Lights appear in the sky over the woods in Canada's Northwest

The Northern Lights appear in the sky over the woods in Canada's Northwest Territories in this picture taken February 14, 2008. More formally known as aurora borealis, the lights have made the northern mining center of Yellowknife -- population roughly 20,000 -- a travel hub for mostly Japanese tourists eager to take advantage of the town's nearly ideal viewing conditions. Picture taken February 14. To match feature

The Northern Lights appear in the sky over the woods in Canada's Northwest Territories in this picture taken February 14, 2008. More formally known as aurora borealis, the lights have made the northern mining center of Yellowknife -- population roughly 20,000 -- a travel hub for mostly Japanese tourists eager to take advantage of the town's nearly ideal viewing conditions. Picture taken February 14. To match feature