Scientists at the European Space Agency are celebrating a landmark event, with the successful entry of the Rosetta spacecraft into the orbit of a comet after a ten-year journey. Deborah Lutterbeck ... more 
Scientists at the European Space Agency are celebrating a landmark event, with the successful entry of the Rosetta spacecraft into the orbit of a comet after a ten-year journey. Deborah Lutterbeck reports. less 
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Wed, Aug 6, 2014 1:05 PM EDT