Space.com - Joe Rao, 9/21/12
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AuroraMAX observatory took this image of an auroral display over Yellowknife, Canada, on September 12, 2012. |
The arrival of the autumnal equinox this Saturday (Sept. 22) signals a transition from northern summer to fall in an astronomical sense. But it also signals the start of aurora-watching season.
From now through the end of October, the chances of sighting the glow of the mysterious northern lightswill be reaching a peak.
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