I am primarily interested in geological processes on the icy satellites of the outer solar system, and I have been involved with various NASA projects such as the Galileo mission to Jupiter and the Cassini mission to Saturn. I am trying to figure out what caused the deformation that we see in the grooved terrain on Ganymede, the chaotic terrain on Europa, and the fractures on Enceladus and Dione. Titan has also become a research focus for me, with the new revelations of icy terrain dominated by dunes and river channels. I have also investigated geological and geophysical problems on Venus, Triton, and Pluto
