People view the Northern Lights over Bamburgh Castle Beach Thursday in Northumberland, England. A powerful solar flare caused the aurora borealis to be visible farther south than usual. Josh Maidwell/Barcroft Media/Landov hide caption

itoggle caption Josh Maidwell/Barcroft Media/Landov

The northern lights over Tromsoe, northern Norway, on Jan. 24, 2012. Rune Stoltz Bertinussen/AFP/Getty Images hide caption

itoggle caption Rune Stoltz Bertinussen/AFP/Getty Images