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"release_date": "2024-02-23T17:30:00-05:00",
"title": "Moon Essentials: Seasons",
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"title": "Moon Phase and Libration, 2024",
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"release_date": "2023-07-22T00:00:00-04:00",
"title": "Lunar South Pole Terrain in Coded Color",
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"release_date": "2023-02-15T15:00:00-05:00",
"title": "Mons Mouton, a Newly Named Lunar Mountain",
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"title": "Flying over the Taurus-Littrow Valley",
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"release_date": "2022-11-09T13:00:00-05:00",
"title": "Moon Phase and Libration, 2023",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
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"title": "Moon Phase and Libration, 2023 South Up",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
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"release_date": "2022-10-05T16:20:00-04:00",
"title": "From the Moon to the Earth",
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"release_date": "2022-10-05T16:15:00-04:00",
"title": "The Sun's Path at Different Lunar Latitudes",
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"release_date": "2022-10-05T16:10:00-04:00",
"title": "Illumination at Schrödinger Basin",
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"title": "Illumination at the Moon's South Pole to 80°S, 2025 to 2028",
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"title": "Illumination at the Moon's South Pole, 2023 to 2030",
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"release_date": "2022-09-28T14:00:00-04:00",
"title": "November 8, 2022 Total Lunar Eclipse: Shadow View",
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"release_date": "2022-09-28T14:00:00-04:00",
"title": "November 8, 2022 Total Lunar Eclipse: Telescopic View",
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"title": "November 8, 2022 Total Lunar Eclipse: Visibility Map",
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"release_date": "2022-09-19T09:30:00-04:00",
"title": "Lunar Polar Wander",
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"release_date": "2022-08-19T13:00:00-04:00",
"title": "Artemis III Landing Region Candidates",
"description": "This narrated movie introduces Artemis III, reveals the mission's 13 candidate landing regions near the lunar South Pole, and briefly discusses some of the criteria that narrowed the selection to these regions.Music provided by Universal Production Music: Best Days to Come – Matteo Pagamici and Max Molling.This video can also be viewed on the NASA Goddard YouTube channel. || ArtemisIII_LandingRegions_print.jpg (1024x576) [130.2 KB] || ArtemisIII_LandingRegions_YouTubeHD.webm (1920x1080) [15.6 MB] || ArtemisIII_LandingRegions_YouTubeHD.mp4 (1920x1080) [230.8 MB] || ArtemisIII_LandingRegions_Captions.en_US.srt [3.0 KB] || ArtemisIII_LandingRegions_Captions.en_US.vtt [2.8 KB] || ArtemisIII_LandingRegions_MASTER.mov (1920x1080) [1.9 GB] || ",
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"result_type": "Visualization",
"release_date": "2022-05-05T17:00:00-04:00",
"title": "Moon Mosaic",
"description": "A photomosaic of the full Moon comprising 1,231 images taken by LRO's Narrow Angle Camera. || moon_mosaic_print.jpg (1024x1024) [246.6 KB] || moon_mosaic_searchweb.png (320x180) [60.0 KB] || moon_mosaic_thm.png (80x40) [13.7 KB] || moon_mosaic_big.tif (12800x12800) [72.9 MB] || moon_mosaic.tif (3200x3200) [6.2 MB] || ",
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"result_type": "Visualization",
"release_date": "2022-04-18T13:30:00-04:00",
"title": "Apollo 16 Lands in the Lunar Highlands",
"description": "The camera flies from the east to the Apollo 16 landing site, then flies north to North Ray crater. Includes an introductory slate, astronaut audio, and music.Music provided by Universal Production Music: The Orion Arm – Christian Telford, David Travis Edwards, Matthew St Laurent, and Robert Anthony Navarro.Watch this video on the NASA Goddard YouTube channel. || apollo16_sound_print.jpg (1024x576) [126.3 KB] || apollo16_youtubehd.webm (1920x1080) [9.6 MB] || apollo16_youtubehd.mp4 (1920x1080) [117.2 MB] || apollo16_captions.en_US.srt [1.5 KB] || apollo16_captions.en_US.vtt [1.4 KB] || apollo16_master.mov (1920x1080) [1.2 GB] || ",
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"url": "https://svs.gsfc.nasa.gov/4980/",
"result_type": "Visualization",
"release_date": "2022-03-24T01:02:00-04:00",
"title": "May 15-16, 2022 Total Lunar Eclipse: Shadow View",
"description": "Eastern Daylight Time (EDT). The Moon moves right to left, passing through the penumbra and umbra, leaving in its wake an eclipse diagram with the times at various stages of the eclipse. || shadow_diagram_edt_202205_print.jpg (1024x576) [85.9 KB] || moon.2355_searchweb.png (320x180) [48.4 KB] || moon.2355_thm.png (80x40) [5.0 KB] || umbracam_edt_202205_1080p30.mp4 (1920x1080) [12.2 MB] || umbracam_edt_202205_720p30.mp4 (1280x720) [6.7 MB] || umbracam_edt_202205_720p30.webm (1280x720) [9.4 MB] || umbracam_edt_202205_2160p30.mp4 (3840x2160) [35.5 MB] || umbracam_edt_202205_360p30.mp4 (640x360) [2.4 MB] || shadow_diagram_edt_202205.tif (3840x2160) [6.7 MB] || edt (3840x2160) [0 Item(s)] || umbracam_edt_202205_1080p30.mp4.hwshow [193 bytes] || ",
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"result_type": "Visualization",
"release_date": "2022-03-24T01:01:00-04:00",
"title": "May 15-16, 2022 Total Lunar Eclipse: Visibility Map",
"description": "An animated map showing where the May 15-16, 2022 lunar eclipse is visible. Contours mark the edge of the visibility region at eclipse contact times. The map is centered on 63°52'W, the sublunar longitude at mid-eclipse. || map.0718_print.jpg (1024x576) [99.7 KB] || map.0718_searchweb.png (320x180) [48.5 KB] || map.0718_thm.png (80x40) [5.3 KB] || vismap_202205_1080p30.mp4 (1920x1080) [18.7 MB] || vismap_202205_720p30.mp4 (1280x720) [9.9 MB] || vismap_202205_720p30.webm (1280x720) [9.2 MB] || vismap_202205_2160p30.mp4 (3840x2160) [60.8 MB] || vismap_202205_360p30.mp4 (640x360) [3.4 MB] || map (3840x2160) [0 Item(s)] || vismap_202205_1080p30.mp4.hwshow [187 bytes] || ",
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"result_type": "Visualization",
"release_date": "2022-03-24T01:00:00-04:00",
"title": "May 15-16, 2022 Total Lunar Eclipse: Telescopic View",
"description": "On May 16, 2022 (the night of May 15), the Moon enters the Earth's shadow, creating a total lunar eclipse. This visualization simulates the view through a telescope during the eclipse.",
"hits": 108
},
{
"id": 4969,
"url": "https://svs.gsfc.nasa.gov/4969/",
"result_type": "Visualization",
"release_date": "2022-02-28T10:00:00-05:00",
"title": "Pinpointing the Moon's South Pole",
"description": "Visualization of the precise location of the lunar South Pole in the Moon Mean Earth coordinate system. Includes narration and music. Presented in both horizontal (landscape) and vertical (portrait) aspect ratios.Music provided by Universal Production Music: Unmatched Skills – John K Sands, Marc Ferrari, Michael A TremanteThis video can also be viewed on the NASA Goddard YouTube channel. || southpole.0120_narrated_print.jpg (1024x576) [19.1 KB] || PinpointingSouthPole-YouTubeHD.mp4 (1920x1080) [50.5 MB] || PinpointingSouthPole-VERTICAL.mp4 (1080x1920) [54.6 MB] || PinpointingSouthPole-VERTICAL.webm (1080x1920) [7.8 MB] || PinpointingSouthPole-MASTER.mov (1920x1080) [382.4 MB] || PinpointingSouthPole-Captions.en_US.srt [1.5 KB] || PinpointingSouthPole-Captions.en_US.vtt [1.5 KB] || PinpointingSouthPole-YouTubeHD.mp4.hwshow || ",
"hits": 294
},
{
"id": 4955,
"url": "https://svs.gsfc.nasa.gov/4955/",
"result_type": "Visualization",
"release_date": "2021-11-18T10:00:00-05:00",
"title": "Moon Phase and Libration, 2022",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
"hits": 908
},
{
"id": 4956,
"url": "https://svs.gsfc.nasa.gov/4956/",
"result_type": "Visualization",
"release_date": "2021-11-18T09:59:00-05:00",
"title": "Moon Phase and Libration, 2022 South Up",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
"hits": 374
},
{
"id": 4944,
"url": "https://svs.gsfc.nasa.gov/4944/",
"result_type": "Visualization",
"release_date": "2021-10-16T20:00:00-04:00",
"title": "Earth and Sun from the Moon's South Pole",
"description": "An animated view of the Sun and the Earth as seen from the Moon's South Pole, narrated by the visualizer.Music Provided by Universal Production Music: “Enduring Faith” – Frederik WiedmannThis video can also be viewed on the NASA Goddard YouTube channel. || shackleton_earth.0001_print.jpg (1024x576) [41.1 KB] || shackleton_earth_YouTube.webm (1920x1080) [15.7 MB] || shackleton_earth_YouTube.mp4 (1920x1080) [177.5 MB] || shackleton_earth_CAPTIONS.en_US.srt [3.4 KB] || shackleton_earth_CAPTIONS.en_US.vtt [3.2 KB] || shackleton_earth_YouTube.mp4.hwshow || ",
"hits": 703
},
{
"id": 4918,
"url": "https://svs.gsfc.nasa.gov/4918/",
"result_type": "Visualization",
"release_date": "2021-07-30T09:00:00-04:00",
"title": "Apollo 15 Stand-Up EVA",
