Too close for comfort. To put it in perspective Geosynchronous satellites are at 22,000 miles. This is going to come in a third lower.

Asteroid to Buzz Earth Next Week

www.popularmechanics.com

Amateur astronomers in Spain have spotted a 150-foot-wide rock that will pass within a mere 17,000 miles of Earth's surface—closer than a communications satellite—on Feb. 15.