Pam Melroy is a retired Air Force test pilot and former NASA astronaut and Space Shuttle commander. She was commissioned in the United States Air Force and served as a KC-10 copilot, aircraft commander, and instructor pilot. Melroy is a veteran of Operation Just Cause and Operation Desert Shield/Desert Storm, with over 200 combat and combat support hours. She went on to attend the Air Force Test Pilot School at Edwards Air Force Base, California. Upon her graduation, she was assigned to the C-17 Combined Test Force, where she served as a test pilot until her selection for the Astronaut Program. She has logged more than 6,000 hours flight time in more than 50 different aircraft. Selected as an astronaut candidate by NASA in December 1994, Melroy reported to the Johnson Space Center, Texas, in March 1995. She flew three missions in space: as Space Shuttle pilot during STS-92 in 2000 and STS-112 in 2002, and as Space Shuttle Commander during STS-120 in 2007. All three missions were assembly missions to build the International Space Station. She is one of only two women to command the Space Shuttle. While an astronaut, she held a variety of positions to include performing astronaut support duties for launch and landing and Capsule Communicator (CAPCOM) duties in mission control. Melroy served on the Columbia Reconstruction Team as the lead for the crew module and served as Deputy Project Manager for the Columbia Crew Survival Investigation Team. In her final position, she served as Branch Chief for the Orion branch of the Astronaut Office. She has logged more than 924 hours (more than 38 days) in space. Colonel Melroy retired from the Air Force in 2007, and left NASA in August 2009. After NASA, she served as Deputy Program manager for the Lockheed Martin Orion Space Exploration Initiatives program and as Director of Field Operations and acting Deputy Associate Administrator for Commercial Space Transportation at the Federal Aviation Administration. She went on to serve as Deputy Director, Tactical Technology Office at the Defense Advanced Research Projects Agency (DARPA). Pam Melroy now is Director, Space Technology and Policy at Nova Systems.