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Not Right For WatchKnowLearn
Ages: 9 - 18
788 Views:
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Scientists call them "polar auroras" (or "aurorae polares"). In northern latitudes, the effect is known as the aurora borealis, named after the Roman goddess of dawn, Aurora, and the Greek name for north wind, Boreas. It often appears as a greenish g...low or sometimes a faint red, as if the sun was rising from an unusual direction. The aurora borealis is also called the northern polar lights, as it is only visible in the North sky from the Northern Hemisphere. This work is licensed under a Creative Commons Attribution 2.5 License. (04:39)
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June 7, 2011 at 07:41 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
397 Views:
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Lately, the International Space Station has been flying through geomagnetic storms, giving astronauts an close-up view of the aurora borealis just outside their windows. These videos were taken by the crew of Expedition 30 on board the International ...Space Station. First, get an introduction into the beauty of aurorae.
1st Segment:
The sequence of shots was taken March 3, 2012 from 17:59:48 to 18:16:25 GMT, on a pass from eastern Kenya, near the Indian Ocean, to the South Indian Ocean, east of the Kerguelen Islands. This video begins as the ISS travels southeast from eastern Africa over the Arabian Sea and the Indian Ocean. The first land we see is that of the Mauritius and Reunion Islands east of Madagascar. The pass continues over the Indian Ocean, where there are heavy clouds blocking the view of the water. Finally, the Aurora Australis begins to appear, as well as a faded view of the Milky Way.
2nd Segment:
The sequence of shots was taken March 4, 2012 from 17:19:17 to 17:27:10 GMT, on a pass over the South Indian Ocean. This video again focuses on the Aurora Australis as the ISS passes over the South Indian Ocean, from northeast of the Kerugelen Islands to south of Australia. The streaks of the aurora are very visible and active in this video, as the ISS passes right over the green lights.
3rd Segment:
The sequence of shots was taken March 10, 2012 from 14:49:58 to 15:05:37 GMT, on a pass from the South Indian Ocean to southeast New Zealand. This video mainly focuses on the Aurora Australis over the Southern Hemisphere. As the ISS traveled southeast and then northeast, the crew captured the bands of the Aurora Australis as the Milky Way made an appearance in the star field.
Credit: NASA ISS/JSC/Science@NASA
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June 25, 2012 at 12:54 PM
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Not Right For WatchKnowLearn
Ages: 10 - 18
847 Views:
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Auroras are natural atmospheric phenomena created when the solar wind interacts with Earth's magnetosphere, which means that an increase in aurora activity indicates an increase in space weather. In this interactive slideshow from NOVA Online, see st...unning images of auroral displays and learn about where and how auroras are formed.
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September 5, 2010 at 08:07 PM
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Not Right For WatchKnowLearn
Ages: 3 - 18
340 Views:
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Auroras are natural atmospheric phenomena created when the solar wind interacts with Earth's magnetosphere, which means that an increase in aurora activity indicates an increase in space weather. In this interactive slideshow from NOVA Online, see st...unning images of auroral displays and learn about where and how auroras are formed.
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May 4, 2012 at 11:00 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
801 Views:
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Part 3 "What causes auroras?" Rick Wilder – Virginia Tech. Exploring the aurora when it’s too bright out to see it directly so you have to look at it with instruments. They are measuring the similarities and differences between the North and South po...lar auroras. Run time 01:56.
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June 30, 2009 at 01:00 PM
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