Comet 67P may be two comets, "smooshed together"

Comet 67P looks to have been glued together, not sculpted

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Originally Posted by Ars Technica

Last week, we covered the latest piece of research to come out of the Rosetta mission studying comet 67P, which involved some interesting ice action in the shadows of the comet’s skinny “neck.” That action probably encourages extra erosion in the shadows, which may explain why the neck is so thin. It puts another mark in the column for the hypothesis that the comet’s strange shape is the result of sculpting from an initially conventional shape.

The other hypothesis is that comet 67P is actually two comets, long ago welded together after a chance meeting. New research published in this week’s Nature puts a rather large mark in the column for this hypothesis.

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Comet 67P may be two comets, "smooshed together"