NASA announces astronaut candidate class for 2021

NASA announces astronaut candidate class for 2021 Jessica A. Wittner, Lieutenant Commander, U.S. Navy. A California native, she holds a bachelor’s in aerospace engineering from the University of Arizona, Tucson, and a master’s in aerospace engineering from the U.S. Naval Postgraduate School, Monterey, California. (ROBERT MARKOWITZ NASA-JSC/NASA)