"description": "FULL VERSION with Music: Excerpts of Apollo 15 Commander Dave Scott's stand-up EVA audio are combined with visuals of the Hadley-Apennine region created from Lunar Reconnaissance Orbiter data.Music provided by Universal Production Music: “Spread Our Wings” – Ben BeinyWatch this video on the NASA Goddard YouTube channel. || 4918_Apollo15_StandUpEVA_Thumbnail_print.jpg (1024x576) [79.8 KB] || 4918_Apollo15_StandUpEVA_Thumbnail.tif (1920x1080) [7.9 MB] || 4918_Apollo15_StandUpEVA_YOUTUBEHD.webm (1920x1080) [16.0 MB] || 4918_Apollo15_StandUpEVA_FacebookHD.mp4 (1920x1080) [174.2 MB] || 4918_Apollo15_StandUpEVA_YOUTUBEHD.mp4 (1920x1080) [219.5 MB] || 4918_Apollo15_StandUpEVA_CAPTIONS.en_US.srt [1.9 KB] || 4918_Apollo15_StandUpEVA_CAPTIONS.en_US.vtt [1.9 KB] || 4918_Apollo15_StandUpEVA_MASTER.mov (1920x1080) [1.9 GB] || 4918_Apollo15_StandUpEVA_FacebookHD.mp4.hwshow [201 bytes] || ",
"hits": 626
},
{
"id": 4902,
"url": "https://svs.gsfc.nasa.gov/4902/",
"result_type": "Visualization",
"release_date": "2021-04-26T09:00:00-04:00",
"title": "May 26, 2021 Total Lunar Eclipse: Telescopic View",
"description": "On May 26, 2021, the Moon enters the Earth's shadow, creating a total lunar eclipse. This visualization simulates the view through a telescope during the eclipse.",
"hits": 136
},
{
"id": 4883,
"url": "https://svs.gsfc.nasa.gov/4883/",
"result_type": "Visualization",
"release_date": "2021-02-08T09:00:00-05:00",
"title": "Apollo 14 Hike To Cone Crater",
"description": "Full Video with Narration: This video describes the hike toward Cone crater by Apollo 14 astronauts Al Shepard and Ed Mitchell, using a visualization created from Lunar Reconnaissance Orbiter data.Music provided by Universal Production Music: “Taking Flight” – Ben Beiny.Watch this video on the NASA Goddard YouTube channel. || 4883_HikeThumbnail1.jpg (1920x1080) [474.2 KB] || 4883_HikeThumbnail2.jpg (1920x1080) [565.1 KB] || 4883_HikeThumbnail1_print.jpg (1024x576) [161.9 KB] || 4883_Apollo14HikeCone_YouTubeHD.webm (1920x1080) [18.4 MB] || 4883_Apollo14HikeCone_FacebookHD.mp4 (1920x1080) [152.1 MB] || 4883_Apollo14HikeCone_YouTubeHD.mp4 (1920x1080) [202.4 MB] || 4883_Apollo14HikeCone_CAPTIONS.en_US.srt [2.4 KB] || 4883_Apollo14HikeCone_CAPTIONS.en_US.vtt [2.3 KB] || 4883_Apollo14HikeCone_MASTER.mov (1920x1080) [3.1 GB] || ",
"hits": 494
},
{
"id": 4874,
"url": "https://svs.gsfc.nasa.gov/4874/",
"result_type": "Visualization",
"release_date": "2020-11-23T00:00:00-05:00",
"title": "Moon Phase and Libration, 2021",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
"hits": 1123
},
{
"id": 4875,
"url": "https://svs.gsfc.nasa.gov/4875/",
"result_type": "Visualization",
"release_date": "2020-11-23T00:00:00-05:00",
"title": "Moon Phase and Libration, 2021 South Up",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
"hits": 153
},
{
"id": 4868,
"url": "https://svs.gsfc.nasa.gov/4868/",
"result_type": "Visualization",
"release_date": "2020-10-26T09:00:00-04:00",
"title": "The Moon's Clavius Crater",
"description": "A slow flyover of Clavius crater, looking south. || clavius.1800_print.jpg (1024x576) [146.9 KB] || clavius.1800_searchweb.png (320x180) [90.6 KB] || clavius.1800_thm.png (80x40) [6.7 KB] || clavius_1080p60.mp4 (1920x1080) [24.0 MB] || clavius_720p60.mp4 (1280x720) [11.3 MB] || clavius_1080p30.mp4 (1920x1080) [21.3 MB] || clavius_720p30.mp4 (1280x720) [19.7 MB] || 1920x1080_16x9_60p (1920x1080) [0 Item(s)] || clavius_720p30.webm (1280x720) [7.3 MB] || clavius_360p60.mp4 (640x360) [4.5 MB] || clavius_360p30.mp4 (640x360) [7.6 MB] || clavius_1080p60.mov (1920x1080) [1.2 GB] || clavius_1080p30.mp4.hwshow [181 bytes] || ",
"hits": 812
},
{
"id": 4864,
"url": "https://svs.gsfc.nasa.gov/4864/",
"result_type": "Visualization",
"release_date": "2020-10-09T06:00:00-04:00",
"title": "Halloween Blue Moon",
"description": "A still image of the two Full Moons in October of 2020, with labels. || two_moons_2k.jpg (1920x1080) [273.9 KB] || two_moons_2k_print.jpg (1024x576) [141.0 KB] || two_moons.jpg (3840x2160) [732.6 KB] || two_moons_2k_searchweb.png (320x180) [84.6 KB] || two_moons_2k_thm.png (80x40) [19.6 KB] || ",
"hits": 369
},
{
"id": 4768,
"url": "https://svs.gsfc.nasa.gov/4768/",
"result_type": "Visualization",
"release_date": "2019-12-12T12:00:00-05:00",
"title": "Moon Phase and Libration, 2020",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
"hits": 819
},
{
"id": 4769,
"url": "https://svs.gsfc.nasa.gov/4769/",
"result_type": "Visualization",
"release_date": "2019-12-12T12:00:00-05:00",
"title": "Moon Phase and Libration, 2020 South Up",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
"hits": 149
},
{
"id": 4767,
"url": "https://svs.gsfc.nasa.gov/4767/",
"result_type": "Visualization",
"release_date": "2019-11-19T10:00:00-05:00",
"title": "The Apollo 12 Landing Site",
"description": "The Apollo 12 landing site visualized in three dimensions using photography and a stereo digital elevation model from the Lunar Reconnaissance Orbiter Camera. The locations of the flag shadow, experiment package, astronaut paths, and the Surveyor 3 spacecraft are marked. Music provided by Universal Production Music: \"The Return\" - Axel Tenner, Michael Schluecker, Raphael Schalz. || 4767_Apollo12LandingSite_print.jpg (1024x576) [232.4 KB] || 4767_Apollo12LandingSite_searchweb.png (320x180) [101.8 KB] || 4767_Apollo12LandingSite_thm.png (80x40) [7.1 KB] || 4767_Apollo12LandingSiteYoutubeHD.mp4 (1920x1080) [88.3 MB] || 4767_Apollo12LandingSiteFacebook.mp4 (1920x1080) [67.8 MB] || 4767_Apollo12LandingSiteTwitter.mp4 (1280x720) [13.0 MB] || 4767_Apollo12LandingSiteYoutubeHD.webm (1920x1080) [6.4 MB] || 4767_Apollo12LandingSiteMASTERnew.mov (1920x1080) [760.8 MB] || 4767_Apollo12LandingSite_Captions.en_US.srt [44 bytes] || 4767_Apollo12LandingSite_Captions.en_US.vtt [57 bytes] || 4767_Apollo12LandingSiteFacebook.mp4.hwshow [198 bytes] || ",
"hits": 3000
},
{
"id": 4731,
"url": "https://svs.gsfc.nasa.gov/4731/",
"result_type": "Visualization",
"release_date": "2019-03-29T00:00:00-04:00",
"title": "Apollo Landing Sites with Moon Phases",
"description": "The six Apollo landing sites are revealed chronologically as the phase and libration of the Moon is shown throughout the Apollo era. Annotations describe the landing sites and the durations on the lunar surface. || apollo_phases.2609_print.jpg (1024x576) [166.8 KB] || apollo_phases.2609_thm.png (80x40) [7.1 KB] || apollo_phases.2609_searchweb.png (320x180) [80.5 KB] || apollo_sites_1080p30.mp4 (1920x1080) [65.0 MB] || apollo_sites_720p30.mp4 (1280x720) [33.3 MB] || apollo_sites_720p30.webm (1280x720) [10.1 MB] || annotated (1920x1080) [0 Item(s)] || apollo_sites_360p30.mp4 (640x360) [10.6 MB] || annotated (3840x2160) [0 Item(s)] || annotated (5760x3240) [0 Item(s)] || apollo_sites_2160p30.mp4 (3840x2160) [228.3 MB] || apollo_sites_1080p30.mp4.hwshow [186 bytes] || ",
"hits": 5828
},
{
"id": 4593,
"url": "https://svs.gsfc.nasa.gov/4593/",
"result_type": "Visualization",
"release_date": "2018-12-21T09:00:00-05:00",
"title": "Earthrise in 4K",
"description": "On December 24, 1968, Apollo 8 astronauts Frank Borman, Jim Lovell, and Bill Anders became the first humans to witness the Earth rising above the moon's barren surface. Now we can relive the astronauts' experience, thanks to data from NASA's Lunar Reconnaissance Orbiter. Complete transcript available.Watch this video on the NASA Goddard YouTube channel. || YOUTUBE_1080_G2018_Earthrise_Master_VX-300368_youtube_1080.mp4 (1920x1080) [882.1 MB] || earthrise_print.jpg (3840x2160) [515.7 KB] || earthrise_print_searchweb.png (180x320) [52.8 KB] || earthrise_print_thm.png (80x40) [4.6 KB] || TWITTER_720_G2018_Earthrise_Master_VX-300368_twitter_720.mp4 (1280x720) [114.9 MB] || FACEBOOK_720_G2018_Earthrise_Master_VX-300368_facebook_720.mp4 (1280x720) [641.1 MB] || YOUTUBE_720_G2018_Earthrise_Master_VX-300368_youtube_720.mp4 (1280x720) [832.1 MB] || G2018_Earthrise_Master_Output.en_US.srt [6.8 KB] || G2018_Earthrise_Master_Output.en_US.vtt [6.7 KB] || G2018_Earthrise_Master.webm (3840x2160) [107.0 MB] || G2018_Earthrise_Master.mp4 (3840x2160) [500.2 MB] || G2018_Earthrise_Master.mov (3840x2160) [19.6 GB] || G2018_Earthrise_Master.mp4.hwshow [82 bytes] || ",
"hits": 3094
},
{
"id": 4442,
"url": "https://svs.gsfc.nasa.gov/4442/",
"result_type": "Visualization",
"release_date": "2018-12-15T00:01:00-05:00",
"title": "Moon Phase and Libration, 2019",
"description": " || Click on the image to download a high-resolution version with labels for craters near the terminator.The data in the table for the entire year can be downloaded as a JSON file or as a text file. || moon.0001.jpg (730x730) [41.9 KB] || comp.0001.tif (3840x2160) [5.6 MB] || ",
"hits": 281
},
{
"id": 4459,
"url": "https://svs.gsfc.nasa.gov/4459/",
"result_type": "Visualization",
"release_date": "2018-12-15T00:01:00-05:00",
"title": "Moon Phase and Libration, 2019 South Up",
"description": "Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || || ",
"hits": 119
},
{
"id": 4717,
"url": "https://svs.gsfc.nasa.gov/4717/",
"result_type": "Visualization",
"release_date": "2018-03-23T00:00:00-04:00",
"title": "The Taurus-Littrow Valley through LRO's Eyes",
"description": "This visualization of the Taurus-Littrow valley, site of the Apollo 17 Moon landing, uses multiple Lunar Reconnaissance Orbiter datasets to zoom into the valley and illustrate the paths taken by the astronauts during their three days of exploration at the site. The data includes wide-angle (WAC) and narrow-angle (NAC) camera images, LOLA laser altimetry, and a high-resolution elevation map created from NAC stereo pairs. The imagery was chosen to approximately match the lighting conditions at the time of the landing. Color-coded trails with numbered stops (called stations in astronaut lingo) show where Eugene Cernan and Harrison Schmitt drove their lunar rover — orange on day 1, blue on day 2, and green on day 3. || ",
