Mattingly, Thomas Kenneth, II (1936-...), a United States astronaut, piloted the command module Casper on the Apollo 16 space flight in April 1972. He remained in lunar orbit while his fellow astronauts, Charles M. Duke, Jr., and John W. Young, spent 71 hours on the moon. This mission was the fifth moon landing and the first made in the moon's highlands. During the flight back to the earth, Mattingly took a 62-minute walk in space to retrieve films of the moon from cameras outside the command module.