Huge Surprise for Rosetta Comet Scientists: Twins!

Europe’s Rosetta comet probe has revealed that its target, Comet 67P/Churyumov-Gerasimenko, has a Siamese twin, a thrilling discovery for scientists preparing for Rosetta’s August rendezvous... but it will also be a huge challenge. Continue reading →

July 17, 2014
11:52 AM EDT