Rhea

Rhea is the fifth major satellite of Saturn, may be one of the most heavily cratered satellites in the solar system. Its surface appears to be saturated with craters, but long, bright linear features can be seen on the trailing hemisphere and linear ridges can be seen in the leading hemisphere. These ancient features may record changes in Rhea's shape due to internal heating or cooling.Rhea
==References==
Category:Saturn's moons
Category:Natural satellites