{ "count": 16, "next": null, "previous": null, "results": [ { "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": 33 }, { "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": 39 }, { "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": 34 }, { "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": 32 }, { "id": 12074, "url": "https://svs.gsfc.nasa.gov/12074/", "result_type": "Produced Video", "release_date": "2015-12-03T13:00:00-05:00", "title": "20 Years In Space", "description": "The sun-observing SOHO spacecraft celebrates two decades of space-based science. || cf-1024.jpg (1024x576) [113.9 KB] || cf-1024_print.jpg (1024x576) [119.4 KB] || cf-1024_searchweb.png (320x180) [70.6 KB] || cf-1024_web.png (320x180) [70.6 KB] || cf-1024_thm.png (80x40) [16.1 KB] || ", "hits": 43 }, { "id": 12052, "url": "https://svs.gsfc.nasa.gov/12052/", "result_type": "Produced Video", "release_date": "2015-12-01T10:00:00-05:00", "title": "SOHO Celebrates 20 Years of Space-based Science", "description": "Dr. Joe Gurman of NASA's Goddard Space Flight Center provides commentary on selected shots from SOHO's 20 years in space.Watch this video on YouTube || SOHO20thumb.jpg (1280x720) [108.1 KB] || SOHO20thumb_searchweb.png (320x180) [119.7 KB] || SOHO20thumb_thm.png (80x40) [19.1 KB] || APPLE_TV_12952_SOHO_20th_anniversary_ws_appletv.m4v (1280x720) [199.6 MB] || YOUTUBE_HQ_12952_SOHO_20th_anniversary_ws_youtube_hq.mov (1920x1080) [2.5 GB] || 12952_SOHO_20th_anniversary_ws-H264_Best_1920x1080_59.94.mov (1920x1080) [4.0 GB] || YOUTUBE_HQ_12952_SOHO_20th_anniversary_ws_youtube_hq.webm (1920x1080) [45.1 MB] || SOHO20.en_US.srt [7.6 KB] || 12952_SOHO_20th_anniversary_ws.key [200.0 MB] || 12952_SOHO_20th_anniversary_ws.pptx [199.8 MB] || 12952_SOHO_20th_anniversary_ws_lowres.mp4 (480x272) [52.9 MB] || NASA_PODCAST_12952_SOHO_20th_anniversary_ws_ipod_sm.mp4 (320x240) [67.5 MB] || ", "hits": 111 }, { "id": 4172, "url": "https://svs.gsfc.nasa.gov/4172/", "result_type": "Visualization", "release_date": "2014-07-23T00:00:00-04:00", "title": "As Seen by SDO: The Carrington-Class CME of 2012", "description": "While SDO did not have a direct view of the region which launched the large coronal mass ejection (CME) of July 23, 2012, it still managed to catch a glimpse of the solar plasma as it launched into space. The eruption becomes visible at timestamp 02:14:24 UTC in the lower right side of the movies below. || ", "hits": 86 }, { "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": 205 }, { "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": 75 }, { "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": 41 }, { "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": 169 }, { "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": 55 }, { "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": 131 }, { "id": 3336, "url": "https://svs.gsfc.nasa.gov/3336/", "result_type": "Visualization", "release_date": "2006-04-01T00:00:00-05:00", "title": "The Visible Sun Revisited", "description": "Scientists working with the SOHO/MDI instrument have continued to improve on previous results. Since the first release (SOHO/MDI's 'Window' Through the Sun), improvements in helioseismology techniques have enabled them to extract more information from the same data. In this case, sonogram-type imaging of the solar far side (the side of the Sun NOT facing the Earth) has been improved to provide a more complete view of the farside. This is important in space weather forecasting as it enables us to see large sunspots and active regions before they are visible directly from the Earth. Active regions are a source of solar flares which can send high-energy protons towards the Earth. These protons can damage satellite electronics, endangering communications and weather forecasting, and are a health threat to astronauts. || ", "hits": 37 }, { "id": 2495, "url": "https://svs.gsfc.nasa.gov/2495/", "result_type": "Visualization", "release_date": "2002-07-25T12:00:00-04:00", "title": "SOHO/EIT views solar 'Grand Slam'", "description": "A full view of the sun at 195 angstroms from SOHO/EIT. The time covers July 15-23, 2002. Four X-class flares erupted: an X3.0 on July 15, an X1.8 on July 18, a X3.3 on July 20 and an X4.0 on July 23. || ", "hits": 31 }, { "id": 2496, "url": "https://svs.gsfc.nasa.gov/2496/", "result_type": "Visualization", "release_date": "2002-07-25T12:00:00-04:00", "title": "SOHO/EIT Views Solar 'Grand Slam' with Zoom", "description": "A view of the sun at 195 angstroms from SOHO/EIT. The time covers July 15-23, 2002. Four X-class flares erupted: an X3.0 on July 15, an X1.8 on July 18, a X3.3 on July 20 and an X4.0 on July 23. The version zooms in slightly to the flare region. || ", "hits": 39 } ] }