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An interesting aspect of Mars’s moons is that they orbit counter to the direction of Mars’s rotation. The tidal transfer of angular momentum from earth to our moon results in the moon receding at a rate of about one centimeter (roughly 3/8 inches) a year away from earth. The same phenomenon on Mars causes his moons’ orbit to gradually decrease, and in a few million years they will enter Mars’s atmosphere and deorbit, crashing into the surface! What a spectacle our descendants will be able to witness!