{ "count": 19, "next": null, "previous": null, "results": [ { "id": 14229, "url": "https://svs.gsfc.nasa.gov/14229/", "result_type": "Produced Video", "release_date": "2022-10-21T12:00:00-04:00", "title": "Sun Time Science: Big Sun, Little Moon", "description": "Explore how solar eclipses can happen by using items from your own home in this do it yourself science activity.Credit: NASA's Goddard Space Flight CenterMusic: \"Icelandic Arpeggios\" by DivKid [Youtube Audio Library]Complete transcript available. || Big_Sun_Still.png (1792x1056) [843.2 KB] || Big_Sun_Still_print.jpg (1024x603) [54.2 KB] || Big_Sun_Still_searchweb.png (320x180) [48.2 KB] || Big_Sun_Still_thm.png (80x40) [7.8 KB] || Big_Sun_Little_Moon_3.0_MP4.mp4 (1920x1080) [132.1 MB] || Big_Sun_Little_Moon_3.0_MP4.webm (1920x1080) [12.9 MB] || Big_Sun_Little_Moon_Final.en_US.srt [3.2 KB] || Big_Sun_Little_Moon_Final.en_US.vtt [3.1 KB] || ", "hits": 31 }, { "id": 4906, "url": "https://svs.gsfc.nasa.gov/4906/", "result_type": "Visualization", "release_date": "2021-05-03T15:00:00-04:00", "title": "May 26, 2021 Total Lunar Eclipse: Visibility Map", "description": "An animated map showing where the May 26, 2021 lunar eclipse is visible. || map.1362_print.jpg (1024x576) [100.8 KB] || map.1362_searchweb.png (320x180) [46.5 KB] || map.1362_thm.png (80x40) [5.2 KB] || eclipse_202105_vismap_1080p30.mp4 (1920x1080) [14.1 MB] || eclipse_202105_vismap_720p30.mp4 (1280x720) [7.2 MB] || eclipse_202105_vismap_720p30.webm (1280x720) [7.8 MB] || eclipse_202105_vismap_2160p30.mp4 (3840x2160) [44.6 MB] || eclipse_2021_vismap_360p30.mp4 (640x360) [2.5 MB] || map (3840x2160) [0 Item(s)] || eclipse_202105_vismap_1080p30.mp4.hwshow [195 bytes] || ", "hits": 68 }, { "id": 13458, "url": "https://svs.gsfc.nasa.gov/13458/", "result_type": "Produced Video", "release_date": "2019-12-09T13:00:00-05:00", "title": "Operation IceBridge - A68 Ice Island", "description": "Operation IceBridge, NASA’s longest-running aerial survey of polar ice, flew over the northern Antarctic Peninsula on Oct. 16, 2018. During the survey, designed to assess changes in the ice height of several glaciers draining into the Larsen A, B and C embayments, IceBridge senior support scientist Jeremy Harbeck spotted a very sharp-angled, tabular iceberg floating among sea ice just off of the Larsen C ice shelf. || ", "hits": 48 }, { "id": 12901, "url": "https://svs.gsfc.nasa.gov/12901/", "result_type": "Produced Video", "release_date": "2018-05-09T13:00:00-04:00", "title": "NASA Spacecraft Finds New Magnetic Process in Turbulent Space", "description": "Though close to home, the space immediately around Earth is full of hidden secrets and invisible processes. In a new discovery reported in the journal Nature, scientists working with NASA’s Magnetospheric Multiscale spacecraft — MMS — have uncovered a new type of magnetic event in our near-Earth environment by using an innovative technique to squeeze extra information out of the data.Magnetic reconnection is one of the most important processes in the space — filled with charged particles known as plasma — around Earth. This fundamental process dissipates magnetic energy and propels charged particles, both of which contribute to a dynamic space weather system that scientists want to better understand, and even someday predict, as we do terrestrial weather. Reconnection occurs when crossed magnetic field lines snap, explosively flinging away nearby particles at high speeds. The new discovery found reconnection where it has never been seen before — in turbulent plasma. || ", "hits": 78 }, { "id": 12770, "url": "https://svs.gsfc.nasa.gov/12770/", "result_type": "Produced Video", "release_date": "2018-03-19T18:00:00-04:00", "title": "Harmonized Landsat 8 and Sentinel-2 Data", "description": "Landsat 8 and Sentinel-2 satellites have spectral and spatial similarities that make using their data together possible. When the data are used together observations can be more timely and accurate. The HLS project is an effort to \"harmonize\" the data of the two satellite programs so that they can be more easily used in unison. The ultimate goal is to obtain seamless 2-3 day global surface reflectance coverage at 30 meters that removes residual differences between the sensors due to spectral bandpass and view geometry. Currently the v1.3 HLS data set