Lieutenant Colonel U.S. Army, flight controller for the International Space Station at NASA’s Johnson Space Center, as part of U.S. Army NASA Detachment; Bachelor of Science in Physics from the St. John's University, 1989; Master of Science in Applied Physics from the Stanford University, 1999; Hobbies: any outdoor activities that involve self powered transit or exploring, such as bicycling, backpacking, canoeing, diving, and windsurfing.