Northern lights (aurora borealis), snow, and treeline in the Arctic Circle just outside of Fairbanks, Alaska
The northern lights (aurora borealis) is caused by the collision of charged particles with the atoms in the Earth's atmosphere. Colorful dances of green, yellow, and red are common, as the ribbons of light dance across the night sky. These pictures were taken just outside of Fairbanks, Alaska, on the edge of the Arctic Circle.
, arctic circle
, aurora borealis
, night sky
, northern lights