Lauren Edgar, 40, considers Sammamish, Washington, her hometown. She earned a bachelor's degree in Earth sciences from Dartmouth College, and her master's and doctorate in geology from the California Institute of Technology. Edgar has served as the deputy principal investigator for the Artemis III Geology Team. In this role, she helped define lunar science goals, geology activities NASA astronauts will conduct, and science operations for NASA's return to the Moon. She also spent more than 17 years supporting Mars exploration rovers. She was working at the U.S. Geological Survey at the time of her selection.