Thursday, July 23, 2009

AURORA BOREALIS


AURORA SURPRISE: Last night, July 21st and 22nd, a solar wind stream hit Earth's magnetic field and surprised observers with an unexpected display of auroras. Northern Lights swept across parts of Canada and descended as far south as the Dakotas, Montana, Iowa and Wisconsin in the United States. Photos of the display are featured on today's edition of http://spaceweather.com .

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