Training NASA History Office and the NASA JSC Media Services Center The Apollo 11 crew relaxes during training on May 24, 1969.

Press Conference NASA/AFP/Getty The space crew of the Apollo 11 mission sits in front of cameras answering journalists' questions during the night before the liftoff at Kennedy Space Center, Florida, on July 16, 1969.

Launch Day Breakfast NASA The Apollo 11 crew and Donald K. "Deke" Slayton at the traditional launch day steak and eggs breakfast.

Suiting Up NASA Apollo 11 Commander Neil Armstrong prepares to don his helmet on launch day.

Suiting Up NASA/Scanned by Ed Hengeveld Technician Joe Schmitt suiting Apollo 11 Command Module Pilot Michael Collins for launch.

Ready To Launch NASA Armstrong leads the crew from the Manned Spacecraft Operations Building to the transfer van.

Before Liftoff NASA History Office and the NASA JSC Media Services Center. Apollo 11 Saturn V on launch pad 39A.

Blastoff! NASA History Office and the NASA JSC Media Services Center Apollo 11 lifts off, from launch tower camera on July 16, 1969.

Blastoff! NASA History Office and the NASA JSC Media Services Center Moonbound Apollo 11 clears the launch tower.

Spiro Agnew And LBJ NASA/AFP/Getty US Vice-President Spiro Agnew and former US President Lyndon B. Johnson are seen in a crowd watching the liftoff of the Apollo 11 mission at Kennedy Space Center, Florida, on July 16, 1969.

In Flight NASA History Office and the NASA JSC Media Services Center Lunar module pilot Edwin "Buzz" Aldrin during Apollo 11 mission.

Lunar Orbit NASA History Office and the NASA JSC Media Services Center Earthrise viewed from lunar orbit prior to landing.

Lunar Orbit NASA History Office and the NASA JSC Media Services Center Crater 308 viewed from orbit.

Lunar Module Descent NASA History Office and the NASA JSC Media Services Center Flight controllers during lunar module descent.

Exiting Lunar Module NASA History Office and the NASA JSC Media Services Center Buzz Aldrin exits the lunar module.

Exiting Lunar Module NASA History Office and the NASA JSC Media Services Center Aldrin on the lunar module footpad.

Lunar Module Plaque NASA History Office and the NASA JSC Media Services Center "Here men from the planet Earth first set foot upon the moon July 1969, A.D. We came in peace for all mankind."

On The Moon NASA History Office and the NASA JSC Media Services Center Aldrin stands beside the lunar module strut.

On The Moon NASA History Office and the NASA JSC Media Services Center Aldrin poses for portrait.

Raising The Flag NASA Armstrong and Aldrin raise the U.S. flag on the lunar surface.

On The Moon NASA Aldrin poses next to the U.S. flag on the moon.

Footprint NASA History Office and the NASA JSC Media Services Center Aldrin's boot and footprint in lunar soil.

Footprint NASA Aldrin photographed this footprint in the lunar soil as part of an experiment to study the nature of lunar dust and the effects of pressure on the surface.

On The Moon NASA History Office and the NASA JSC Media Services Center Aldrin carries experiments for deployment.

On The Moon NASA History Office and the NASA JSC Media Services Center Aldrin assembles seismic experiment

On The Moon NASA History Office and the NASA JSC Media Services Center Neil Armstrong works at the lunar module.

Taking A Photo NASA History Office and the NASA JSC Media Services Center Armstrong photo of lunar module from a distance.

After Moonwalk NASA Armstrong in the lunar module after his historic moonwalk.

After Moonwalk NASA Aldrin in lunar module after moonwalk.

Flag From Lunar Module NASA History Office and the NASA JSC Media Services Center Flag and TV camera viewed from the lunar module window.

In-Flight Demonstration NASA Aldrin shows his Earth-bound television audience how to make a sandwich in space during his journey home from the moon. When this picture was made, Apollo 11 was approximately 137,000 nautical miles from Earth.

Earth NASA History Office and the NASA JSC Media Services Center Closeup of Earth during return trip.

Splashdown NASA History Office and the NASA JSC Media Services Center Mission Control celebrates after splashdown, July 24, 1969.

Return Home NASA The Apollo 11 crew await pickup by a helicopter. The Apollo 11 Command Module Columbia splashed down at 11:49 a.m. CDT, July 24, 1969, about 812 nautical miles southwest of Hawaii.

In Quarantine NASA History Office and the NASA JSC Media Services Center Apollo 11 astronauts, still in their quarantine van, are greeted by their wives upon arrival at Ellington Air Force Base on July 27, 1969.

In Quarantine NASA/Scanned by Jay Hanks The Apollo 11 crew relaxes in the quarantine van.