1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth.
2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours.
3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes.
TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "items": [ { "id": 275441, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437754, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_print.jpg", "filename": "IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_print.jpg", "media_type": "Image", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 275442, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437755, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_searchweb.png", "filename": "IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_searchweb.png", "media_type": "Image", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 320, "height": 180, "pixels": 57600 } }, { "id": 275443, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437756, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_thm.png", "filename": "IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080_thm.png", "media_type": "Image", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 80, "height": 40, "pixels": 3200 } }, { "id": 275430, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437750, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/WSI_WEATHER_CHANNEL_2017SolarEclipse_1920x1080.mov", "filename": "WSI_WEATHER_CHANNEL_2017SolarEclipse_1920x1080.mov", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 275431, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437746, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/WSI_WEATHER_CHANNEL_2017SolarEclipse_1280x720.mov", "filename": "WSI_WEATHER_CHANNEL_2017SolarEclipse_1280x720.mov", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 275432, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437751, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/NBC_TODAY_2017SolarEclipse_NBC_Today.mov", "filename": "NBC_TODAY_2017SolarEclipse_NBC_Today.mov", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 275433, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437757, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/2017SolarEclipse.wmv", "filename": "2017SolarEclipse.wmv", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 275434, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437748, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/2017SolarEclipse.avi", "filename": "2017SolarEclipse.avi", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 275435, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437749, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/BARON_SERVICE_2017SolarEclipse_baron.mp4", "filename": "BARON_SERVICE_2017SolarEclipse_baron.mp4", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 275436, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437747, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/WC_PRORES_422_2017SolarEclipse_prores.mov", "filename": "WC_PRORES_422_2017SolarEclipse_prores.mov", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 275437, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437745, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/IPAD_DELIVERABLES_2017SolarEclipse_iPad_960x540.m4v", "filename": "IPAD_DELIVERABLES_2017SolarEclipse_iPad_960x540.m4v", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 960, "height": 540, "pixels": 518400 } }, { "id": 275438, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437752, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/IPAD_DELIVERABLES_2017SolarEclipse_iPad_1280x720.m4v", "filename": "IPAD_DELIVERABLES_2017SolarEclipse_iPad_1280x720.m4v", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1280, "height": 720, "pixels": 921600 } }, { "id": 275439, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437744, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080.m4v", "filename": "IPAD_DELIVERABLES_2017SolarEclipse_iPad_1920x1080.m4v", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 1920, "height": 1080, "pixels": 2073600 } }, { "id": 275440, "type": "media", "extra_data": null, "title": null, "caption": null, "instance": { "id": 437753, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012000/a012049/WEBM_2017SolarEclipse.webm", "filename": "WEBM_2017SolarEclipse.webm", "media_type": "Movie", "alt_text": "LEAD: NASA scientists and astronomers are already planning for the first total solar eclipse for the United States in 38 years. 1. On August 21, 2017, the moon will pass between the sun and Earth in an alignment that will cast the moon's shadow onto Earth. 2. A dark shadow of the moon, 170 miles wide, will sweep across the U.S. over the course of one-and-a-half hours. 