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aurora borealis explained
 Submitted By: phip42 on 1/18/2007
THE AURORA has a curtain-like shape, and the altitude of its lower edge is sixty or seventy miles, about ten times higher than a jet aircraft flies.
AURORAS OCCUR along ring-shaped regions around the north and south geomagnetic poles. Fairbanks, Ala... more
Tags: arora borealis lights night stars
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