Otheaworldly
Surrealistic northern glow
The northern lights glow an otherworldly green above southwest Iceland on Jan. 22, boosted by an especially active sun. Auroras, visible mostly at very high and very low latitudes, occur when charged particles from the sun hit atoms in the upper atmosphere, creating curtains of light which often shift and undulate. "The show on the 22nd was the largest I've seen in recent years, maybe in the last 20 years," photographer Atli Arnarson told Live Science. "The pictures don't really do it justice. They were quite active at times, and danced across the sky."
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