"hits": 443
},
{
"id": 4614,
"url": "https://svs.gsfc.nasa.gov/4614/",
"result_type": "Visualization",
"release_date": "2018-01-23T12:00:00-05:00",
"title": "January 31, 2018 Total Lunar Eclipse: Shadow View",
"description": "The Moon moves right to left, passing through the penumbra and umbra, leaving in its wake an eclipse diagram with the times at various stages of the eclipse. TImes are for the Pacific Standard TIme zone. || umbra_chart_4k_pst_still_print.jpg (1024x576) [74.8 KB] || umbra_chart_4k_pst_still_searchweb.png (320x180) [45.2 KB] || umbra_chart_4k_pst_still_thm.png (80x40) [4.8 KB] || eclipse_1080p30.mp4 (1920x1080) [6.1 MB] || eclipse_720p30.mp4 (1280x720) [3.4 MB] || eclipse_720p30.webm (1280x720) [4.5 MB] || umbra_chart_4k_pst_still.tif (3840x2160) [3.8 MB] || pst (3840x2160) [0 Item(s)] || eclipse_2160p30.mp4 (3840x2160) [17.4 MB] || eclipse_360p30.mp4 (640x360) [1.1 MB] || eclipse_1080p30.mp4.hwshow [181 bytes] || ",
"hits": 99
},
{
"id": 4604,
"url": "https://svs.gsfc.nasa.gov/4604/",
"result_type": "Visualization",
"release_date": "2017-12-18T01:00:00-05:00",
"title": "Moon Phase and Libration, 2018",
"description": " || Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || ",
"hits": 360
},
{
"id": 4605,
"url": "https://svs.gsfc.nasa.gov/4605/",
"result_type": "Visualization",
"release_date": "2017-12-18T01:00:00-05:00",
"title": "Moon Phase and Libration, 2018 South Up",
"description": " || Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || ",
"hits": 93
},
{
"id": 4709,
"url": "https://svs.gsfc.nasa.gov/4709/",
"result_type": "Visualization",
"release_date": "2017-10-06T00:00:00-04:00",
"title": "The Moon's Rotation",
"description": "The Moon rotates as it orbits the Earth. The radial yellow line marks the 0° longitude meridian on the Moon. || orbit.0175_print.jpg (1024x576) [18.1 KB] || orbit.0175_searchweb.png (320x180) [9.5 KB] || orbit.0175_thm.png (80x40) [1.5 KB] || orbit_1080p30.mp4 (1920x1080) [4.4 MB] || orbit_720p30.mp4 (1280x720) [2.4 MB] || orbit_720p30.webm (1280x720) [5.7 MB] || orbit_2160p30.mp4 (3840x2160) [12.0 MB] || orbit_360p30.mp4 (640x360) [920.2 KB] || 3840x2160_16x9_30p (3840x2160) [0 Item(s)] || orbit_1080p30.mp4.hwshow [179 bytes] || ",
"hits": 8133
},
{
"id": 4468,
"url": "https://svs.gsfc.nasa.gov/4468/",
"result_type": "Visualization",
"release_date": "2017-03-27T09:00:00-04:00",
"title": "Lunar Swirls: Reiner Gamma",
"description": "Beginning with a full-globe view of the lunar near side, the camera flies to a close-up, increasingly oblique view of the lunar swirl called Reiner Gamma. Narrated by LRO Deputy Project Scientist Noah Petro. Music provided by Killer Tracks: Facing the Truth — TV Mix by Eric Chevalier. || MoonFeaturesReinerGammaStill_Image_print.jpg (1024x576) [104.4 KB] || MoonFeaturesReinerGamma-Facebook.mp4 (1280x720) [48.9 MB] || MoonFeaturesReinerGamma-Twitter.mp4 (1280x720) [9.0 MB] || MoonFeaturesReinerGamma-Facebook.webm (1280x720) [3.6 MB] || MoonFeaturesReinerGamma-Captions.en_US.srt [741 bytes] || MoonFeaturesReinerGamma-Captions.en_US.vtt [753 bytes] || MoonFeaturesReinerGammaStill_Image.tif (3840x2160) [31.7 MB] || MoonFeaturesReinerGamma-Youtube4k.mp4 (3840x2160) [145.0 MB] || MoonFeaturesReinerGamma-MASTER_4KProres.mov (3840x2160) [2.1 GB] || MoonFeaturesReinerGamma-Twitter.mp4.hwshow [197 bytes] || ",
"hits": 259
},
{
"id": 4537,
"url": "https://svs.gsfc.nasa.gov/4537/",
"result_type": "Visualization",
"release_date": "2016-12-22T15:00:00-05:00",
"title": "Moon Phase and Libration, 2017",
"description": " || Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || ",
"hits": 258
},
{
"id": 4538,
"url": "https://svs.gsfc.nasa.gov/4538/",
"result_type": "Visualization",
"release_date": "2016-12-22T15:00:00-05:00",
"title": "Moon Phase and Libration, 2017 South Up",
"description": " || Dial-A-Moon || moon.0001.jpg (730x730) || comp.0001.tif (5760x3240) || ",
"hits": 95
},
{
"id": 4499,
"url": "https://svs.gsfc.nasa.gov/4499/",
"result_type": "Visualization",
"release_date": "2016-10-21T00:00:00-04:00",
"title": "Orientale Impact Basin for the Cover of Science",
"description": "This print-resolution still image was created for the cover of the October 28, 2016 issue of Science. It features a free-air gravity map of the Orientale impact basin based on data returned by the Gravity Recovery and Interior Laboratory (GRAIL) mission.Orientale is about 930 kilometers wide and lies on the western limb of the Moon as viewed from Earth. It's the Moon's youngest and best-preserved large impact basin, formed about 3.8 billion years ago at the end of the conjectured Late Heavy Bombardment. A paper in Science by Maria Zuber et al. uses the GRAIL data to shed new light on the basin's geology, while a second paper by Brandon Johnson et al. describes a computer simulation of the basin's formation constrained by that data.The shaded relief in this image is not a photograph. It's a very accurate computer rendering based on a digital model of the terrain. The model is derived from a digital elevation map called SLDEM2015. This map combines data from the laser altimeter (LOLA) on NASA's Lunar Reconnaissance Orbiter (LRO) with stereo imagery from the Terrain Camera on the Japan Space Agency's SELENE spacecraft.The angle of the virtual Sun was chosen to throw Orientale's terrain into high relief — it's just after sunrise at Orientale, about a day past full Moon. The camera is on the western terminator (day/night line) looking north.The colorful part is the gravity anomaly based on measurements by GRAIL. Red indicates areas of higher gravity, or excess mass, and blue indicates lower gravity or areas of mass deficits. The GRAIL data reveals the structure of the basin beneath the surface. The red in the center of the basin, for example, shows that the crust is particularly thin there, and that denser mantle material is closer to the surface. || ",
"hits": 1195
},
{
"id": 4505,
"url": "https://svs.gsfc.nasa.gov/4505/",
"result_type": "Visualization",
"release_date": "2016-10-13T00:01:00-04:00",
"title": "Gardening Rates on the Moon",
"description": "After simulating the distant view of a new impact, the camera zooms up to the surface to show actual before/after images of a new 12-meter crater taken by the Lunar Reconnaissance Orbiter narrow-angle camera. (The impact that formed this crater wasn't seen from Earth, but a different one was.) || new_crater.0900_print.jpg (1024x576) [183.2 KB] || new_crater.0900_searchweb.png (320x180) [66.2 KB] || new_crater.0900_thm.png (80x40) [3.5 KB] || new_crater_1080p30.mp4 (1920x1080) [17.9 MB] || new_crater_720p30.mp4 (1280x720) [9.1 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || new_crater_720p30.webm (1280x720) [2.9 MB] || new_crater_360p30.mp4 (640x360) [3.0 MB] || new_crater_4505.key [19.1 MB] || new_crater_4505.pptx [18.8 MB] || gardening-moon-mp4.hwshow [204 bytes] || ",
"hits": 282
},
{
"id": 4444,
"url": "https://svs.gsfc.nasa.gov/4444/",
"result_type": "Visualization",
"release_date": "2016-08-01T09:00:00-04:00",
"title": "Rima Prinz and Vera",
"description": "The camera zooms from an overhead, global view centered on the northern rim of Prinz crater, at 26.3°N 43.7°W, down to an oblique, close-up view of Vera crater and the associated rille, Rima Prinz. Narrated by NASA Goddard planetary geologist Debra Hurwitz Needham. || RimaPrinzVera_MASTER.00540_print.jpg (1024x576) [68.7 KB] || RimaPrinzVera_MASTER_appletv.m4v (1280x720) [17.0 MB] || RimaPrinzVera_MASTER_appletv_subtitles.m4v (1280x720) [17.0 MB] || RimaPrinzVera_MASTER.webm (1280x720) [3.5 MB] || RimaPrinzVera_MASTER_large.mp4 (3840x2160) [37.0 MB] || RimaPrinzVera_MASTER_ipod_sm.mp4 (320x240) [6.2 MB] || RimaPrinzVera_MASTER_youtube_hq.en_US.srt [747 bytes] || RimaPrinzVera_MASTER_youtube_hq.en_US.vtt [760 bytes] || RimaPrinzVera_MASTER.mpeg (1280x720) [122.3 MB] || RimaPrinzVera_MASTER_prores.mov (1280x720) [510.9 MB] || RimaPrinzVera_MASTER_youtube_hq.mov (3840x2160) [305.5 MB] || ",
"hits": 76
},
{
"id": 4404,
"url": "https://svs.gsfc.nasa.gov/4404/",
"result_type": "Visualization",
"release_date": "2015-12-10T12:00:00-05:00",
"title": "Moon Phase and Libration, 2016",
"description": " || Click on the image to download a high-resolution version with labels for craters near the terminator.The data in the table for the entire year can be downloaded as a JSON file or as a text file. || moon.0001.jpg (730x730) [74.4 KB] || comp.0001.tif (1920x1080) [2.5 MB] || ",
"hits": 605
},
{
"id": 4405,
"url": "https://svs.gsfc.nasa.gov/4405/",
"result_type": "Visualization",
"release_date": "2015-12-10T12:00:00-05:00",
"title": "Moon Phase and Libration, 2016 South Up",
"description": " || Click on the image to download a high-resolution version with labels for craters near the terminator.The data in the table for the entire year can be downloaded as a JSON file or as a text file. || moon.0001.jpg (730x730) [74.4 KB] || comp.0001.tif (3840x2160) [7.1 MB] || ",
"hits": 73
},
{
"id": 4302,
"url": "https://svs.gsfc.nasa.gov/4302/",
"result_type": "Visualization",
"release_date": "2015-12-08T20:00:00-05:00",
"title": "Apollo 17 Landing Site",