encompasses 82 global test sites that cover about 7% of the global land area.Using the processing power of the NASA Earth Exchange (NEX) computer cluster at NASA Ames, the HLS workflow atmospherically corrects data from the satellites, geographically tiles the Landsat data in a manor matching the Sentinel-2 tiling, and then corrects for different sensor view angles (Bidirectional Reflectance Distribution Function, or BRDF) and does a slight band pass adjustment for the Sentinel-2 data to create the harmonized 30-meter product.The HLS team includes researchers from NASA Goddard Space Flight Center, the University of Maryland, and NASA Ames Research Center. || ", "hits": 94 }, { "id": 30890, "url": "https://svs.gsfc.nasa.gov/30890/", "result_type": "Hyperwall Visual", "release_date": "2017-08-03T00:00:00-04:00", "title": "Landsat 'Sees in the Dark' the Evolution of Antarctica’s Delaware-Sized Iceberg", "description": "Evolution of Larsen C ice shelf leading up to and following the calving || larsencriftevolution20162017v5.png (3427x1650) [5.0 MB] || larsencriftevolution20162017v5_print.jpg (1024x493) [158.0 KB] || larsencriftevolution20162017v5_searchweb.png (320x180) [69.6 KB] || larsencriftevolution20162017v5_thm.png (80x40) [6.3 KB] || ", "hits": 84 }, { "id": 12200, "url": "https://svs.gsfc.nasa.gov/12200/", "result_type": "Produced Video", "release_date": "2017-07-25T15:00:00-04:00", "title": "Solar Eclipse Safety Images", "description": "People watch a partial eclipse in Belfast, Northern Ireland, on Mar. 20, 2015. Credit: Robin Cordiner || RobinCordiner.jpg (926x618) [118.5 KB] || RobinCordinerlg_print.jpg (1024x683) [681.3 KB] || RobinCordinerlg.jpg (7065x4715) [22.0 MB] || RobinCordinerlg_searchweb.png (320x180) [98.8 KB] || RobinCordinerlg_web.png (320x213) [114.5 KB] || RobinCordinerlg_thm.png (80x40) [6.7 KB] || ", "hits": 86 }, { "id": 12484, "url": "https://svs.gsfc.nasa.gov/12484/", "result_type": "Produced Video", "release_date": "2017-07-24T12:00:00-04:00", "title": "Antarctica's Giant Iceberg", "description": "An iceberg the size of Delaware recently broke off from Antarctica. || nasa-worldview-2017-07-12-thermal-detail-label_cover_16x9.jpg (1280x720) [253.1 KB] || nasa-worldview-2017-07-12-thermal-detail-label_cover_16x9_1024x576.jpg (1024x576) [175.5 KB] || ", "hits": 42 }, { "id": 12633, "url": "https://svs.gsfc.nasa.gov/12633/", "result_type": "Produced Video", "release_date": "2017-07-12T11:00:00-04:00", "title": "Crack in Larsen C Ice Shelf", "description": "Thermal wavelength image of a large iceberg, which has calved off the Larsen C ice shelf. Darker colors are colder, and brighter colors are warmer, so the rift between the iceberg and the ice shelf appears as a thin line of slightly warmer area. Image from July 12, 2017, from the MODIS instrument on NASA's Aqua satellite.Credit: NASA Worldview || nasa-worldview-2017-07-12-thermal-detail-label.jpg (1280x800) [109.6 KB] || nasa-worldview-2017-07-12-thermal-detail.jpg (1280x800) [76.5 KB] || ", "hits": 40 }, { "id": 12449, "url": "https://svs.gsfc.nasa.gov/12449/", "result_type": "Produced Video", "release_date": "2016-12-08T16:00:00-05:00", "title": "IceBridge images of crack in Larsen C Ice Shelf", "description": "Flying low over the Earth’s southernmost continent, Operation IceBridge is wrapping up its eighth consecutive field season of mapping the ice sheet and glaciers of Antarctica, as well as the surrounding sea ice. With more than 300 hours logged in the air over 24 science flights, the mission is considering 2016 one of the most successful seasons yet. || IceBridgeAnt16_4.00600_print.jpg (1024x576) [97.3 KB] || IceBridgeAnt16_4.00600_searchweb.png (320x180) [82.8 KB] || IceBridgeAnt16_4.00600_web.png (320x180) [82.8 KB] || IceBridgeAnt16_4.00600_thm.png (80x40) [6.6 KB] || IceBridgeAnt16_4.mp4 (1920x1080) [163.1 MB] || IceBridgeAnt16_4.webm (1920x1080) [16.3 MB] || GSFC_20161208_IceBridge_m12449_IceBridge.en_US.vtt [3.0 KB] || GSFC_20161208_IceBridge_m12449_IceBridge.en_US.srt [3.1 KB] || ", "hits": 32 }, { "id": 4364, "url": "https://svs.gsfc.nasa.gov/4364/", "result_type": "Visualization", "release_date": "2015-09-29T18:00:00-04:00", "title": "Educator Webinar: Mapping Earth's Water Cycle with NASA Scientists (Recorded)", "description": "Earth Science Week Webinar - 2014 on Vimeo!View the Concept Maps: Map 1 and Map 2 || Example flood image. || webinar_still_searchweb.png (320x180) [60.3 KB] || webinar_still_thm.png (80x40) [4.4 KB] || ESW-700x498-300x213.jpg (300x213) [14.1 KB] || ", "hits": 15 }, { "id": 11076, "url": "https://svs.gsfc.nasa.gov/11076/", "result_type": "Produced Video", "release_date": "2012-09-06T00:00:00-04:00", "title": "America On Fire", "description": "For more than a decade, NASA satellites have monitored fires around the world. The data that is collected provides scientists with information about the location of fires, how much land is burned and how fires are responding to changes in climate. Dry conditions, for example, fueled a number of wildfires in the United States in recent years. From 2009 to 2011, more than 200,000 fires burned 18 million acres, or roughly all of Massachusetts, Vermont, New Hampshire, Delaware and Rhode Island. Exacerbated by ongoing drought conditions in the South, the state of Texas experienced an extreme wildfire season in 2011 that consumed more than 2.7 million acres. The visualization shows fires detected in the United States from July 2002 through July 2011 by the MODIS instrument aboard NASA's Aqua and Terra satellites. Look for fires that reliably burn each year in western states and across the Southeast. || ", "hits": 32 }, { "id": 3845, "url": "https://svs.gsfc.nasa.gov/3845/", "result_type": "Visualization", "release_date": "2011-06-29T00:00:00-04:00", "title": "Discover-AQ: Targeted Airborne and Ground-Based Observations of Near-Surface Pollution", "description": "The project is called DISCOVER-AQ, which stands for Deriving Information on Surface conditions from Column and Vertically Resolved Observations Relevant to Air Quality. Discover - AQ is a four-year campaign to improve the use of satellites to monitor air quality for public health and environmental benefit. The fundamental challenge for satellites measuring air quality is to distinguish between pollution near the surface and pollution higher in the atmosphere. Scientific questions remain about the vertical distribution of pollutants. How far up in the atmosphere are morning and evening spikes in pollution associated with rush hour noticeable? How does ozone, which peaks near the surface in afternoon, behave at other altitudes throughout the day? When is the best time of the day for satellites to measure various pollutants?Measurements from aircraft, in combination with ground-based measurements, offer a key perspective that makes such distinctions easier to make. The problem is particularly pronounced for pollutants that are abundant at the surface and higher in the atmosphere. For example, a \"Code Red\" air-quality day during the summer might produce very high concentrations of ozone in the bottom few kilometers of the atmosphere, yet generate a change of a mere 1 or 2 percent to a total column of ozone. Studies suggest that discrepancies of as much as 30 to 50 percent exist between estimates of ground nitrogen dioxide inferred from the Ozone Monitoring Instrument(OMI), an instrument on NASA's Aura satellite launched in 2004, and measurements from ground-based instruments. DISCOVER-AQ will address such problems by helping researchers develop a three-dimensional view of how air pollutants are distributed and move between different levels of the atmosphere throughout the day.A phalanx of ground-based instruments will offer a critical view of the same patches of air the aircraft are monitoring from above. While NASA sponsors certain ground instruments, other institutions including the Environmental Protection Agency, the Maryland Department of the Environment, Howard University, and Pennsylvania State University manage the instruments at the ground stations.Scientists will use information collected during the DISCOVER-AQ campaign to improve measurements from existing satellites and to help establish parameters for future NASA satellite missions that will monitor air quality. More information is available at http://www.nasa.gov/mission_pages/discover-aq/index.html. || ", "hits": 24 }, { "id": 3472, "url": "https://svs.gsfc.nasa.gov/3472/", "result_type": "Visualization", "release_date": "2008-04-21T08:00:00-04:00", "title": "Chesapeake Bay Flyover and Watershed Region", "description": "The watershed that drains into the Chesapeake Bay is a huge expanse that extends 