ", "hits": 27 }, { "id": 20104, "url": "https://svs.gsfc.nasa.gov/20104/", "result_type": "Animation", "release_date": "2007-04-17T00:00:00-04:00", "title": "What is 3D?", "description": "This simplistic animation shows the concept of 3d imaging of the SUN with the STEREO spacecraft. || How do the STEREO spacecraft make 3D images? || 3D048000402_print.jpg (1024x576) [61.5 KB] || 3D0480_web.png (320x180) [233.6 KB] || 3D0480_thm.png (80x40) [14.1 KB] || STEREO_3D.mpg (1280x720) [84.4 MB] || 1280x720_16x9_59.94p (1280x720) [64.0 KB] || STEREO_3D.webmhd.webm (960x540) [1.4 MB] || STEREO_3D.mp4 (720x405) [47.2 MB] || STEREO_3D.mov (720x405) [31.6 MB] || ", "hits": 16 }, { "id": 20102, "url": "https://svs.gsfc.nasa.gov/20102/", "result_type": "Animation", "release_date": "2007-04-09T00:00:00-04:00", "title": "Tour of the Magnetsphere in 3D", "description": "This animation shows the Earth's magnetosphere based on a magnetosphere model from the Community Coordinated Modeling Center at GSFC. || 3-D Anaglyph || SELeft.030000152_print.jpg (1024x576) [60.4 KB] || SELeft.0300_web.png (320x180) [83.5 KB] || SELeft.0300_thm.png (80x40) [5.5 KB] || MagnetosphereAng.webmhd.webm (960x540) [9.0 MB] || MagnetosphereAng.mp4 (720x405) [153.3 MB] || MagnetosphereAng.mov (720x405) [180.2 MB] || ", "hits": 31 }, { "id": 3405, "url": "https://svs.gsfc.nasa.gov/3405/", "result_type": "Visualization", "release_date": "2007-03-01T00:00:00-05:00", "title": "STEREO Panoramic View", "description": "The STEREO mission presents a new view of the space between the Earth and the Sun.This view from the STEREO-A satellite, demonstrates the broad range of sky coverage by the five cameras of the SECCHI instrument. || ", "hits": 28 }, { "id": 3406, "url": "https://svs.gsfc.nasa.gov/3406/", "result_type": "Visualization", "release_date": "2007-03-01T00:00:00-05:00", "title": "STEREO Coronal Mass Ejection: From the EUVI to HI-2", "description": "This movie collects imagery from SOHO and STEREO-A of a coronal mass ejection (CME) during January of 2007. The instruments in this view, from left to right, are STEREO/HI-1, STEREO/HI-2, SOHO/LASCO/C3, SOHO/LASCO/C2, and STEREO/EUVI. The Heliospheric Imager, HI-2, shows some of the tail of comet McNaught. The dark trapezoidal shape on the left edge of the image in HI-2 is the Earth occulter which will block out the disk of the Earth when it moves into view (since the planet will appear so bright as to saturate the detectors). Due to ongoing work with the STEREO coronagraphs, COR1 and COR2, the SOHO/LASCO coronagraphs are used for this movie. The blue Sun in the center of the coronagraphs is STEREO/EUVI ultraviolet images.There is a 22 hour gap in the data coverage for HI-2 which creates the appearance of a jump in the playback.These are not standard images but are called 'running difference' images which highlight changes in the view. White pixels correspond to increases in brightness, while dark pixels reflect a decrease in brightness, with respect to the immediately previous image.'Running differencing' generates some unusual effects. For example, the mottled background is created by the motion of the stars through the field-of-view as the spacecraft pointing direction slowly changes (the Andromeda galaxy is the oblong 'smudge' near the upper left corner). The planets Venus (right edge of HI-2) and Mercury are visible (near center of HI-1), their column of pixels saturated due to their brightness.STEREO: Solar TErrestrial RElations ObservatorySOHO: SOlar Heliospheric ObservatoryLASCO: Large Angle and Spectrometric CoronagraphEUVI: Extreme UltraViolet Imager || ", "hits": 33 }, { "id": 3407, "url": "https://svs.gsfc.nasa.gov/3407/", "result_type": "Visualization", "release_date": "2007-03-01T00:00:00-05:00", "title": "STEREO's Extreme UltraViolet Imager (EUVI)", "description": "At a pixel resolution of 2048x2048, the STEREO EUVI instrument provides views of the Sun in ultraviolet light that rivals the full-disk views of SOHO/EIT. This image is through the 171 angstrom (ultraviolet) filter which is characteristic of iron ions (missing eight and