Aurora Borealis: Nature's Holiday Light Display

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aurora borealis swirl photo
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Named after Aurora, the Roman goddess of the dawn, and Boreas, Greek for "northern wind," the aurora borealis is more commonly known as the "northern lights."

"Polar lights," however, is a more accurate name, as they occur in both the northern and southern hemispheres, but intensify with increasing proximity to the magnetic poles.

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Image credit: nick_russill/Flickr