Phobos & Deimos
Phobos and Deimos are two Martian moons, measuring 17 miles and 9 miles across, respectively. So far, space agencies have not managed to land spacecraft on either moon. But as is the case with our Moon, Phobos and Deimos likely have details of Mars’ formation locked away in their rocky strata. Phobos’ orbit is also shrinking as it circles Mars, which means the moon may either crash into Mars or be torn apart by the planet in the next 100 million years. We should’ve expected this from the planet named for a war god.
