<Li> Eugene A. Cernan--Second - seat veteran on Gemini 9A, flew as Lunar Module Pilot on Apollo 10, and commanded the final lunar landing mission Apollo 17 . </Li> <Li> Michael Collins--Second - seat veteran on Gemini 10, flew as Command Module Pilot on Apollo 11 . </Li> <Li> Edwin E. "Buzz" Aldrin Jr .--Second - seat veteran on Gemini 12, flew as Lunar Module Pilot on Apollo 11, the first Moon landing . </Li> <Li> Richard F. Gordon Jr .--Second - seat veteran on Gemini 11, flew as Command Module Pilot on Apollo 12 . Gordon was selected to command the Apollo 18 lunar landing, which was later cancelled . </Li>

Who are the 12 astronauts who walked on the moon