At 7:30pm EDT on Sunday, July 22nd, a 3,000-foot asteroid will pass by Earth at a distance of 3.2 million miles. 2002 AM31, discovered ten years ago, has no chance of impact, but its relative proximity means that you'll be able to see the journey through the Slooh Space Camera in the Canary Islands. The telescope's images are viewable here, and Wired will be streaming from Slooh as well.