Solar storms amp up Northern Lights

Associated Press
The northern lights fill the sky over the south shore of Lake Superior east of Superior, Wis. above Duluth, Minn., early Sunday, July 15, 2012. A solar storm sparked the spectacular northern lights display in the skies over the Upper Midwest. (AP Photo/The Duluth News-Tribune, Andrew Krueger)

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Massive solar flares contributed to spectacular light shows in the skies above central Minnesota over the weekend. July 16, 2012. 

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