The discoveries could reshape our understanding of the planet’s geological history and its potential for future volcanic ...

Mars also lacks an active plate tectonic system, the geologic engine that drives our active Earth, and is also missing a planetary magnetic field. The absence of this protective barrier makes it ...

The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface ...

My main research interests are the geologic, hydrologic, and climatic histories of the planet Mars and all things related. In particular, I work on problems dealing with past fluvial erosion on Mars, ...