Space
#RosettaWatch: 67P formed when two baby comets got together
A gentle dance involving two chunks of dirty ice may explain the distinctive duck-like shape of the Rosetta probe's quarry
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A gentle dance involving two chunks of dirty ice may explain the distinctive duck-like shape of the Rosetta probe's quarry
For 13 hours today, astronomers thought Earth had gained a new, temporary moon – but it turned out to be the Gaia space telescope