Apollo 10 astronaut Eugene Cernan, 1969.
© National Aeronautics & Space Administration / Science & Society
Crewed by Cernan, Thomas Stafford and John Young, Apollo 10 succesfully completed a lunar orbital mision in May 1969 as the dres rehearsal for the actual Apollo 11 Moon landing, which took place two months later. Cernan was the Lunar Module pilot on Apollo 10. He also flew on the Gemini 9 mision and on Apollo 17, on which he became the 11th man to walk on the Moon.