Aurora Borealis

A stuning Aurora Borealis from the night of October 8-9, 2012, that filled the entire sky for Jason Ahrns in Cleary Summit, Alaska.   Image credit: Jason Ahrns   Used with permission.

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“This lens has a near-180 degree field of view from corner to corner – this swirl covered the entire sky, and put off enough light to read the focus indicator on my lens.”

via universetoday