Experimental Petrology - Main focus: Hawaii Scientific Drilling Project expet.gps.caltech.edu
Geobiology/Astrobiology - Studying the interaction of life with the physical earth. www.gps.caltech.edu/options/geobiology
Glaciology - Interested in the study of ice in all of its manifestations and the study of all natural phenomena where ice is involved. skua.gps.caltech.edu
Mars Surface - Spacecraft studies of Mars surface--mapping and geology www.gps.caltech.edu/~marssurf
Planetary Astronomy @ Caltech - Investigates our solar system and the solar neighborhood primarily through observational methods, both surface and spacecraft-based. Also interested in extra-solar planetary systems. www.gps.caltech.edu/~pa