The largest solar storm in five years sent a huge wave of radiation into earth's atmosphere creating a brilliant show of the aurora borealis near Yellowknife, N.W.T. on Thursday March 8, 2012. Yellowknife, which is situated directly under the auroral "oval", has some of the best northern lights viewing in the world. Truckers returning from the diamond mines 330 kilometres northeast enjoy the nighttime spectacle as they cruised down the ice road on Prosperous Lake. (AP Photo/Bill Braden, The Canadian Press)