Meet 'Churymoon'! Photographer Spots Tiny Moon in 2015 Rosetta Comet Photos
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Europe's Rosetta spacecraft wasn't the only object circling Comet 67P/Churyumov-Gerasimenko back in 2015.
Europe's Rosetta spacecraft wasn't the only object circling Comet 67P/Churyumov-Gerasimenko back in 2015.