What happens when a moon is thrown out of orbit? It may never happen to our moon, but Mars has some unique examples. Fobos and Deimos are two asteroid-like moons that orbit the red planet in different ways. Fobos is the larger of the two with an extremely close orbit to Mars that inches closer and closer every year, culminating to six feet closer every century. There are already places on Mars's surface where Fobos cannot be seen due to how closely it hugs in orbit. It will eventually crash into Mars or crumble apart due to tidal forces in around 50 million years. Deimos is smaller in comparison with an orbit that is slowly widening, leading to it doing the opposite and eventually flying off into space. Moons like these are a good example of all the possible planetary scenarios playing out in the vastness of space.