Posted by jburk to Planetology at July 6, 2005 11:12 PM

On the whole, Mars can seem rather boring. It is covered with basalt, the most basic type of rock, and generally appears to lack geologic diversity. It does not shake or rumble much. And then there's that red dust everywhere. But a closer look reveals pockets of rocks that rival the complexity of our own planet. The finding means Mars is more active beneath the surface than scientists realized.