"description": "Apollo 17, crewed by Eugene Cernan, Ronald Evans, and Harrison Schmitt, was the final Apollo mission to the Moon. The Lunar Module Challenger landed in the Taurus-Littrow valley on December 11, 1972 and remained there for 75 hours. The landing site is a relatively flat spot among low mountains at the southeastern edge of Mare Serenitatis.The images here are designed for display on NASA's hyperwall. They help tell the story of Apollo 17's exploration of the Taurus-Littrow site using data and imaging from Lunar Reconnaissance Orbiter (LRO) and photographs taken by the astronauts. LRO's detailed and comprehensive remote sensing capabilities have fostered a reinterpretation of the geology of the site. || ",
"hits": 1170
},
{
"id": 4356,
"url": "https://svs.gsfc.nasa.gov/4356/",
"result_type": "Visualization",
"release_date": "2015-09-15T00:00:00-04:00",
"title": "LRO and the September 27-28, 2015 Lunar Eclipse: Telescopic View",
"description": "On September 28, 2015 (the night of September 27), the Moon enters the Earth's shadow, creating a total lunar eclipse. This visualization simulates the view through a telescope during the eclipse while also showing the position of the LRO spacecraft.",
"hits": 78
},
{
"id": 4341,
"url": "https://svs.gsfc.nasa.gov/4341/",
"result_type": "Visualization",
"release_date": "2015-09-01T00:00:00-04:00",
"title": "September 27, 2015 Total Lunar Eclipse: View from the Moon",
"description": "With the lunar horizon in the foreground, the Earth passes in front of the Sun, revealing the red ring of sunrises and sunsets along the limb of the Earth. The Earth and Sun are in Virgo for observers on the Moon. The bright star above them is beta Virginis.This video is also available on our YouTube channel. || eclipse.0540_print.jpg (1024x576) [77.0 KB] || eclipse.0540_searchweb.png (320x180) [47.4 KB] || eclipse.0540_thm.png (80x40) [3.4 KB] || from_moon_1080p30.mp4 (1920x1080) [7.4 MB] || from_moon_720p30.mp4 (1280x720) [3.2 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || from_moon_720p30.webm (1280x720) [3.7 MB] || from_moon_360p30.mp4 (640x360) [967.9 KB] || ",
"hits": 176
},
{
"id": 4349,
"url": "https://svs.gsfc.nasa.gov/4349/",
"result_type": "Visualization",
"release_date": "2015-08-28T18:00:00-04:00",
"title": "Supermoon Eclipse 2015",
"description": "The geometry of the Moon's orbit in motion, from the end of August until the supermoon eclipse on September 27-28, 2015. The inner blue circle shows perigee distance, the outer blue circle shows apogee distance, and the off-center, light gray circle shows the Moon's orbit. Frame sequences with alpha channel are available for the separate elements of the animation.This video is also available on our YouTube channel. || moon.0600_print.jpg (1024x576) [68.6 KB] || moon.0600_searchweb.png (180x320) [35.4 KB] || moon.0600_thm.png (80x40) [4.8 KB] || supermoon_1080p30.mp4 (1920x1080) [4.1 MB] || supermoon_720p30.mp4 (1280x720) [2.4 MB] || fancy (1920x1080) [0 Item(s)] || moon_earth (1920x1080) [0 Item(s)] || orbit (1920x1080) [0 Item(s)] || supermoon_720p30.webm (1280x720) [2.2 MB] || supermoon_360p30.mp4 (640x360) [1.0 MB] || 320x320_1x1_30p (320x320) [0 Item(s)] || 360x230_36x23_30p (360x230) [0 Item(s)] || ",
"hits": 110
},
{
"id": 4340,
"url": "https://svs.gsfc.nasa.gov/4340/",
"result_type": "Visualization",
"release_date": "2015-08-18T00:00:00-04:00",
"title": "September 27, 2015 Total Lunar Eclipse: Shadow View",
"description": "Universal Time (UT). The Moon moves right to left, passing through the penumbra and umbra, leaving in its wake an eclipse diagram with the times at various stages of the eclipse. || eclipse_ut_print.jpg (1024x576) [58.4 KB] || eclipse.0432_searchweb.png (180x320) [40.3 KB] || eclipse.0432_thm.png (80x40) [4.0 KB] || eclipse_ut_1080p30.mp4 (1920x1080) [3.0 MB] || eclipse_ut_720p30.mp4 (1280x720) [1.6 MB] || ut (1920x1080) [0 Item(s)] || eclipse_ut_720p30.webm (1280x720) [1.9 MB] || eclipse_ut_360p30.mp4 (640x360) [597.1 KB] || eclipse_ut_4340.key [4.3 MB] || eclipse_ut_4340.pptx [1.9 MB] || ",
"hits": 70
},
{
"id": 4289,
"url": "https://svs.gsfc.nasa.gov/4289/",
"result_type": "Visualization",
"release_date": "2015-05-08T00:00:00-04:00",
"title": "LRO Lowers Periapsis",
"description": "Lunar Reconnaissance Orbiter flies over Shackleton crater near the lunar south pole in this computer rendering. || lro_south_pole_print.jpg (1024x1024) [293.7 KB] || lro_south_pole_web.jpg (320x320) [32.7 KB] || lro_south_pole_searchweb.png (320x180) [89.9 KB] || lro_south_pole_thm.png (80x40) [6.6 KB] || lro_south_pole.tif (2400x2400) [6.3 MB] || ",
"hits": 46
},
{
"id": 4310,
"url": "https://svs.gsfc.nasa.gov/4310/",
"result_type": "Visualization",
"release_date": "2015-05-01T00:00:00-04:00",
"title": "Moon Phases Loop",
"description": "A looping animation showing a complete cycle of average lunar phases. || moon.0060_print.jpg (1024x576) [57.1 KB] || moon.0060_searchweb.png (320x180) [33.1 KB] || moon.0060_thm.png (80x40) [3.1 KB] || moon_720p30.mp4 (1280x720) [1.5 MB] || moon_1080p30.mp4 (1920x1080) [3.4 MB] || 1920x1080_16x9_30p (1920x1080) [16.0 KB] || moon_720p30.webm (1280x720) [873.0 KB] || moon_2160p30.mp4 (3840x2160) [11.6 MB] || moon_360p30.mp4 (640x360) [401.5 KB] || 5760x3240_16x9_30p (5760x3240) [16.0 KB] || moon_1080p30_4310.pptx [3.9 MB] || moon_1080p30_4310.key [6.3 MB] || ",
"hits": 1198
},
{
"id": 4242,
"url": "https://svs.gsfc.nasa.gov/4242/",
"result_type": "Visualization",
"release_date": "2015-03-17T14:00:00-04:00",
"title": "March 17, 2013 Lunar Impact Forms a New Crater",
"description": "Artist's conception of the March 17, 2013 lunar impact as seen from near the impact site in Mare Imbrium.This video is also available on our YouTube channel. || impactb.0172_print.jpg (1024x576) [43.7 KB] || impactb.0172_searchweb.png (320x180) [39.8 KB] || impactb.0172_thm.png (80x40) [3.6 KB] || from_moon_720p30.webmhd.webm (960x540) [249.9 KB] || from_moon_1080p30.mp4 (1920x1080) [629.5 KB] || from_moon_720p30.mp4 (1280x720) [298.3 KB] || from_moon (1920x1080) [0 Item(s)] || from_moon_360p30.mp4 (640x360) [100.4 KB] || from_moon_4242.key [2.8 MB] || from_moon_4242.pptx [390.9 KB] || ",
"hits": 379
},
{
"id": 4275,
"url": "https://svs.gsfc.nasa.gov/4275/",
"result_type": "Visualization",
"release_date": "2015-03-13T09:00:00-04:00",
"title": "The Total Solar Eclipse of 20 March 2015",
"description": "This narrated video shows visualizations of the March 20, 2015 solar eclipse from several vantage points in space, as well as an actual photo of a previous eclipse in 2012 taken by LRO from lunar orbit. Transcript. || G2015-026_ShadowOfTheMoon_print.jpg (1024x576) [96.1 KB] || G2015-026_ShadowOfTheMoon_searchweb.png (320x180) [60.2 KB] || G2015-026_ShadowOfTheMoon_thm.png (80x40) [5.0 KB] || G2015-026_ShadowOfTheMoon_youtube_hq.mov (1280x720) [35.7 MB] || G2015-026_ShadowOfTheMoon_1280x720.wmv (1280x720) [50.0 MB] || G2015-026_ShadowOfTheMoon_prores.mov (1280x720) [1.5 GB] || G2015-026_ShadowOfTheMoon_appletv.m4v (960x540) [46.5 MB] || G2015-026_ShadowOfTheMoon_appletv.webm (960x540) [14.4 MB] || G2015-026_ShadowOfTheMoon_appletv_subtitles.m4v (960x540) [46.5 MB] || G2015-026_ShadowOfTheMoon_nasaportal.mov (640x360) [34.1 MB] || G2015-026_ShadowOfTheMoon_ipod_lg.m4v (640x360) [20.0 MB] || Shadow.en_US.srt [1.9 KB] || G2015-026_ShadowOfTheMoon_ipod_sm.mp4 (320x240) [9.1 MB] || ",
"hits": 71
},
{
"id": 4236,
"url": "https://svs.gsfc.nasa.gov/4236/",
"result_type": "Visualization",
"release_date": "2014-12-09T06:00:00-05:00",
"title": "Moon Phase and Libration, 2015",
"description": " || New: Click on the image to download a high-resolution version with labels for craters near the terminator. The data in the table for the entire year can be downloaded as a JSON file or as a text file. || moon.0001.jpg (730x730) [92.5 KB] || comp.0001.tif (1920x1080) [2.5 MB] || ",
"hits": 227
},
{
"id": 4218,
"url": "https://svs.gsfc.nasa.gov/4218/",
"result_type": "Visualization",
"release_date": "2014-10-01T00:00:00-04:00",
"title": "Procellarum Rifts for the Cover of Nature",
"description": "Oceanus Procellarum, or the Ocean of Storms, is the largest of the dark maria visible to the naked eye on the near side of the Moon. Its relatively flat surface of basaltic lava covers most of the northwest quadrant of the Moon's disk.The leading explanation of Procellarum's origin is that it is a large, ancient impact basin. But the authors of a paper in the October 2, 2014 edition of the journal Nature suggest instead that this region is the result of the way the lunar crust cooled billions of years ago.The red in the image shown here is part of a pattern of gravity anomalies revealed by data from the Gravity Recovery and Interior Laboratory (GRAIL) mission. Jeffrey Andrews-Hanna and his coathors interpret this rectangular feature as a remnant of the plumbing system that moved magma to the surface of the Moon's near side, flooding low-lying areas with lava.The rectangular shape differs from the circular shape expected for an impact basin. It more closely resembles the pattern of cracks that form in materials subjected to thermal stress. In fact, the paper compares the shape of the Procellarum gravity anomaly with a feature spanning the south pole of Enceladus, the ice-covered moon of Saturn. || ",
"hits": 101
},
{
"id": 4193,
"url": "https://svs.gsfc.nasa.gov/4193/",
"result_type": "Visualization",
"release_date": "2014-08-08T09:00:00-04:00",