64,000 miles into six states across North America (New York, Pensylvania, Maryland, Delaware, Virginia, and West Virginia) and the District of Columbia. This visualization overlays the full watershed onto a Landsat satellite visualization of the Bay area. The eight different distinctly colored regions indicate the Chesapeake's major subwatersheds. These subwatershed regions are: Susquehanna, Potomac, Patuxent, MD West Shore, Rapahhannock, Eastern Shore, James and York. This visualization is an extension of the Chesapeake Bay Flyover (#3446) in order to demonstrate the entire Chesapeake Bay Watershed region. The imagery utilized for this animation is a false-color Chesapeake Bay Landsat-7 Mosaic (#3473) composed of eight scenes acquired between 1999-2002, which were put together and color corrected to resemble natural looking colors.Data Notes:The mosaic was created by EarthSat under contract with NASA as part of the GeoCover 2000 product. All images used in GeoCover were acquired by Landsat-7 during the period of 1999-2002. The pixel size of the full resolution image represents 14.25 m on the ground. The Chesapeake Bay mosaic uses portions of eight Landsat-7 scenes. Below you will find a listing of the eight Landsat 7 images that were put together to create the composite image. Landsat scenes are organized by a Path and Row number according to the Worldwide Reference System. (To learn more about Landsat's Worldwide Reference System, please visit: http://landsat.gsfc.nasa.gov/about/wrs.html)Scenes used in the Chesapeake Bay mosaic: Landsat-7 WRS Path 15-Row 32 acquired on Oct. 05, 2001 Landsat-7 WRS Path 14-Row 32 acquired on Sept. 23, 1999 Landsat-7 WRS Path 15-Row 33 acquired on October 05, 2001 Landsat-7 WRS Path 14-Row 33 acquired on July 10, 2001Landsat-7 WRS Path 15-Row 34 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 34 acquired on July 10, 2001 Landsat-7 WRS Path 15-Row 35 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 35 acquired on Sept. 23, 1999 || ", "hits": 32 }, { "id": 3477, "url": "https://svs.gsfc.nasa.gov/3477/", "result_type": "Visualization", "release_date": "2008-04-21T08:00:00-04:00", "title": "Chesapeake Bay Watershed Region (short version)", "description": "The watershed that drains into the Chesapeake Bay is a huge expanse that extends 64,000 miles into five states across North America (New York, Pensylvania, Maryland, Delaware, Virginia) and the District of Columbia. This visualization overlays the full watershed onto a Landsat satellite visualization of the Bay area. The eight different distinctly colored regions indicate the Chesapeake's major subwatersheds. These subwatershed regions are: Susquehanna, Potomac, Patuxent, MD West Shore, Rapahhannock, Eastern Shore, James and York. This visualization contains just the last part of the Chesapeake Bay Flyover and Watershed Region (#3472) animation and demonstrates the entire Watershed without the Chesapeake Bay flyover. This animation highlights and labels each subwatershed in turn. Data Notes:The mosaic was created by EarthSat under contract with NASA as part of the GeoCover 2000 product. All images used in GeoCover were acquired by Landsat-7 during the period of 1999-2002. The pixel size of the full resolution image represents 14.25 m on the ground. The Chesapeake Bay mosaic uses portions of eight Landsat-7 scenes. Below you will find a listing of the eight Landsat 7 images that were put together to create the composite image. Landsat scenes are organized by a Path and Row number according to the Worldwide Reference System. (To learn more about Landsat's Worldwide Reference System, please visit: http://landsat.gsfc.nasa.gov/about/wrs.html)Scenes used in the Chesapeake Bay mosaic: Landsat-7 WRS Path 15-Row 32 acquired on Oct. 05, 2001 Landsat-7 WRS Path 14-Row 32 acquired on Sept. 23, 1999 Landsat-7 WRS Path 15-Row 33 acquired on October 05, 2001 Landsat-7 WRS Path 14-Row 33 acquired on July 10, 2001Landsat-7 WRS Path 15-Row 34 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 34 acquired on July 10, 2001 Landsat-7 WRS Path 15-Row 35 acquired on Sept. 30, 1999 Landsat-7 WRS Path 14-Row 35 acquired on Sept. 23, 1999 || ", "hits": 70 }, { "id": 3493, "url": "https://svs.gsfc.nasa.gov/3493/", "result_type": "Visualization", "release_date": "2008-04-21T08:00:00-04:00", "title": "Chesapeake