Witness Asteroid 2002 AM31 As It Zips By Earth On Sunday July 22nd

This weekend Space buffs are in for a special treat - On Sunday, July 22nd 2012, an asteroid the size of a city block will zip past earth in its closest approach since it was discovered in 2002. Estimated to be between 2,000 to 4,500 feet wide, the Asteroid 2002 AM31 will get within 4.65 million miles or about 14 times the moon's distance from Earth.