Aurora Borealis - 1000 (Puzzle)

The Northern Lights, or Aurora Borealis, is a natural light phenomenon that can be seen in the sky, typically north of the Arctic Circle, but the phenomenon has actually been seen as far south as London. The image on the puzzle was taken in Muonio, Finland, which is one of the best places in the world to see the Northern Lights. The picture was taken in December, and the temperature was below -30 degrees Celsius.