Rosetta comet likely formed from 2 separate objects
Monday, September 28, 2015 - 09:00
in Astronomy & Space
BERLIN (AP) -- When the Rosetta space probe sent back its first close-up pictures of a comet last year, scientists got a bit of a surprise: Instead of the ball of rock and ice they had expected, the comet turned out to have two distinct lobes connected by a "neck."...