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Science Aurora Borealis could be visible in much of Canada, northern US

Aurora Borealis: A powerful solar flare is shaking up the Earth's magnetic field, producing a light show in the sky for much of North America.

Rune Stoltz Bertinussen/Scanpix Norway/AP

Northerners thawing out from a bitter freeze may get rewarded with shimmering northern lights the next couple days.

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