Seven MOL astronauts transferred to NASA at the end of the mission, several of whom flew multiple shuttle missions. Richard Truly, one of the first MOL recruits, flew the second prototype Enterprise shuttle mission, which didn’t reach space but tested out the landing capabilities of the craft prior to its first real space launch. He later flew aboard STS-2 and STS-8 in the Columbia space shuttle and eventually served as NASA administrator under President George H.W. Bush. Robert Crippin, part of the second group of MOL astronauts, flew the first shuttle mission in 1981. Other MOL-turned-Shuttle astronauts were Karol J. Bobko, Charles Gordon Fullerton, Henry Hartsfield, Robert Overmyer, and Donald Peterson. Albert Crews and James Abrahamson joined NASA in other capacities.