Chelyabinsk asteroid crashed in space before hitting Earth: scientists
Friday, May 23, 2014 - 15:00
in Astronomy & Space
CAPE CANAVERAL Fla. (Reuters) - An asteroid that exploded last year over Chelyabinsk, Russia, leaving more than 1,000 people injured by flying glass and debris, collided with another asteroid before hitting Earth, new research by scientists shows.