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Phobos
& Deimos:� Two �misplaced�
asteroids?
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Grooves seem related to the
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large crater called �Stickney�
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Phobos
and Diemos are small (~25 km and ~15 km diam.) moons of Mars
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Look
like captured asteroids rather than moons formed in place
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Are
�C� class � i.e. dark �Carbonaceous� type �asteroids�
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