Stofan’s research has focused on the geology of Venus, Mars, Saturn’s moon Titan, and Earth. She is an associate member of the Cassini Mission to Saturn Radar Team and a co-investigator on the Mars Express Mission’s MARSIS sounder. She was also the principal investigator on the Titan Mare Explorer, a proposed mission for a floating lander to be sent to Titan. From 1991 through 2000, she held a number of senior scientist positions at NASA’s Jet Propulsion Laboratory in Pasadena, California, including chief scientist for NASA’s New Millennium Program, deputy project scientist for the Magellan Mission to Venus, and experiment scientist for Spaceborne Imaging Radar-C (SIR-C), an instrument that provided radar images of Earth on two Space Shuttle flights in 1994. Stofan has written and published numerous professional papers, books and book chapters, and has chaired committees including the National Research Council Inner Planets Panel for the recent Planetary Science Decadal Survey and the Venus Exploration Analysis Group.