Editing Extravehicular activity (section)

===<span class="anchor" id="Apollo lunar EVA">Apollo missions</span>===
[[File:Aldrin Apollo 11 original.jpg|thumb|right|[[Buzz Aldrin]] walks on the Moon during the pioneering [[Apollo 11]] mission in 1969.]]

American astronauts [[Neil Armstrong]] and [[Buzz Aldrin]] performed the first EVA on the lunar surface on July 21, 1969 ([[UTC]]), after landing their [[Apollo 11]] [[Apollo Lunar Module|Lunar Module]] spacecraft. This first Moon walk, using self-contained [[portable life support system]]s, lasted 2 hours and 36 minutes. A total of fifteen Moon walks were performed among six Apollo crews, including [[Pete Conrad|Charles "Pete" Conrad]], [[Alan Bean]], [[Alan Shepard]], [[Edgar Mitchell]], [[David Scott]], [[James Irwin]], [[John Young (astronaut)|John Young]], [[Charles Duke]], [[Eugene Cernan]], and [[Harrison Schmitt|Harrison "Jack" Schmitt]]. Cernan was the last Apollo astronaut to step off the surface of the Moon.<ref name="portree"/>

[[File:Astronaut Charles Duke with a hammer on the lunar surface - pone.0006614.s003.ogv|thumb|[[Charles Duke]] with a hammer on the lunar surface]]

[[Apollo 15]] [[Apollo command and service module|command module]] pilot [[Al Worden]] made an EVA on August 5, 1971, on the return trip from the Moon, to retrieve a film and data recording canister from the service module. He was assisted by Lunar Module Pilot James Irwin standing up in the Command Module hatch. This procedure was repeated by [[Ken Mattingly]] and Charles Duke on [[Apollo 16]], and by [[Ronald Evans (astronaut)|Ronald Evans]] and Harrison Schmitt on [[Apollo 17]].<ref name="portree"/>