"title": "Supermoon 2014",
"description": "On August 10, 2014, the Moon will be full at the same time that it is closest to Earth for the year. This coincidence is sometimes called a supermoon.The Moon's orbit is very slightly elliptical and therefore somewhat off-center relative to the Earth. Each month, the Moon passes through points in its orbit called perigee and apogee, the closest and farthest points from the Earth for that month. Some perigees are a little closer than others. The closest perigee for 2014 occurs on August 10 at around 17:49 Universal Time, when the Moon will be 356,896 kilometers (221,765 miles) away. As it happens, this is only a few minutes before the time of peak full Moon at 18:10 UT, when the Moon's ecliptic longitude differs from the Sun's by exactly 180 degrees.How often does this happen? The period between perigees, called the anomalistic month, is 27.55 days, on average, while the time between Full Moons, called the synodic month, is 29.53 days. These two periods sync up every 413 days, or 1.13 years. 15 anomalistic months are about as long as 14 synodic months, so that's how often the pattern repeats.Recently, a much broader definition of \"supermoon\" has taken hold. It includes both Full and New Moons, and perigee merely needs to be \"close enough,\" generally within a couple of days. By this definition, there are six or seven supermoons every year, half of which can't be observed. Not so super!The actual shape of the Moon's orbit is another source of confusion. The orbit is often depicted as an almost cigar-shaped ellipse, but this is a misleading exaggeration. If you were to draw the orbit on a sheet of paper, its deviation from a perfect circle would be less than the thickness of your pencil point. The 50,000 kilometer (30,000 mile) difference between perigee and apogee is almost entirely due to the orbit being off-center. The difference between the semimajor and semiminor axes is less than 1000 kilometers (600 miles).The animation begins in mid-July, showing that perigee and Full Moon miss each other by about a day. It then shows apogee on July 28, when the Moon is almost 32 Earth diameters away. It ends on August 10, the day of the supermoon, when the distance to the Moon is 28 Earth diameters. The Moon graphic in the upper left shows the change in the Moon's apparent size as it moves closer and farther in its orbit. (The relative sizes of the Earth and Moon in the main orbit graphic are exaggerated by a factor of 15 to make them more easily visible.) || ",
"hits": 91
},
{
"id": 4185,
"url": "https://svs.gsfc.nasa.gov/4185/",
"result_type": "Visualization",
"release_date": "2014-07-18T09:00:00-04:00",
"title": "A New Look at the Apollo 11 Landing Site",
"description": "Apollo 11 landed on the Moon on July 20th, 1969, a little after 4:00 in the afternoon Eastern Daylight Time. The Lunar Module, nicknamed Eagle and flown by Neil Armstrong and Edwin \"Buzz\" Aldrin, touched down near the southern rim of the Sea of Tranquility, one of the large, dark basins that contribute to the Man in the Moon visible from Earth. Armstrong and Aldrin spent about two hours outside the LM setting up experiments and collecting samples. At one point, Armstrong ventured east of the LM to examine a small crater, dubbed Little West, that he'd flown over just before landing.The trails of disturbed regolith created by the astronauts' boots are still clearly visible in photographs of the landing site taken by the Lunar Reconnaissance Orbiter (LRO) narrow-angle camera (LROC) more than four decades later.LROC imagery makes it possible to visit the landing site in a whole new way by flying around a three-dimensional model of the site. LROC scientists created the digital elevation model using a stereo pair of images. Each image in the pair shows the site from a slightly different angle, allowing sophisticated software to infer the shape of the terrain, similar to the way that left and right eye views are combined in the brain to produce the perception of depth.The animator draped an LROC photograph over the terrain model. He also added a 3D model of the LM descent stage—the real LM in the photograph looks oddly flat when viewed at an oblique angle.Although the area around the site is relatively flat by lunar standards, West Crater (the big brother of the crater visited by Armstrong) appears in dramatic relief near the eastern edge of the terrain model. Ejecta from West comprises the boulders that Armstrong had to avoid as he searched for a safe landing site.Apollo 11 was the first of six increasingly ambitious crewed lunar landings. The exploration of the lunar surface by the Apollo astronauts, when combined with the wealth of remote sensing data now being returned by LRO, continues to inform our understanding of our nearest neighbor in space. || ",
"hits": 3364
},
{
"id": 4220,
"url": "https://svs.gsfc.nasa.gov/4220/",
"result_type": "Visualization",
"release_date": "2014-06-18T00:00:00-04:00",
"title": "Hyperwall: Tycho Central Peak",
"description": "This image set is formatted for NASA's hyperwall, a tiled display with a combined resolution of up to 9600 x 3240.On June 10, 2011, Lunar Reconnaissance Orbiter (LRO) slewed 65° to the west, allowing its narrow-angle camera (the LROC NAC) to capture this dramatic sunrise view of the mountains at the center of Tycho crater. It's not hard to see why this image was the winner of the Moon as Art contest.A popular target of amateur astronomers, Tycho is located at 43.3°S, 11.4°W, and is about 85 kilometers (55 miles) wide. A system of bright ejecta rays radiating from the crater is easily visible in binoculars and small telescopes during Full Moon. The crater's features are so steep and sharp because it's only about 110 million years old, quite young by lunar standards. || ",
"hits": 193
},
{
"id": 4221,
"url": "https://svs.gsfc.nasa.gov/4221/",
"result_type": "Visualization",
"release_date": "2014-06-18T00:00:00-04:00",
"title": "Hyperwall: Dionysius Crater",
"description": "This image set is formatted for NASA's hyperwall, a tiled display with a combined resolution of up to 9600 x 3240.Dionysius crater (17.297°E, 2.766°N) is situated on the western edge of Mare Tranquillitatis (the Sea of Tranquility) and excavates both bright (highland) and dark (mare) materials. Dark banded layers of mare peek out of the eastern wall, where mare material was disturbed by the impact that formed Dionysius crater. Bright talus trails wind downslope through crags and crannies in the dark mare scarps.Looking closely, the mare appears banded or striated, indicating a non-uniform material. In general, mare are thought to form from large volumes of fluid lavas, much like the Columbia River Basalts in the Pacific Northwest of North America. The stratifications in the lunar mare may represent a series of lava flows in the region. || ",
"hits": 130
},
{
"id": 4226,
"url": "https://svs.gsfc.nasa.gov/4226/",
"result_type": "Visualization",
"release_date": "2014-06-18T00:00:00-04:00",
"title": "Hyperwall: LOLA Slope Map",
"description": "Part of the LOLA slope map of the Moon centered on the south pole. The prime meridian (0° longitude) is up. || slope_map_3x1_print.jpg (1024x345) [284.4 KB] || slope_map_3x1_web.jpg (320x108) [25.0 KB] || slope_map_3x1_searchweb.png (320x180) [154.5 KB] || slope_map_3x1_thm.png (80x40) [8.5 KB] || slope_map_3x1.tif (9600x3240) [80.7 MB] || slope_map_16x9.tif (5760x3240) [49.6 MB] || lola-slope-map.hwshow || ",
"hits": 246
},
{
"id": 4175,
"url": "https://svs.gsfc.nasa.gov/4175/",
"result_type": "Visualization",
"release_date": "2014-06-17T00:00:00-04:00",
"title": "GRAIL Gravity Map for the Cover of Geophysical Research Letters",
"description": "This print-resolution still image was created for the cover of the May 28, 2014 issue of Geophysical Research Letters. It features a free-air gravity map of the Moon's southern latitudes developed by S. Goossens et al. from data returned by the Gravity Recovery and Interior Laboratory (GRAIL) mission.If the Moon were a perfectly smooth sphere of uniform density, the gravity map would be a single, featureless color, indicating that the force of gravity at a given elevation was the same everywhere. But like other rocky bodies in the solar system, including Earth, the Moon has both a bumpy surface and a lumpy interior. Spacecraft in orbit around the Moon experience slight variations in gravity caused by both of these irregularities.The free-air gravity map shows deviations from the mean gravity that a cueball Moon would have. The deviations are measured in milliGals, a unit of acceleration. On the map, purple is at the low end of the range, at around -400 mGals, and red is at the high end near +400 mGals. Yellow denotes the mean.The map shown here extends from the south pole of the Moon up to 50°S and reveals the gravity for that region in even finer detail than the global gravity maps published previously. The image illustrates the very good correlation between the gravity map and topographic features such as peaks and craters, as well as the mass concentration lying beneath the large Schrödinger basin in the center of the frame. The terrain in the image is based on Lunar Reconnaissance Orbiter (LRO) altimeter and camera data. || ",
"hits": 114
},
{
"id": 4156,
"url": "https://svs.gsfc.nasa.gov/4156/",
"result_type": "Visualization",
"release_date": "2014-04-10T00:00:00-04:00",
