Edward Gibson

Edward George "Ed" Gibson (born November 8, 1936) is a former NASA astronaut, pilot, engineer, and physicist.
Gibson was selected as part of NASA Astronaut Group 4, the first group of scientist-astronauts. He was on the support crew of Apollo 12, the second Moon landing mission. He worked on the development of the Skylab space station. 
In 1973–74, Gibson made his only flight into space as science pilot aboard Skylab 4, the third and final crewed flight to Skylab. He, along with Commander Gerald Carr and Pilot William Pogue, spent just over 84 days in space.
Gibson resigned from NASA in December 1974, but returned in 1977 to preside over the selection of scientist-astronaut candidates. Gibson retired from NASA for the last time in October, 1982.