The Planet Hoth
A planet exactly like Hoth can actually exist, something George Lucas likely did not know back in the 1970s. In fact, we’ve found MANY Hoth-like planets. They are pretty interesting. On our Earth, tectonics and even forming reservoirs of magma create volcanoes whenever this magma finds its way to the surface. That gives us rock. However, in planets without atmospheres like our own, ice manages to become very cold and will operate exactly like rock does on Earth. This is exactly what you see in Saturn’s moon, Titan. They have rivers of methane and ethane that produce a crust of watery ice-rock.