Norwegian multimedia journalist Per Byhring made a video in collaboration with the physics department at the University of Oslo explaining how solar storms travel through space -- sometimes at speeds of over 8 million kilometers an hour -- and become magnificent light shows visible from the poles of the Earth.
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This article available online at:
http://www.theatlantic.com/technology/archive/2011/07/video-of-the-day-how-the-northern-lights-come-to-earth/241412/