Jeffrey Plaut is a Project Scientist and researcher in the Geophysics and Planetary Geosciences group at NASA’s Jet Propulsion Laboratory in Pasadena. He received a Ph.D. in Earth and Planetary Sciences from Washington University in St. Louis. Since he has been at JPL he has worked on missions to Venus, Earth, Mars and the moons of Jupiter. He is currently the Project Scientist on the 2001 Mars Odyssey mission and a leader on radar science experiments on Mars (MARSIS and SHARAD) and Jupiter (RIME and REASON) missions. His areas of interest are evolution of the surfaces and interiors of solid planets, and radar remote sensing for geologic information.