Rosetta Comet Likely Formed From 2 Separate Objects
Monday, September 28, 2015 - 12:30
in Astronomy & Space
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."