Twelve American astronauts have walked on the moon since 1969. The Apollo 11 mission in July 1969 was the first time man landed on the moon. Although Neil Armstrong was the first man during this mission to step on the moon,Â Edwin Buzz Aldrin also walked on the moon along with Armstrong during the 21 hours and 36 minutes that they were on the moon.
There were more Apollo missions in which other astronauts walked on the moon. For example, on the Apollo 12 mission that took place in November 1969, there were two astronauts named Alan Bean and Pete Conrad who walked on the moon. The astronauts from the Apollo 13 mission were unable to land on the moon due to technical difficulties.
During the NASA missions Apollo 14 through Apollo 17, eight other astronauts walked on the moon. Their names are Alan Shepard, Edgar Mitchell, David Scott, James Irwin, John Young, Charles Duke, Eugene Cernan and Harrison Schmitt.