3. People in cities lying within the narrow path of the shadow (red line in the video) will experience an eerie sense of twilight as day turns to night and back to day again within roughly 2-2.5 minutes. TAG: Solar astronomers will use the solar eclipse to study the outer atmosphere of the sun. \r\r", "width": 960, "height": 540, "pixels": 518400 } } ], "extra_data": {} } ], "studio": "gms", "funding_sources": [ "PAO" ], "credits": [ { "role": "Producer", "people": [ { "name": "Howard Joe Witte", "employer": "ADNET Systems, Inc." } ] }, { "role": "Video editor", "people": [ { "name": "Sophia Roberts", "employer": "USRA" } ] } ], "missions": [], "series": [], "tapes": [], "papers": [], "datasets": [], "nasa_science_categories": [ "Sun" ], "keywords": [ "HDTV", "Solar Eclipse" ], "recommended_pages": [], "related": [ { "id": 4390, "url": "https://svs.gsfc.nasa.gov/4390/", "page_type": "Visualization", "title": "2017 Eclipse: Earth, Moon and Sun", "description": "The Moon moves right to left in its orbit around the Earth. The shadow it casts hits the Earth during the August 21, 2017 total solar eclipse. || sun_earth.0240_print.jpg (1024x576) [41.2 KB] || sun_earth.0240_searchweb.png (320x180) [37.9 KB] || sun_earth.0240_thm.png (80x40) [3.9 KB] || eclipse2017sunearth_1080p30.mp4 (1920x1080) [3.6 MB] || eclipse2017sunearth_720p30.mp4 (1280x720) [1.6 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || eclipse2017sunearth_720p30.webm (1280x720) [2.7 MB] || eclipse2017sunearth_360p30.mp4 (640x360) [514.7 KB] || eclipse2017sunearth_1080p30.mp4.hwshow [193 bytes] || ", "release_date": "2015-10-20T00:00:00-04:00", "update_date": "2025-01-05T22:50:38.885412-05:00", "main_image": { "id": 438663, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004390/sun_earth_eclipse_print.jpg", "filename": "sun_earth_eclipse_print.jpg", "media_type": "Image", "alt_text": "A print-resolution still image showing the Earth, Moon, and Sun at 17:05:40 UTC during the August 21, 2017 eclipse. The image is 12 × 9 inches at 300 DPI.", "width": 1024, "height": 768, "pixels": 786432 } }, { "id": 4314, "url": "https://svs.gsfc.nasa.gov/4314/", "page_type": "Visualization", "title": "2017 Total Solar Eclipse in the U.S.", "description": "A view of the United States during the total solar eclipse of August 21, 2017, showing the umbra (black oval), penumbra (concentric shaded ovals), and path of totality (red) through or very near several major cities. || usa.0780_print.jpg (1024x576) [144.7 KB] || usa.0780_searchweb.png (320x180) [90.1 KB] || usa.0780_thm.png (80x40) [6.8 KB] || eclipse2017usa_1080p30.mp4 (1920x1080) [26.0 MB] || eclipse2017usa_720p30.mp4 (1280x720) [14.0 MB] || eclipse2017usa_720p30.webm (1280x720) [5.0 MB] || fancy (1920x1080) [0 Item(s)] || eclipse2017usa_2160p30.mp4 (3840x2160) [69.5 MB] || eclipse2017usa_360p30.mp4 (640x360) [5.1 MB] || fancy (3840x2160) [0 Item(s)] || 9600x3240_3x1_30p (9600x3240) [0 Item(s)] || 2017_US_eclipse_4314.pptx [14.6 MB] || 2017_US_eclipse_4314.key [17.1 MB] || ", "release_date": "2015-09-09T10:00:00-04:00", "update_date": "2025-02-02T00:07:13.266670-05:00", "main_image": { "id": 442536, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004314/usa.0780_print.jpg", "filename": "usa.0780_print.jpg", "media_type": "Image", "alt_text": "A view of the United States during the total solar eclipse of August 21, 2017, showing the umbra (black oval), penumbra (concentric shaded ovals), and path of totality (red) through or very near several major cities.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 4321, "url": "https://svs.gsfc.nasa.gov/4321/", "page_type": "Visualization", "title": "2017 Eclipse Shadow Cones", "description": "The umbral and penumbral shadow cones travel across the surface of the Earth during the August 21, 2017 total solar eclipse. || cones.0885_print.jpg (1024x576) [79.2 KB] || cones.0885_searchweb.png (320x180) [46.7 KB] || cones.0885_thm.png (80x40) [4.1 KB] || shadow_cones_1080p30.mp4 (1920x1080) [13.9 MB] || shadow_cones_720p30.mp4 (1280x720) [6.9 MB] || shadow_cones_720p30.webm (1280x720) [5.6 MB] || shadow_cones_720p30.wmv (1280x720) [17.9 MB] || 1920x1080_16x9_30p (1920x1080) [0 Item(s)] || shadow_cones_360p30.mp4 (640x360) [2.3 MB] || 2017-eclipse-shadow-cones-mp4.hwshow [217 bytes] || ", "release_date": "2015-09-09T10:00:00-04:00", "update_date": "2025-01-05T00:06:11.167278-05:00", "main_image": { "id": 442334, "url": "https://svs.gsfc.nasa.gov/vis/a000000/a004300/a004321/cones.0885_print.jpg", "filename": "cones.0885_print.jpg", "media_type": "Image", "alt_text": "The umbral and penumbral shadow cones travel across the surface of the Earth during the August 21, 2017 total solar eclipse.", "width": 1024, "height": 576, "pixels": 589824 } } ], "sources": [], "products": [], "newer_versions": [], "older_versions": [], "alternate_versions": [] }