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Earth | Time Lapse View from Space, Fly Over | NASA, ISS

14 Nov 2011, 05:49 UTC
Earth | Time Lapse View from Space, Fly Over | NASA, ISS
(200 words excerpt, click title or image to see full post)

Nice time-lapse.
–Ben
The X-Ray Sun Over 5.5 Years
Behold five and a half years worth of full-sun observations from XRT. A dramatic illustration of the solar cycle, this movie begins about one year before the first reversed-polarity sunspot ushered in the current cycle on January 8, 2008. The solar cycle is a periodic variation in the Sun’s activity that is caused by the gradual ‘tangling’ and eventual reversal of its magnetic field.
http://www.nasa.gov/multimedia/videogallery/index.html?media_id=152622071

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