Titan's Surface

Scientists studying the surface of Saturn's moon Titan see parallels in the geologic forces  at work on Titan and on Earth.  Erosion by river networks-- rivers of water here, rivers of methane there-- have shaped both surfaces, for example.

Scientists also find relatively few large craters on Titan, which suggests a fairly young surface.  They also assume, however, that Titan is roughly as old as all the other major bodies in the Solar System.  That would mean the surface is renewed, as is Earth's, erasing old scars.  On Earth, the main erasers are geologic processes like vulcanism and plate techtonics, and the researchers think the same sort of forces may be operating on Titan.