Apollo 10 CDDT - Astronaut John W. Young (foreground) undergoes
spacesuit integrity (leak) checks while technicians finish suiting
Astronaut Eugene A. Cernan (in background) for a Countdown
Demonstration Test at the Kennedy Space Center in preparation for the
scheduled Apollo 10 lunar orbit mission. Young is the command module
pilot; and Cernan is the lunar module pilot. The other crewman is
Astronaut Thomas P. Stafford, commander.