"title": "LRO and the Lunar Eclipse of April 15, 2014: Telescopic View",
"description": "|| || eclipse.0001.jpg (730x730) [104.6 KB] || eclipse.0001.tif (1920x1080) [2.5 MB] ||",
"hits": 104
},
{
"id": 4157,
"url": "https://svs.gsfc.nasa.gov/4157/",
"result_type": "Visualization",
"release_date": "2014-04-10T00:00:00-04:00",
"title": "Lunar Eclipse of April 15, 2014 As Viewed from the Moon",
"description": "In the early morning hours of April 15, 2014, the Moon enters the Earth’s shadow, creating a total lunar eclipse. When viewed from the Moon, as in this animation, the Earth hides the Sun. A red ring, the sum of all Earth’s sunrises and sunsets, lines the Earth’s limb and casts a ruddy light on the lunar landscape. With the darkness of the eclipse, the stars come out.The city lights of North and South America are visible on the night side of the Earth. The part of the Earth visible in this animation is the part where the lunar eclipse can be seen. || ",
"hits": 192
},
{
"id": 4158,
"url": "https://svs.gsfc.nasa.gov/4158/",
"result_type": "Visualization",
"release_date": "2014-04-10T00:00:00-04:00",
"title": "Lunar Eclipses and the Moon's Orbit",
"description": "The animations on this page illustrate the Moon’s orbit and its role in lunar and solar eclipses. A solar eclipse happens when the Moon’s shadow falls on the Earth, while a lunar eclipse happens when the Earth’s shadow falls on the Moon.Eclipses can only happen at New and Full Moon, when the Earth, Moon, and Sun are all in a straight line. But they don’t happen every New and Full Moon, because the Moon’s orbit is tilted by about 5 degrees. As the Earth and Moon travel around the Sun, the tilt of the Moon’s orbit changes direction relative to the Sun.This is analogous to the way the tilt of the Earth causes seasons. Just like winter and summer happen every six months, eclipses tend to occur on a roughly six-month cycle.Unlike most eclipse shadow diagrams, the first three animations here don’t greatly exaggerate the scale of the Earth and Moon. They are only 2x their true scale. The view is exactly perpendicular to the Earth-Sun line. The angle of the Moon’s orbital tilt and the “tapering” of the shadows are both accurate. The orbit happens to be calculated for the months preceding the April 15, 2014 total lunar eclipse. || ",
"hits": 615
},
{
"id": 4155,
"url": "https://svs.gsfc.nasa.gov/4155/",
"result_type": "Visualization",
"release_date": "2014-04-07T00:00:00-04:00",
"title": "LRO and the Lunar Eclipse of April 15, 2014: Shadow View",
"description": "In the early morning hours of April 15, 2014, the Moon enters the Earth’s shadow, creating a total lunar eclipse, the first of four that are visible in the Western Hemisphere in the next two years. This animation shows the changing appearance of the Moon as it travels into and out of the Earth’s shadow, along with the times at various stages. Versions of the animation have been created for each of the four time zones of the contiguous United States.All of North and South America will see this eclipse, and you won’t need special equipment to see it. Just stay up late, go outside and look up!The penumbra is the part of the Earth’s shadow where the Sun is only partially covered by the Earth. The umbra is where the Sun is completely hidden.The animation includes the position of the Lunar Reconnaissance Orbiter spacecraft. LRO is powered by sunlight, but during the eclipse, it will have to rely on its battery for almost three hours. || ",
"hits": 201
},
{
"id": 4129,
"url": "https://svs.gsfc.nasa.gov/4129/",
"result_type": "Visualization",
"release_date": "2013-12-20T10:00:00-05:00",
"title": "Earthrise: The 45th Anniversary",
"description": "In December of 1968, the crew of Apollo 8 became the first people to leave our home planet and travel to another body in space. But as crew members Frank Borman, James Lovell, and William Anders all later recalled, the most important thing they discovered was Earth.Using photo mosaics and elevation data from Lunar Reconnaissance Orbiter (LRO), this video commemorates the 45th anniversary of Apollo 8's historic flight by recreating the moment when the crew first saw and photographed the Earth rising from behind the Moon. Narrator Andrew Chaikin, author of A Man on the Moon, sets the scene for a three-minute visualization of the view from both inside and outside the spacecraft accompanied by the onboard audio of the astronauts.The visualization draws on numerous historical sources, including the actual cloud pattern on Earth from the ESSA-7 satellite and dozens of photographs taken by Apollo 8, and it reveals new, historically significant information about the Earthrise photographs. It has not been widely known, for example, that the spacecraft was rolling when the photos were taken, and that it was this roll that brought the Earth into view. The visualization establishes the precise timing of the roll and, for the first time ever, identifies which window each photograph was taken from.The key to the new work is a set of vertical stereo photographs taken by a camera mounted in the Command Module's rendezvous window and pointing straight down onto the lunar surface. It automatically photographed the surface every 20 seconds. By registering each photograph to a model of the terrain based on LRO data, the orientation of the spacecraft can be precisely determined.Andrew Chaikin's article Who Took the Legendary Earthrise Photo From Apollo 8? appeared in the January, 2018 issue of Smithsonian magazine. It includes the story of the making of this visualization.A Google Hangout discussion of this visualization between Ernie Wright (creator of the visualization), Andrew Chaikin, John Keller (LRO project scientist), and Aries Keck (NASA media specialist) was held on December 20, 2013. A replay of that hangout is available here.Ernie Wright presented a talk about the making of this animation at the 2014 SIGGRAPH Conference in Vancouver. He also wrote a NASA Wavelength blog entry about Earthrise that includes links to educator resources related to LRO. || ",
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},
{
"id": 4118,
"url": "https://svs.gsfc.nasa.gov/4118/",
"result_type": "Visualization",
"release_date": "2013-12-06T00:01:00-05:00",
"title": "Moon Phase and Libration, 2014",
"description": " || The data in the table for the entire year can be downloaded as a JSON file or as a text file. || moon.0001.jpg (730x730) [27.9 KB] || comp.0001.tif (1920x1080) [1.5 MB] || ",
"hits": 156
},
{
"id": 4119,
"url": "https://svs.gsfc.nasa.gov/4119/",
"result_type": "Visualization",
"release_date": "2013-12-06T00:01:00-05:00",
"title": "Moon Phase and Libration, 2014 South Up",
"description": " || The data in the table for the entire year can be downloaded as a JSON file or as a text file. || moon.0001.jpg (730x730) [27.7 KB] || comp.0001.tif (1920x1080) [1.5 MB] || ",
"hits": 46
},
{
"id": 4109,
"url": "https://svs.gsfc.nasa.gov/4109/",
"result_type": "Visualization",
"release_date": "2013-10-02T00:00:00-04:00",
"title": "Lunar Far Side: From Luna 3 to LRO",
"description": "In October of 1959, the Luna 3 spacecraft launched from the Baikonur Cosmodrome in Kazakhstan. Luna 3 was the third spacecraft to reach the Moon and the first to send back pictures of the Moon's far side. The pictures were noisy and indistinct, but because the Moon always presents the same face to the Earth, they offered views of a part of the Moon that had never been seen before.The far side of the Moon is surprisingly different. The most striking difference evident in the Luna 3 pictures is the absence of the large, dark seas of cooled lava, called maria, that cover a substantial fraction of the Earth-facing near side. The far side is instead densely peppered with impact craters of every size and age.Fifty years later, in June of 2009, Lunar Reconnaissance Orbiter (LRO) launched from Kennedy Space Center in Florida. Using LRO's global elevation maps and photographic mosaics, both of which are of unprecedented quality and detail, it's possible to accurately recreate the view captured in the pictures from Luna 3. As seen here, Luna 3 was directly over 12°N 120°E at a distance of 61,700 kilometers above the surface, and its camera was banked 17.5° clockwise from vertical relative to the Moon's north pole.The thicker blue longitude line at 90°E, along the left side of the LRO image, marks the boundary between the near and far sides of the Moon. To the left of that line are the familiar maria Crisium (the circular spot near the 9 o'clock position), Marginis, Smythii (both east of Crisium), Humboldtianum (in the north), Australe (near the south pole), and the eastern edge of Fecunditatis. The bright spot near the center of the disk is a complex of unnamed craters bordered by King, Langemak, Gregory, and Abul Wafa craters. The brightness is enhanced because it's near the subsolar point. The dark, sharp-edged shield shape in the southern hemisphere, with the white dot in the middle, is Tsiolkovskiy crater and its central peak. The dark spot to the southeast of Tsiolkovskiy is the crater Jules Verne. The mare in the northeast is Moscoviense. || ",
"hits": 1820
},
{
"id": 4107,
"url": "https://svs.gsfc.nasa.gov/4107/",
"result_type": "Visualization",
"release_date": "2013-09-27T12:00:00-04:00",
"title": "Moon Map for InOMN 2013",
