Tuesday, 18 July 2017

Ancient, massive asteroid impact could explain Martian geological mysteries

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A colossal impact with a large asteroid early in Mars' history may have ripped off a chunk of the northern hemisphere and left behind a legacy of metallic elements in the planet's interior. The crash also created a ring of rocky debris around Mars that may have later clumped together to form its moons, Phobos and Deimos.
via Science Daily
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