Portrait of Gerald Carr Courtesy of NASA

Gerald Carr was an American astronaut who was born on August 22, 1932 in Colorado. Before he became an astronaut, he served as a Marine pilot. He has logged over 6100 hours.

Carr became an astronaut in 1966. He spent over 84 days in space on only one space flight.

In 1973, Carr commanded Skylab 4. Skylab 4 is America's longest space flight, spending over 84 days in orbit around the Earth. The Skylab mission was to conduct experiments concerning Earth, biology, and the sun. Carr helped perform many of these experiments and also spent over 16 hours on spacewalks.

The Skylab 4 mission is also famous for being the first mission where the space crew to go "on strike." The crew complained of overwork, and thus took some time off in space.