MARS!... NASA's Mars Exploration Rovers - MER - [left] have been exploring the surface of Mars since January 2004. The two rovers are still going strong and performing on-site geologic investigations in separate regions on Mars. ESA's Mars Express [right] also began operation in January 2004 and continues to return data from orbit.
Planetary Geology at ASU
Planetary Geology is the study of the origin, evolution, and distribution of matter condensed in the form of planets, satellites, comets and asteroids. The approach used at Arizona State University in solving planetary geology problems incorporates results from spacecraft data analyses, laboratory simulations of various planetary processes, and field studies of features on Earth analogous to extraterrestrial features.