Northern LightsDecember 13, 2012 at 3:11 PMLink CopiedRead full article1 / 7Photographer on Arctic Trek Snags Stunning Northern Lights PhotosThe northern lights above a sign marking the edge of the Arctic Circle.Mike Theiss / National GeographicThe Northern Lights, also known as Aurora Borealis, occurs when energy particles from the sun interact with the earth’s magnetic field. View comments