John Grotzinger

John Grotzinger is a planetary geologist and NASA scientist who has worked on several high-profile Mars missions, including the Mars Science Laboratory rover. He is currently the Chair of the Division of Geological and Planetary Sciences at the California Institute of Technology. Grotzinger has a Ph.D. in geology from Harvard University and has published numerous papers on Mars geology and the search for life on the Red Planet. He is known for his expertise in Mars geology and his contributions to the field of planetary science. Grotzinger has also been involved in several Mars-related research projects, including the Mars Exploration Program and the Mars Science Laboratory rover. He is a fellow of the American Academy of Arts and Sciences and a member of the National Academy of Sciences. Grotzinger has also been involved in several Mars-related research projects, including the Mars Exploration Program and the Mars Science Laboratory rover. He is a fellow of the American Academy of Arts and Sciences and a member of the National Academy of Sciences.