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||", "release_date": "2026-02-02T14:00:00-05:00", "update_date": "2026-04-02T13:51:08.488829-04:00", "main_image": { "id": 1201752, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014900/a014963/14963_Hartbeespoort_Dam_-_Vertical.00001_print.jpg", "filename": "14963_Hartbeespoort_Dam_-_Vertical.00001_print.jpg", "media_type": "Image", "alt_text": "Timelapse video of an algae bloom in Hartbeespoort, South Africa from June 2022 to July 2023. 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These images are from the Harmonized Landsat Sentinel-2 dataset, which leverages imagery from both the NASA/USGS Landsat satellites and ESA Sentinel-2 satellites.Producer: Ross Walter", "width": 1024, "height": 1820, "pixels": 1863680 } }, { "id": 14867, "url": "https://svs.gsfc.nasa.gov/14867/", "page_type": "Produced Video", "title": "GEMx Animations", "description": "Conceptual animation illustrating the ER-2 aircraft collecting spectroscopic mineral data over the American West. || GEMxThumbnail.png (1948x1052) [1.5 MB] || GEMxThumbnail_print.jpg (1024x553) [118.0 KB] || GEMxThumbnail_searchweb.png (320x180) [55.7 KB] || GEMxThumbnail_thm.png (80x40) [8.2 KB] || GEMx_Interface_1080p.mov (1920x1080) [37.6 MB] || GEMx_Interface_4k.mp4 (3840x2160) [36.0 MB] || GEMx_Interface_ProRes.mov (3840x2160) [4.1 GB] || ", "release_date": "2025-07-15T14:00:00-04:00", "update_date": "2025-10-06T12:52:46-04:00", "main_image": { "id": 1156878, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014867/GEMxThumbnail.png", "filename": "GEMxThumbnail.png", "media_type": "Image", "alt_text": "Conceptual animation illustrating the ER-2 aircraft collecting spectroscopic mineral data over the American West.\r", "width": 1948, "height": 1052, "pixels": 2049296 } }, { "id": 14851, "url": "https://svs.gsfc.nasa.gov/14851/", "page_type": "Produced Video", "title": "GEMx Illustrations", "description": "Conceptual illustration depicting the ER-2 aircraft and the AVIRIS instrument searching for critical minerals as part of the GEMx campaign. || GEMx_Illustration_withTEXT_vFinal.png (3840x2160) [17.0 MB] || GEMx_Illustration_withTEXT_vFinal_print.jpg (1024x576) [287.6 KB] || GEMx_Illustration_withTEXT_vFinal_searchweb.png (320x180) [123.2 KB] || GEMx_Illustration_withTEXT_vFinal_thm.png (80x40) [8.2 KB] || ", "release_date": "2025-06-04T14:00:00-04:00", "update_date": "2025-06-04T14:54:52-04:00", "main_image": { "id": 1155999, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014800/a014851/GEMx_Illustration_withTEXT_vFinal_print.jpg", "filename": "GEMx_Illustration_withTEXT_vFinal_print.jpg", "media_type": "Image", "alt_text": "Conceptual illustration depicting the ER-2 aircraft and the AVIRIS instrument searching for critical minerals as part of the GEMx campaign. ", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 14728, "url": "https://svs.gsfc.nasa.gov/14728/", "page_type": "B-Roll", "title": "Geological Earth Mapping Experiment (GEMx) B-roll", "description": "The Geological Earth Mapping Experiment (GEMx) is a joint campaign between NASA and the U.S. Geological Survey (USGS) to map portions of the southwest United States for critical minerals using advanced airborne imaging. Spectral data from hundreds of wavelengths of reflected light can provide new information about Earth’s surface and atmosphere to help scientists understand Earth’s geology and biology, as well as the effects of climate change. The research project will use NASA’s Airborne Visible/Infrared Imaging Spectrometer (AVIRIS), the Modified Daedalus Wildfire scanning spectrometer (MASTER), and other airborne spectrocopic instruments flown on NASA’s ER-2 and Gulfstream V aircraft to collect the measurements over the country’s arid and semi-arid regions, including parts of California, Nevada, Arizona, and New Mexico.GEMx VISIONS PortalGEMx Campaign Information || ", "release_date": "2024-12-06T12:00:00-05:00", "update_date": "2025-05-06T13:47:08-04:00", "main_image": { "id": 1139873, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a014700/a014728/Studying_Thunderstorms_ER-2_B-roll_4.00200_print.jpg", "filename": "Studying_Thunderstorms_ER-2_B-roll_4.00200_print.jpg", "media_type": "Image", "alt_text": "These selected clips showcase NASA's ER-2 aircraft take off and landing. Please note that these clips are not from a GEMx campaign flight, but rather serve as an example of how the ER-2 aircraft is utilized for such campaigns.Video footage of the ER-2 aircraft courtesy of NASA's Armstrong Flight Research Center.", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }