(01 of18)
Open Image Modal376713 04: (FILE PHOTO) Astronaut Edwin E. Aldrin, Jr., lunar module pilot, descends the steps of the Lunar Module ladder July 20, 1969 as he prepares to walk on the Moon. This photograph was taken by Apollo 11 commander astronaut Neil A. Armstrong with a 70mm lunar surface camera during the Apollo 11 extravehicular activity. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(02 of18)
Open Image ModalAstronaut Edwin E. Aldrin Jr. Poses For A Photograph Beside The Deployed Flag Of The United States. The Lunar Module Is On The Left. Man\'s First Landing On The Moon Occurred Today At 4:17 P.M. July 20, 1969 As Lunar Module \'Eagle\' Touched Down Gently On The Sea Of Tranquility On The East Side Of The Moon. The Lm (Lunar Module) Landed On The Moon On July 20, 1969 And Returned To The Command Module On July 21. The Command Module Left Lunar Orbit On July 22 And Returned To Earth On July 24, 1969. Apollo 11 Splashed Down In The Pacific Ocean On 24 July 1969 At 12:50:35 P.M. Edt After A Mission Elapsed Time Of 195 Hrs, 18 Mins, 35 Secs. (Photo By Nasa/Getty Images) (credit:NASA via Getty Images)
(03 of18)
Open Image Modal376713 17: (FILE PHOTO) Astronaut Edwin E. Aldrin Jr., Lunar Module Pilot, stands near a scientific experiment on the lunar surface. Man\'s first landing on the Moon occurred July 20, 1969 as Lunar Module \'Eagle\' touched down gently on the Sea of Tranquility on the east side of the Moon. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(04 of18)
Open Image Modal30Th Anniversary Of Apollo 11 Landing On The Moon (9 Of 20): Astronaut Edwin E. Aldrin Jr., Lunar Module Pilot, Is Photographed Walking Near The Lunar Module During The Apollo 11 Extravehicular Activity. Man\'s First Landing On The Moon Occurred Today At 4:17 P.M. July 20, 1969 As Lunar Module \'Eagle\' Touched Down Gently On The Sea Of Tranquility On The East Side Of The Moon. The Lm (Lunar Module) Landed On The Moon On July 20, 1969 And Returned To The Command Module On July 21. The Command Module Left Lunar Orbit On July 22 And Returned To Earth On July 24, 1969. Apollo 11 Splashed Down In The Pacific Ocean On 24 July 1969 At 12:50:35 P.M. Edt After A Mission Elapsed Time Of 195 Hrs, 18 Mins, 35 Secs. (Photo By Nasa/Getty Images) (credit:NASA via Getty Images)
(05 of18)
Open Image Modal376713 19: (FILE PHOTO) Astronaut Edwin E. Aldrin Jr., Lunar Module Pilot, removes scientific experiment packages from a stowage area in the Lunar Module\'s descent stage. Man\'s first landing on the Moon occurred July 20, 1969 as Lunar Module \'Eagle\' touched down gently on the Sea of Tranquility on the east side of the Moon. The LM (lunar module) landed on the moon on July 20, 1969 and returned to the command module on July 21, 1969. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(06 of18)
Open Image Modal376713 20: (FILE PHOTO) The deployment of scientific experiments by Astronaut Edwin Aldrin Jr. is photographed by Astronaut Neil Armstrong. Man\'s first landing on the Moon occurred July 20, 1969 as Lunar Module \'Eagle\' touched down gently on the Sea of Tranquility on the east side of the Moon. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(07 of18)
Open Image Modal376713 01: (FILE PHOTO) An Apollo 11 astronaut\'s footprint in the lunar soil, photographed by a 70 mm lunar surface camera during the Apollo 11 lunar surface extravehicular activity. Neil Armstrong steped into history July 20, 1969 by leaving the first human footprint on the surface of the moon. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(08 of18)
Open Image Modal376713 11: (FILE PHOTO) A view of the Earth appears over the Lunar horizon as the Apollo 11 Command Module comes into view of the Moon before Astronatus Neil Armstrong and Edwin Aldrin Jr. leave in the Lunar Module, Eagle, to become the first men to walk on the Moon\'s surface. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(09 of18)
