What was that?! That was the asteroid dubbed “2011 MD”. It flew by earth at about 12000 miles per hour. Discovered June 22, the asteroid came so close that amateur astronomers were able to get a glimpse. Some say this stray would have broken up in the atmosphere. Other scientist theorize a violent collision, leaving a large crater. The mind races with possible doomsday scenarios. New Ice Age? Famine and drought? Massive tsunamis? Could we have shot this thing down? Check out the NASA near earth object program.