With a flash of light, a meteorite screams across the skies of central Russia. The size of a bus, it would land near the city of Chelyabinsk, leaving a path of destruction in its wake. Now - two days after the meteor hit - the cleanup has begun. Workers on Sunday began repairing some of the 1700 buildings damaged by the comet, which sent fireballs cascading across central Russia. Students at this university are replacing windows knocked out by the massive shockwave that followed the meteor.