"description": "October 12, 2013 is International Observe the Moon Night (InOMN), an annual public outreach event that encourages people from around the world to look up at our nearest neighbor in space. The map on this page was produced as an observing aid for the event. It shows the phase and libration of the Moon for noon Universal Time on the date of the event, with labels for many of the features that are visible on that date. A corresponding observing list is available as a PDF.The list includes items visible with the naked eye and with binoculars as well as telescopic targets. The Moon is just past First Quarter. Naked eye observers can see the shape and orientation of the daylit side and the difference in brightness of the northern and southern parts. They can probably make out the two largest maria, the Seas of Serenity and Tranquility. Those with keen eyes might also discern several less prominent maria, as well as a couple of bright spots near the southeastern limb.These bright spots, near the craters Langrenus and Stevinus, are easier to see in binoculars, which will also show the Apennine Mountains and the irregularity of the terminator, the line between day and night. A telescope reveals that the terminator crosses a densely cratered region in the south, and elsewhere, it can resolve long, cliff-like scarps and the remnants of an extinct volcano. Although Apollo artifacts can't be seen by any Earthbound telescope, four of the six landing sites are in daylight at First Quarter. || ",
"hits": 469
},
{
"id": 4084,
"url": "https://svs.gsfc.nasa.gov/4084/",
"result_type": "Visualization",
"release_date": "2013-06-21T01:00:00-04:00",
"title": "Supermoon 2013",
"description": "On June 23, 2013, the Moon will be full at the same time that it is closest to Earth for the year. This coincidence is sometimes called a supermoon.The Moon's orbit is slightly elliptical and therefore a little off-center relative to the Earth. Each month, the Moon passes through points in its orbit called perigee and apogee, the closest and farthest points from the Earth for that month. Some perigees are a little closer than others. The closest perigee for 2013 occurs on June 23 at around 11:18 Universal Time, when the Moon will be 356,991 kilometers (221,824 miles) away. As it happens, this is only a few minutes before the time of peak full Moon at 11:32 UT, when the Moon's ecliptic longitude differs from the Sun's by exactly 180 degrees.How often does this happen? The period between perigees, called the anomalistic month, is 27.55 days. The time between full Moons, called the synodic month, is 29.53 days. These two periods sync up every 413 days, or 1.13 years. 15 anomalistic months are about as long as 14 synodic months. So that's how often the pattern repeats.The animation begins in May, showing that perigee and full Moon miss each other by about a day. It then shows apogee on June 9, when the Moon is almost 32 Earth diameters away. It ends on June 23, the day of the supermoon, when the distance to the Moon is 28 Earth diameters. The Moon graphic in the upper left shows the change in the Moon's apparent size as it moves closer and farther in its orbit. (The relative sizes of the Earth and Moon in the main orbit graphic are exaggerated by a factor of 15 to make them more easily visible.)By another coincidence, the supermoon occurs just two days after the northern summer solstice, when the Sun reaches its highest point in the northern hemisphere sky. The second animation shows the relationship between the Sun and the Earth at both the summer and winter solstice. || ",
"hits": 97
},
{
"id": 4067,
"url": "https://svs.gsfc.nasa.gov/4067/",
"result_type": "Visualization",
"release_date": "2013-06-05T11:00:00-04:00",
"title": "Moon Phase and Libration, 2013 South Up",
"description": " || The data in the table for the entire year can be downloaded as a JSON file or as a text file. || moon.0002.jpg (730x730) [94.7 KB] || comp.0001.tif (1920x1080) [2.3 MB] || ",
"hits": 170
},
{
"id": 4057,
"url": "https://svs.gsfc.nasa.gov/4057/",
"result_type": "Visualization",
"release_date": "2013-03-25T00:00:00-04:00",
"title": "LEND Looks for Water at the South Pole",
"description": "Since Lunar Reconnaissance Orbiter (LRO) entered lunar orbit in 2009, its neutron detector, LEND, has been counting the neutrons coming from the Moon's surface.Neutrons are created when galactic cosmic rays strike atoms in the lunar regolith. These neutrons bounce from atom to atom like billiard balls, losing energy with each collision. Along the way, some of these neutrons escape into space, where LEND can detect them.The presence of hydrogen in the lunar soil reduces the number of neutrons that escape. To map out likely deposits of water ice, LEND scientists look for this deficit of neutrons in the epithermal (medium) energy range.If the deficit were simply due to random fluctuations, the hydrogen map would never coalesce into a sharp image, but as this animation shows, the map of epithermal neutron deficit at the south pole of the Moon improves over time and converges on particular spots. These include especially strong signals in the permanently shadowed parts of Cabeus and Shoemaker craters, where ice would be completely shielded from the sun. But LEND and other missions have found signs of water in places that aren't permanently shadowed while apparently excluding some places that are, both of which are surprising and exciting discoveries. || ",
"hits": 336
},
{
"id": 4054,
"url": "https://svs.gsfc.nasa.gov/4054/",
"result_type": "Visualization",
"release_date": "2013-03-19T13:00:00-04:00",
"title": "LAMP Observes GRAIL Impact",
"description": "The Gravity Recovery and Interior Laboratory (GRAIL) mission comprised a pair of satellites that together measured the gravity field of the Moon. GRAIL ended its mission with a planned impact into the side of a lunar mountain on December 17, 2012. Lunar Reconnaissance Orbiter (LRO) maneuvered into an orbit that would allow it to observe the impact. One of LRO's instruments, the Lyman-Alpha Mapping Project (LAMP), looked for the chemical signatures of a number of elements, including hydrogen and mercury, in the dust plume kicked up by the impact.This animation shows the relative positions of GRAIL and LRO at the time of the impact, as well as the view from LAMP as it scanned for the dust plume. The LAMP sensor is a 6.0° x 0.3° slit that was positioned to look over the limb of the Moon, so that it would be pointed into the tenuous dust plume with only the sky in the background. This observation was possible, in part, because GRAIL impacted on the night side of the Moon, where there was no concern that LAMP's sensitive detector could be blinded by sunlit terrain. From Earth, the Moon was a waxing crescent at the time of the impact. || ",
"hits": 42
},
{
"id": 4043,
"url": "https://svs.gsfc.nasa.gov/4043/",
"result_type": "Visualization",
"release_date": "2013-03-06T11:00:00-05:00",
"title": "LRO Peers into Permanent Shadows",
"description": "The Moon's permanently shadowed regions, or PSRs, are places on the Moon that haven't seen the Sun in millions, or even billions, of years. The Earth's tilted axis allows sunlight to fall everywhere on its surface, even at the poles, for at least part of the year. But the Moon's tilt relative to the Sun is only 1.6°, not enough to get sunlight into some deep craters near the lunar north and south poles. PSRs are therefore some of the coldest, darkest places in the solar system.Because of that, PSRs are expected to be excellent traps for volatiles, chemicals that would normally vaporize and escape into space, and this includes water. Lunar Reconnaissance Orbiter (LRO) includes several instruments designed to peer into the PSR darkness and measure temperature, reflectivity, and neutron absorption, all of which are clues to what chemicals might be hiding there. This animation shows where the PSRs are and in what ways LRO can see inside them. || ",
"hits": 513
},
{
"id": 4041,
"url": "https://svs.gsfc.nasa.gov/4041/",
"result_type": "Visualization",
"release_date": "2013-02-08T00:00:00-05:00",
"title": "GRAIL Free-Air Gravity Map for the Cover of Science",
"description": "These print-resolution stills were created for the cover of the February 8, 2013 issue of Science. They show the free-air gravity map developed by the Gravity Recovery and Interior Laboratory (GRAIL) mission.If the Moon were a perfectly smooth sphere of uniform density, the gravity map would be a single, featureless color, indicating that the force of gravity at a given elevation was the same everywhere. But like other rocky bodies in the solar system, including Earth, the Moon has both a bumpy surface and a lumpy interior. Spacecraft in orbit around the Moon experience slight variations in gravity caused by both of these irregularities.The free-air gravity map shows deviations from the mean, the gravity that a cueball Moon would have. The deviations are measured in milliGals, a unit of acceleration. On the map, dark purple is at the low end of the range, at around -400 mGals, and red is at the high end near +400 mGals. Yellow denotes the mean.These views show a part of the Moon's surface that's never visible from Earth. They are centered on lunar coordinates 29°N 142°E. The large, multi-ringed impact feature near the center is Mare Moscoviense. The crater Mendeleev is south of this. The digital elevation model for the terrain is from the Lunar Reconnaissance Orbiter laser altimeter (LOLA). Merely for plausibility, the sun angle and starry background are accurate for specific dates (December 21, 2012, 0:00 UT and January 8, 2013, 14:00 UT, respectively). || ",
