aurora borealis, Northern lights
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We may receive a commission on purchases made from links. If you look up at the sky late at night and see clouds of multicolored light swirling in the darkness, you aren't witnessing an alien invasion; it's just the aurora borealis, aka the northern lights.
Add Yahoo as a preferred source to see more of our stories on Google. On Nov. 11, much of the United States, including Tennessee, was treated to a stunning spectacle of multicolored lights dancing across the evening sky. This phenomenon, known as the ...