Only 12 people have walked on the moon, all American astronauts. Here they are:

* Neil Armstrong (Apollo 11)

* Buzz Aldrin (Apollo 11)

* Pete Conrad (Apollo 12)

* Alan Bean (Apollo 12)

* Alan Shepard (Apollo 14)

* Edgar Mitchell (Apollo 14)

* David Scott (Apollo 15)

* James Irwin (Apollo 15)

* John Young (Apollo 16)

* Charles Duke (Apollo 16)

* Eugene Cernan (Apollo 17)

* Harrison Schmitt (Apollo 17)

Many other astronauts have flown to the moon and orbited it, but these twelve were the only ones to set foot on its surface.