Life on Mars?
The Gusev Crater (centre) region, the Ma' Adim Vallis (canyon, bottom) with the Apollinaris Patera (vulcano), Oerberus top left. Direction of view: south to north.
A possible landing site for the next Mars mission (MER-A 2003)
Gusev Crater appears to be the site of an ancient lakebed fed with water through the canyon Ma' Adim Vallis.