A tourist takes photos of an Aurora Borealis display (Northern Lights) over the Bals-Fiord north of the Arctic Circle, near the village of Mestervik late September 30, 2014. (Photo by Yannis Behrakis/Reuters)

An Aurora Borealis (Northern Lights) is seen over a mountain camp north of the Arctic Circle, near the village of Mestervik late September 30, 2014. (Photo by Yannis Behrakis/Reuters)

An Aurora Borealis (Northern Lights) is seen over a mountain camp north of the Arctic Circle, near the village of Mestervik late September 30, 2014. (Photo by Yannis Behrakis/Reuters)

Vehicles drive by as a display of Aurora Borealis (Northern Lights) is seen north of the Arctic Circle, over the village of Mestervik in northern Norway September 30, 2014. (Photo by Yannis Behrakis/Reuters)

An Aurora Borealis (Northern Lights) is seen over a fishing harbour at the Bals-Fiord north of the Arctic Circle, near the village of Mestervik late September 30, 2014. (Photo by Yannis Behrakis/Reuters)

An Aurora Borealis (Northern Lights) is seen at the Bals-Fiord north of the Arctic Circle, near the village of Mestervik late September 30, 2014. (Photo by Yannis Behrakis/Reuters)

A tourist takes photos of an Aurora Borealis (Northern Lights) over the Bals-Fiord north of the Arctic Circle, near the village of Mestervik late September 30, 2014. (Photo by Yannis Behrakis/Reuters)

An Aurora Borealis (Northern Lights) is seen over a mountain camp north of the Arctic Circle, near the village of Mestervik early October 1, 2014. (Photo by Yannis Behrakis/Reuters)