KANGERLUSSUAQ, GREENLAND - SEPTEMBER 02: (ISRAEL OUT) Tourists admire The Aurora Borealis as it glows in the sky September 02, 2007, near the Greenland town of Kangerlussuaq. The Northern Lights most often occurs from September to October and from March to April and are a popular tourist attraction. (Photo by Uriel Sinai/Getty Images)
KANGERLUSSUAQ, GREENLAND - SEPTEMBER 02: (ISRAEL OUT) Tourists admire The Aurora Borealis as it glows in the sky September 02, 2007, near the Greenland town of Kangerlussuaq. The Northern Lights most often occurs from September to October and from March to April and are a popular tourist attraction. (Photo by Uriel Sinai/Getty Images)