Pamela Anne Melroy is a retired United States Air Force officer and a former NASA astronaut. She served as pilot on Space Shuttle missions STS-92 and STS-112 and commanded mission STS-120 before leaving the agency in August 2009. After serving as Deputy Program Manager, Space Exploration Initiatives with Lockheed Martin, Melroy joined the Federal Aviation Administration in 2011, where she was a senior technical advisor and director of field operations for the FAA's Office of Commercial Space Transportation. In 2013, she left the FAA and joined DARPA as Deputy Director of the Tactical Technology Office. She left the agency in February, 2017.