Designated as the Air Force Flight Test Center (AFFTC), Edwards is home to the 412th Test Wing, the United States Air Force Test Pilot School, and NASA's Dryden Flight Research Center. It is operated and maintained by the 95th Air Base Wing as a part of the Air Force Materiel Command. Almost every United States military aircraft since the 1950s has been at least partially tested at Edwards, and it has been the site of many aviation breakthroughs.
Notable occurrences at Edwards include Chuck Yeager's flight that broke the sound barrier in the Bell X-1, test flights of the North American X-15, the first landings of the Space Shuttle, and the 1986 around-the-world flight of the Rutan Voyager.
Visit the Edwards Air Force Base Website for more info.