| Jan Kowalski | Jessica Wittner | 
| Geburtsdatum | 01.01.1983 | 
| Nationalität | American | 
| Weltraumagentur | National Aeronautics and Space Administration (NASA) | 
| Status | Schulung | 
| Astronautentyp | Staatliche Agentur | 
| Wikipedia | https://en.wikipedia.org/wiki/Jessica_Wittner | 
Jessica Wittner is a US Navy commander from California with a distinguished career serving on active duty as a naval aviator and test pilot. She holds a Bachelor of Science in aerospace engineering from the University of Arizona, and a Master of Science in aerospace engineering from the U.S. Naval Postgraduate School. Wittner was commissioned as a naval officer through an enlisted-to-officer program and has served operationally flying F/A-18 fighter jets with Strike Fighter Squadron 34 in Virginia Beach, Virginia, and Strike Fighter Squadron 151 in Lemoore, California. A graduate of U.S. Naval Test Pilot School, she also worked as a test pilot and project officer with Air Test and Evaluation Squadron 31 in China Lake, California. Exact date of birth unknown.