"hits": 186
},
{
"id": 4023,
"url": "https://svs.gsfc.nasa.gov/4023/",
"result_type": "Visualization",
"release_date": "2012-12-17T09:00:00-05:00",
"title": "GRAIL Impacts the Moon",
"description": "The Gravity Recovery and Interior Laboratory (GRAIL) mission comprises a pair of satellites launched in September, 2011 and placed in orbit around the Moon in January, 2012. The two satellites, named Ebb and Flow, used radio signals to precisely measure their separation as they flew in formation, one following the other in the same nearly circular polar orbit. These measurements allowed mission scientists to build up an accurate and detailed gravity map of the Moon.GRAIL ends its successful mission by impacting the Moon on December 17, 2012 at approximately 5:27 p.m. EST (22:27 UT). The two spacecraft were placed in an orbit that takes them within a kilometer of the surface, so low that they will hit the side of an unnamed mountain that lies between Mouchez and Philolaus craters, near the north pole at 75°45'N, 26°11'W. Ebb strikes first, followed 24 seconds later by Flow.This animation shows the last three orbits of the two spacecraft, with views of the impact site. The impact occurs on the night side of a waxing crescent Moon, so the view shifts from a natural color Moon to a false-color elevation map. || ",
"hits": 204
},
{
"id": 4014,
"url": "https://svs.gsfc.nasa.gov/4014/",
"result_type": "Visualization",
"release_date": "2012-12-05T12:00:00-05:00",
"title": "GRAIL Primary Mission Gravity Maps (AGU 2012)",
"description": "The Gravity Recovery and Interior Laboratory (GRAIL) mission comprises a pair of satellites launched in September, 2011 and placed in orbit around the Moon in January, 2012. The two satellites, named Ebb and Flow, used radio signals to precisely measure their separation as they flew in formation, one following the other in the same nearly circular polar orbit. These measurements allowed mission scientists to build up an accurate and detailed gravity map of the Moon.If the Moon were a perfectly smooth sphere of uniform density, the gravity experienced by the spacecraft would be exactly the same everywhere. But like other rocky bodies in the solar system, including the Earth, the Moon has both a bumpy surface and a lumpy interior. As the spacecraft fly in their orbits, they experience slight variations in gravity caused by both of these irregularities, variations which show up as small changes in the separation of the two spacecraft.The free-air gravity map shows these variations directly. (Free-air is a historical term; there is, of course, no air on the Moon.) The Bouguer gravity map subtracts the effect of the bumpy surface to show the lumpiness underneath. The elevation maps from the laser altimeter on Lunar Reconnaissance Orbiter (LRO) were used to create a model of what the gravity would be if the Moon were bumpy but not lumpy. This model was then subtracted from the free-air map to produce the Bouguer map. (Note: The Bouguer map shown here was filtered to emphasize smaller features; harmonic degrees 1 to 6 were excluded.)The crustal thickness map is inferred from the Bouguer map: If the density of the crust is assumed to be uniform, then the gravity anomalies visible in the Bouguer gravity map can be explained by variations in the thickness of the crust. Highs in gravity indicate places where the denser mantle is closer to the surface, and hence where the crust is thinner.While aiding navigation for future lunar missions, GRAIL's gravity measurements reveal information about the internal structure of the Moon, improving our understanding of the origin and development of not just the Moon, but also the Earth and the rest of the inner solar system. || ",
"hits": 166
},
{
"id": 4000,
"url": "https://svs.gsfc.nasa.gov/4000/",
"result_type": "Visualization",
"release_date": "2012-11-20T12:00:00-05:00",
"title": "Moon Phase and Libration, 2013",
"description": " || The data in the table for the entire year can be downloaded as a JSON file or as a text file. || moon.0002.jpg (730x730) [94.6 KB] || comp.0001.tif (1920x1080) [2.3 MB] || ",
"hits": 386
},
{
"id": 3959,
"url": "https://svs.gsfc.nasa.gov/3959/",
"result_type": "Visualization",
"release_date": "2012-09-27T00:00:00-04:00",
"title": "RXTE Views X-ray Pulsar Occulted by the Moon",
"description": "On Oct. 13, 2010, NASA's Rossi X-ray Timing Explorer (RXTE), a satellite in low-Earth orbit, observed a bursting X-ray pulsar as it was eclipsed by the Moon. This provided scientists with an unusual opportunity to calculate the precise position of the pulsar by timing its disappearance and reappearance at the edge of the Moon's disk.The story began a few days earlier, on Oct. 10, when the European Space Agency's INTEGRAL satellite detected a transient X-ray source in the direction of Terzan 5, a globular star cluster about 25,000 light-years away toward the constellation Sagittarius. This was the start of an extradordinary series of outbursts that ended Nov. 19. The object, dubbed IGR J17480-2446, is classed as a low-mass X-ray binary system, where a neutron star orbits a star much like the Sun and draws a stream of matter from it. As only the second bright X-ray source to be found in Terzan 5, scientists shortened the name of the system to T5X2. As shown in this animation, ingress (the moment when the pulsar disappeared) occurred on the Moon's eastern limb just above the equator. Egress, 8 minutes 32 seconds later, was near the south pole on the western limb. The timing of ingress and egress depended delicately on the shape of the terrain. In other words, it mattered whether the pulsar passed behind a mountain or a valley. So the calculation relied on the detailed topography measured by both JAXA's Kaguya and NASA's Lunar Reconnaissance Orbiter.The animation faithfully reproduces the angle of the Sun, the position of RXTE, the position and orientation of the Moon as seen from the satellite, the Moon's topography, and the starry background. RXTE's position was derived from the Goddard Flight Dynamics Facility ephemeris for day 6129 of the satellite's orbit, while the Sun and Moon positions came from JPL's DE421 solar system ephemeris. All of the positions and the viewing direction were transformed into Moon body-fixed coordinates, so that in the animation software, the Moon remained stationary at the origin, while the camera moved and pointed appropriately. The Moon, the stars, the pulsar, and the clock were all rendered separately and layered together. || ",
"hits": 120
},
{
"id": 4716,
"url": "https://svs.gsfc.nasa.gov/4716/",
"result_type": "Visualization",
"release_date": "2012-06-21T00:00:00-04:00",
"title": "Visualizing Shackleton Crater",
"description": "A visualization of Shackleton crater. The near (Earth-facing) side of the Moon is to the right. In the false-color elevation on the left, red is higher and blue is lower. || shackleton_split_final_print.jpg (1024x1024) [280.9 KB] || shackleton_split_final_searchweb.png (320x180) [87.2 KB] || shackleton_split_final_thm.png (80x40) [7.1 KB] || shackleton_split_final.tif (3600x3600) [12.8 MB] || ",
"hits": 917
},
{
"id": 3936,
"url": "https://svs.gsfc.nasa.gov/3936/",
"result_type": "Visualization",
"release_date": "2012-04-19T00:00:00-04:00",
"title": "Earthrise",
"description": "The famous color photograph known as Earthrise, as well as a black-and-white image taken a minute earlier, document the moment when Earth was seen for the first time by human eyes from behind the Moon. They were taken on December 24, 1968 by the crew of Apollo 8, the first humans to leave low Earth orbit.The sight of a small, intensely blue Earth rising above the barren, gray horizon of the Moon was one of the few things that NASA and the crew of Apollo 8 had not thoroughly planned and rehearsed beforehand. As historian Robert Poole noted, this lack of preparation meant that the sight of Earth came with the force of a revelation, not just for the astronauts but for everyone on the ground. We came all this way to explore the Moon, Apollo 8 astronaut Bill Anders said, and the most important thing is that we discovered the Earth.Using the latest elevation data from Lunar Reconnaissance Orbiter, this visualization attempts to recreate what the astronauts saw. The virtual camera of the rendering software is put in the position of the Apollo 8 spacecraft at the time of the photographs, as the spacecraft emerged from its fourth pass behind the Moon. It shows a two-minute interval centered on 16:39:06 UT (10:39 a.m. Houston time) on December 24, 1968. This is around the time of AOS (acquisition of signal), the moment when radio contact is re-established after being lost on the far side of the Moon.The position and motion of the spacecraft are based on a state vector, a set of (x, y, z) position and (vx, vy, vz) velocity values, published in NASA's Apollo 8 Mission Report about a year after the flight. The animator translated these values, given in Moon-centered inertial coordinates for Besselian year 1969.0, into a modern coordinate system, then calculated an orbit. The spacecraft was 110 km (68 miles, 60 nautical miles) above the surface of the Moon at 11.2°S 113.8°E when the Earthrise photograph was taken. || ",
"hits": 1446
}
]
}