National Aeronautics and Space Administration (NASA) is a U.S. government agency that researches, develops, conducts, and tests civilian and military aerospace systems, satellites, and space probes for space exploration, research, technology, and peaceful purposes. NASA’s projects and missions include moon landings, the orbiting Skylab space station, the Voyager 2 mission, Chandra X-ray Observatory, and the manned space shuttle Columbia of 1981. National Aeronautics and Space Administration was established in 1958 and is headquartered in Washington, District Of Columbia. It has additional centers and field facilities in Moffett Field, Pasadena, and Edwards, California; Cleveland, Ohio; Greenbelt, Maryland; Fairmont, West Virginia; Huntsville, Alabama; and Wallops Island, Virginia.