Long-lost moon explains Mars' terrain

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Space

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A long-lost moon could explain Mars' weird shape and extreme terrain

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A long-lost moon could explain why Mars is so different from the other rocky planets in the solar system.

Nerio 's mass altered the shape of Mars with its gravity, raising tides in the magma oceans the same way Earth 's moon raises tides in our oceans today .

It could have been obliterated by a collision, leaving behind Mars ' current moons, Phobos and Deimos .

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English

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