Tuesday 29 September 2015

How Rosetta's comet got its shape

IRON AND ICE
How Rosetta's comet got its shape
Paris (ESA) Sep 29, 2015 - Two comets collided at low speed in the early Solar System to give rise to the distinctive 'rubber duck' shape of Comet 67P/Churyumov-Gerasimenko, say Rosetta scientists. The origin of the comet's double-lobed form has been a key question since Rosetta first revealed its surprising shape in July 2014. Two leading ideas emerged: did two comets merge or did localised erosion of a single object for ... more


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