Was 29 years at the time of selection. Hails from Lafayette, Colorado. She graduated from Stanford University with a bachelor's degree in geological and environmental sciences, then went on to earn a doctorate in geology from the University of California, Los Angeles. Watkins has worked at NASA's Ames Research Center and Jet Propulsion Laboratory and currently is a postdoctoral fellow at the California Institute of Technology, where she collaborates on the Mars Science Laboratory rover, Curiosity. Her personal interests include playing rugby, coaching basketball, writing short stories, rock climbing, and flying planes.