Bay Cities", "description": "This animation takes us on a tour around the Chesapeake Bay region visiting major city centers in the surrounding states: Maryland, Virginia, Delaware and the District of Columbia. The imagery utilized for this animation is a false-color Chesapeake Bay Landsat-7 Mosaic (#3473) composed of eight scenes acquired between 1999-2002, which were put together and color corrected to resemble natural looking colors.The mosaic was created by EarthSat under contract with NASA as part of the GeoCover 2000 product. All images used in GeoCover were acquired by Landsat 7 during the period of 1999-2002. The pixel size of the full resolution image represents 14.25 m on the ground. The Chesapeake Bay mosaic uses portions of eight Landsat-7 scenes. Below you will find a listing of the eight Landsat 7 images that were put together to create the composite image. Landsat scenes are organized by a Path and Row number according to the Worldwide Reference System. (To learn more about Landsat's Worldwide Reference System, please visit: http://landsat.gsfc.nasa.gov/about/wrs.html)Scenes used in the Chesapeake Bay mosaic: Landsat 7 WRS Path 15-Row 32 acquired on Oct. 05, 2001 Landsat 7 WRS Path 14-Row 32 acquired on Sept. 23, 1999 Landsat 7 WRS Path 15-Row 33 acquired on October 05, 2001 Landsat 7 WRS Path 14-Row 33 acquired on July 10, 2001 Landsat 7 WRS Path 15-Row 34 acquired on Sept. 30, 1999 Landsat 7 WRS Path 14-Row 34 acquired on July 10, 2001 Landsat 7 WRS Path 15-Row 35 acquired on Sept. 30, 1999 Landsat 7 WRS Path 14-Row 35 acquired on Sept. 23, 1999 || ", "hits": 23 }, { "id": 2702, "url": "https://svs.gsfc.nasa.gov/2702/", "result_type": "Visualization", "release_date": "2003-02-21T15:00:00-05:00", "title": "Snow Covers Northeastern United States on February 20, 2003", "description": "Snow cover left from a storm front that came through from February 16 to February 17, 2003. || ", "hits": 11 }, { "id": 1324, "url": "https://svs.gsfc.nasa.gov/1324/", "result_type": "Visualization", "release_date": "2000-09-14T12:00:00-04:00", "title": "DC Pan and Zoomout Animation", "description": "This spectacular image of the Mall area was acquired on Saturday, April 1, 2000 by Space Imaging's IKONOS sensor. Here we are moving across the Mall, from west to east and we will pause over the Capitol Building. Let's just sit back for a few seconds and enjoy the view. We will then gradually pull back from this highly localized view from space, to obtain a more regional perspective provided by Landsat 7. This regional view permits us to follow the entire length of the Potomac River, from its headwaters in the Shenandoahs, until it flows into the Chesapeake Bay. We can also see the full extent of the Chesapeake and Delaware Bays as they flow into the Atlantic. We will continue to pull back farther to obtain more continental and global views of the Earth as provided by a new instrument known as MODIS, or the Moderate Resolution Imaging Spectroradiometer, the primary instrument on the Terra spacecraft. Finally, we rotate the Earth so as to see a representation of the Earth's stable light sources, as derived from DMSP satellites. (Note: This animation is a precursor to the Great Zooms. It is based on the same concept and data sources, but is somewhat less polished, particularly in the area of color matching.) || ", "hits": 20 }, { "id": 853, "url": "https://svs.gsfc.nasa.gov/853/", "result_type": "Visualization", "release_date": "1999-04-09T12:00:00-04:00", "title": "Philadelphia Flyby", "description": "These scenes show the city of Philadelphia as seen by the Landsat Thematic Mapper (TM) instrument. The river running through the city is the Delaware which defines the boundary between New Jersey and Pennsylvania. In the larger city area image, north is approximately up. The river runs south. Just near the top of the image, upstream of the city and where the Delaware River turns west is the New Jersey city of Trenton. The shortwave infrared (TM band 5), infrared (TM band 4), and visible green (TM band 2) channels are displayed in the images as red, green, and blue respectively. In this combination, barren and or recently cultivated land appears red to pink, vegetation appears green, water is dark blue, and artificial structures of concrete and asphalt appear dark gray or black. || ", "hits": 33 } ] }