Rosetta may have spotted comet’s primordial ingredients

December 18, 2014 2:49 PM

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New images reveal 67P’s craggy terrain

SAN FRANCISCO — The dynamic, rugged terrain of comet 67P/Churyumov-Gerasimenko may be exposing the meter-wide building blocks that make up the comet, scientists reported December 17 at the American Geophysical Union’s fall meeting. If confirmed, the finding could give scientists an unprecedented loo...

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