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Philae science results: Comet 67P is crunchy on the outside, soft on the inside

Emily Lakdawalla • May 09, 2018 • 1

What is the surface of a comet like? That's one of the main questions that motivated Philae's mission to the surface of comet 67P/Churyumov-Gerasimenko. We now know the comet has a rigid crust about 10 to 50 centimeters thick, below which the comet is much more fluffy.

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