Open Image Modal376713 18: (FILE PHOTO) 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. The Apollo 11 liftoff from the Moon came early, ending a 22-hour stay on the Moon by Armstrong and Aldrin. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(10 of18)
Open Image Modal376713 05: (FILE PHOTO) Astronaut Edwin E. Aldrin Jr. walks near the Lunar Module during the Apollo 11 extravehicular activity July 20, 1969 on the Moon. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(11 of18)
Open Image Modal376713 16: (FILE PHOTO) One of the few photographs of Neil Armstrong on the moon shows him working on his space craft on the lunar surface. The 30th anniversary of the Apollo 11 Moon landing mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(12 of18)
Open Image Modal30Th Anniversary Of Apollo 11 Landing On The Moon (19 Of 20): Astronaut Neil Armstrong Inside The Lunar Module. Man\'s First Landing On The Moon Occurred At 4: 17 P.M. On July 20, 1969 As Lunar Module \'Eagle\' Touched Down Gently On The Sea Of Tranquility On The East Side Of The Moon. The Lm (Lunar Module) Landed On The Moon On July 20, 1969 And Returned To The Command Module On July 21. The Command Module Left Lunar Orbit On July 22 And Returned To Earth On July 24, 1969. Apollo 11 Splashed Down In The Pacific Ocean On July 24 1969 At 12: 50: 35 P.M. Edt After A Mission Elapsed Time Of 195 Hrs, 18 Mins, 35 Secs. (Photo By Nasa/Getty Images) (credit:NASA via Getty Images)
(13 of18)
Open Image Modal376713 13: (FILE PHOTO) U.S. Navy pararescueman Lt. Clancey Hatleberg disinfects Apollo 11 Astronauts Neil A. Armstrong, Michael Collins and Edwin E. Aldrin Jr. after getting into the life raft during recovery operations today at the completion of their successful lunar landing mission. The space pilots donned biological isolation garments in their spacecraft. The 30th anniversary of the Apollo 11 Moon landing mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(14 of18)
Open Image Modal376713 06: (FILE PHOTO) New York City welcomes the Apollo 11 crew in a showering of ticker tape down Broadway and Park Avenue August 13, 1969 in a parade termed as the largest in the city\'s history. Pictured in the lead car, from the right, are astronauts Neil A. Armstrong, commander; Michael Collins, command module pilot; and Edwin E. Aldrin Jr., lunar module pilot. The three astronauts teamed for the first manned lunar landing on July 20, 1969. The 30th anniversary of the Apollo 11 Moon mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(15 of18)
Open Image Modal376713 23: (FILE PHOTO) A pre-launch twilight photo of the The Apollo 11 Saturn V space vehicle. It lifted off July 16, 1969 from Kennedy Space Center in Florida. The space craft was injected into lunar orbit July 19, 1969 with Astronauts Neil A. Armstrong, Michael Collins and Edwin E. Aldrin Jr. on board. The 30th anniversary of the Apollo 11 Moon landing mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(16 of18)
Open Image Modal376713 21: (FILE PHOTO) The Apollo 11 Saturn V space vehicle lifts off July 16, 1969 from Kennedy Space Center\'s Launch Complex in Florida. The space craft was injected into lunar orbit on July 19, 1969 with Astronauts Neil A. Armstrong, Michael Collins and Edwin E. Aldrin Jr. on board. The 30th anniversary of the Apollo 11 Moon landing mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(17 of18)
Open Image Modal376713 15: (FILE PHOTO) The Apollo 11 Saturn V space vehicle lifts off July 16, 1969 from Kennedy Space Center\'s Launch Complex in Florida. The space craft was injected into lunar orbit on July 19 with Astronauts Neil A. Armstrong, Michael Collins and Edwin E. Aldrin Jr. on board. The 30th anniversary of the Apollo 11 Moon landing mission is celebrated July 20, 1999. (Photo by NASA/Newsmakers) (credit:NASA via Getty Images)
(18 of18)
Open Image ModalThis May 1969 file photo shows the astronaut crew of the Apollo 11 lunar landing mission. Left to right, are Neil A. Armstrong, commander; Michael Collins, command module pilot; and Edwin E. Aldrin Jr., lunar module. AFP PHOTO / NASA (Photo credit should read /AFP/Getty Images) (credit:AFP via Getty Images)