mars moons

An astronomer is suggesting that Mars once had a large moon that exerted enough force to create a large bulge on its surface.

Gone Girl

But where the heck is it?

Mars Appears to Be Missing a Moon, Astronomer Finds

Phobos has always puzzled astronomers for its asteroid like qualities. Now, using the ESA's Mars Express spacecraft, they've peered beneath its surface.

mars moons

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