nine electrons) at 1 million degrees. There is a short data gap in the latter half of the movie that creates a freeze and then jump in the data view. STEREO: Solar TErrestrial RElations Observatory SOHO: SOlar Heliospheric Observatory EIT: Extreme ultraviolet Imaging Telescope EUVI: Extreme UltraViolet Imager || ", "hits": 64 }, { "id": 3364, "url": "https://svs.gsfc.nasa.gov/3364/", "result_type": "Visualization", "release_date": "2007-02-07T00:00:00-05:00", "title": "STEREO's Routes to Solar Orbits", "description": "The two STEREO spacecraft, A (red path) and B (yellow path), are launched from the Earth into a highly eccentric orbit with an apogee that reaches the orbit of the Moon. Once in this orbit, the trajectories are adjusted so they can receive gravity-assists from the Moon. The gravity assist will send them both into heliocentric orbits, one spacecraft ahead of the Earth and the other behind the Earth.This trajectory was generated using a spacecraft ephemeris generated shortly after launch. || ", "hits": 89 }, { "id": 20064, "url": "https://svs.gsfc.nasa.gov/20064/", "result_type": "Animation", "release_date": "2005-04-27T12:00:00-04:00", "title": "Model for Coronal Mass Ejections", "description": "A coronal mass ejection (CME) is a massive burst of solar wind, other light isotope plasma, and magnetic fields rising above the solar corona or being released into space. || CME_640x480_pre.00002_print.jpg (1024x768) [45.1 KB] || CME_640x480_thm.png (80x40) [4.5 KB] || CME_640x480_pre.jpg (320x240) [3.1 KB] || CME_320x240_pre.jpg (320x240) [2.9 KB] || CME_320x240_pre_searchweb.jpg (320x180) [11.8 KB] || CME_NTSC.webmhd.webm (960x540) [1.1 MB] || 720x486_4x3_30 (720x486) [32.0 KB] || CME_640x480.mpg (640x480) [10.7 MB] || CME_NTSC.m2v (720x480) [17.2 MB] || a010066_seq.mpg (720x480) [8.2 MB] || a010066_H264_640x480.mp4 (640x480) [7.1 MB] || CME_320x240.mpg (320x240) [2.8 MB] || ", "hits": 34 }, { "id": 20062, "url": "https://svs.gsfc.nasa.gov/20062/", "result_type": "Animation", "release_date": "2005-04-26T12:00:00-04:00", "title": "STEREO Watches the Active Sun", "description": "The Sun belches out gas at thousands of kilometers per second as the STEREO A spacecraft looks on. || stereo_640x480_pre.00002_print.jpg (1024x768) [47.0 KB] || stereo_640x480_pre.jpg (320x240) [4.4 KB] || stereo_320x240_pre.jpg (320x240) [4.2 KB] || STEREO_flyby_720p.m2v (1280x720) [12.0 MB] || 1280x720_16x9_30 (1280x720) [32.0 KB] || 1920x1080_16x9_30 (1920x1080) [64.0 KB] || a010064_H264_1280x720.mp4 (1280x720) [7.9 MB] || stereo_NTSC.webmhd.webm (960x540) [4.5 MB] || 720x486_4x3_30 (720x486) [32.0 KB] || stereo_640x480.mpg (640x480) [12.0 MB] || stereo_NTSC.m2v (720x480) [19.2 MB] || a010064_1280x720_seq.mpg (720x480) [14.5 MB] || a010064_720x486_seq.mpg (720x480) [16.3 MB] || a010064_H264_640x480.mp4 (640x480) [7.7 MB] || stereo_320x240.mpg (320x240) [3.1 MB] || STEREO_flyby_512x288.mpg (512x288) [3.1 MB] || ", "hits": 33 }, { "id": 20058, "url": "https://svs.gsfc.nasa.gov/20058/", "result_type": "Animation", "release_date": "2005-04-12T12:00:00-04:00", "title": "STEREO On-Station", "description": "The STEREO spacecraft will observed the Sun and the region between the Sun and the Earth from the Lagrange Points of the Sun-Earth system. || ", "hits": 38 }, { "id": 20059, "url": "https://svs.gsfc.nasa.gov/20059/", "result_type": "Animation", "release_date": "2005-04-12T12:00:00-04:00", "title": "STEREO Enroute: The Lunar Flyby", "description": "STEREO A and B get a gravity-assist for their trajectory in a fly-by of the Moon. || ", "hits": 64 }, { "id": 20060, "url": "https://svs.gsfc.nasa.gov/20060/", "result_type": "Animation", "release_date": "2005-04-12T12:00:00-04:00", "title": "STEREO Spacecraft Beauty-Pass", "description": "A close-up view of a STEREO satellite. || ", "hits": 32 }, { "id": 20061, "url": "https://svs.gsfc.nasa.gov/20061/", "result_type": "Animation", "release_date": "2005-04-12T12:00:00-04:00", "title": "STEREO Enroute: Earth Flyby", "description": "STEREO A gets a final boost in velocity with a gravity-assist by the Earth. || ", "hits": 35 } ] }