On the surface of today’s most well-studied comet, we see fields of rubble everywhere. From great boulders down to gravel, sand and dust, a surface littered with debris. Why would an evaporating clump of ice and dust look more like the debris-strewn surface of Mars than any comet that scientist ever dared to dream of?
This video is the third in a series of reports on the Rosetta Mission. First two updates: Comets May Not Be What We Thought and Oops! No Water on Comet 67P?
