Astronaut Neil Armstrong turns towards the lunar module soon after he became the first man to set foot on the moon in July, 1969.
This labeled image from NASA's Lunar Reconnaissance Orbiter shows the Apollo 11 lunar module at the center, with a shadow extending to the right.
Edwin "Buzz" Aldrin Jr stands on the moon, near the Lunar Module "Eagle".
A photo of astronaut Buzz Aldrin Jr, lunar module pilot, walking on the surface of the moon during the Apollo 11 extravehicular activity.
Astronaut Neil Armstrong inside the Apollo 11 Lunar Module in 1969.
With a half-Earth in the background, the Lunar Module ascent stage with Moon-walking Astronauts Neil Armstrong and Edwin Aldrin Jr approaches for a rendezvous with the Apollo Command Module manned by Michael Collins.
Astronaut Charles M Duke Jr, Lunar Module pilot of the Apollo 16 mission, collects lunar samples at Station No.
Astronaut Neil Armstrong smiles in the lunar module after his historic moonwalk.
Astronaut Edwin E Aldrin Jr, lunar module pilot, is photographed walking near the lunar module during the Apollo 11 extravehicular activity.
A key page from the Apollo 13 lunar module checklist shows calculations more.
He was a member of the Grumman team that designed the Apollo lunar module that carried Neil Armstrong and Buzz Aldrin to the surface of the moon on July 20, 1969.
The preparation for the moon landing included learning how to fly the ungainly lunar module, which would descend vertically to the moon 's surface.
30 pm Houston time on December 13, 1972, the commander of Apollo 17, Gene Cernan, took one final look across Mare Serenitatis, climbed into the lunar module and closed the hatch.
During the Apollo program, geologists' knowledge of the moon's surface helped engineers design the rovers, as well as the landing pads of the lunar module to guarantee a soft landing.
A view of the Earth appears over the Lunar horizon as the Apollo 11 Command Module.