On May 18, 1969, the crew of Apollo 10 lifted off on the second mission to orbit the moon. Here’s a look at images of the crew and the mission from the archives at NASA.

The prime crew of the Apollo 10 lunar orbit mission sits for photograph while at the Kennedy Space Center for preflight training. From left: lunar module pilot Eugene A. Cernan, commander Thomas P. Stafford, and command module pilot John W. Young.Lunar Module Pilot Eugene Cernan was a Navy pilot before joining NASA as part of Astronaut Group 3 in 1963. He flew as pilot of Gemini 9 in 1966, and later flew as commander of Apollo 17, where he became the last Apollo astronaut to walk on the moon. Cernan died in 2017.Commander Thomas P. Stafford was an Air Force pilot and test pilot before joining NASA as part of Astronaut Group 2 in 1962. He earlier flew as pilot of Gemini 6 in 1965 and command pilot of Gemini 9 in 1966 (with pilot Eugene Cernan).Command Module Pilot John W. Young was a Navy pilot and test pilot before joining NASA as part of Astronaut Group 2 in 1962. He first flew in space as pilot on Gemini 3 in 1965 and command pilot on Gemini 10 in 1966. Following the Apollo 10 mission flew as commander of Apollo 16 in 1972, where he walked on the moon. He flew as commander of the first orbital test flight of the Space Shuttle in 1981, and on a second shuttle mission in 1983. Young died in 2018.

NASA