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This image sequence begins over the the Southern Ocean halfway between Africa and Antarctica. Green and Red Aurora Australis is visible throughout the time series. Towards the end, Australia comes into view and the yellow night lights of Perth and smaller cities are visible. || ", "release_date": "2024-05-07T00:00:00-04:00", "update_date": "2025-03-03T01:00:52.929914-05:00", "main_image": { "id": 1091717, "url": "https://svs.gsfc.nasa.gov/vis/a030000/a031200/a031281/ISS067_20220817_192407_aurora_print.jpg", "filename": "ISS067_20220817_192407_aurora_print.jpg", "media_type": "Image", "alt_text": "Time series of photos from the International Space station show aurora australis.", "width": 1024, "height": 576, "pixels": 589824 } }, { "id": 12902, "url": "https://svs.gsfc.nasa.gov/12902/", "page_type": "Produced Video", "title": "The Secrets behind Earth’s Multi-colored Glow", "description": "What does our planet look like from space? Most are familiar with the beloved images of the blue marble or pale blue dot — Earth from 18,000 and 3.7 billion miles away, respectively. But closer to home, within the nearest region of space, you might encounter an unfamiliar sight. If you peer down on Earth from just 300 miles above the surface, near the orbit of the International Space Station, you can see vibrant swaths of red and green or purple and yellow light emanating from the upper atmosphere. This is airglow. Airglow occurs when atoms and molecules in the upper atmosphere, excited by sunlight, emit light in order to shed their excess energy. Or, it can happen when atoms and molecules that have been ionized by sunlight collide with and capture a free electron. In both cases, they eject a particle of light — called a photon — in order to relax again. 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NASA is taking advantage of the Aug. 21, 2017 eclipse by funding 11 ground-based scientific studies. As our scientists prepare their experiments for next week, we're looking back to an historic 1860 total solar eclipse, which many think gave humanity our first glimpse of solar storms — called coronal mass ejections — 100 years before scientists first understood what they were.Scientists observed these eruptions in the 1970s during the beginning of the modern satellite era, when satellites in space were able to capture thousands of images of solar activity that had never been seen before. But in hindsight, scientists realized their satellite images might not be the first record of these solar storms. Hand-drawn records of an 1860 total solar eclipse bore surprising resemblance to these groundbreaking satellite images.Eclipse archive imagery from: http://mlso.hao.ucar.edu/hao-eclipse-archive.php || ", "release_date": "2017-08-17T11:00:00-04:00", "update_date": "2023-05-03T13:47:25.682531-04:00", "main_image": { "id": 411950, "url": "https://svs.gsfc.nasa.gov/vis/a010000/a012600/a012693/LARGE_MP4-12693_FirstCMEDuringEclipse_large.00139_print.jpg", "filename": "LARGE_MP4-12693_FirstCMEDuringEclipse_large.00139_print.jpg", "media_type": "Image", "alt_text": "Complete transcript available.Music credits: ‘Electricity Wave’ by Jean-François Berger [SACEM] and ‘Solar Winds’ by Ben Niblett [PRS], Jon Cotton [PRS]Watch this video on the NASA Goddard YouTube channel.", "width": 1024, "height": 576, "pixels": 589824 } } ], "newer_versions": [], "older_versions": [], "alternate_versions": [] }