Forty-four years ago on July 20, 1969, astronauts Neil Armstrong and Edwin "Buzz" Aldrin landed on the moon's surface, successfully completing humankind's first manned lunar landing as part of the Apollo 11 spaceflight.
Eight years prior, on May 25, 1961, President John F. Kennedy had challenged a joint special session of Congress: "I believe this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to Earth." In response, NASA scientists persevered through failed missions and various setbacks to achieve the far-flung objective during the Apollo 11 mission. Armstrong himself recently remarked on the uncertainty of the mission, saying he believed the lunar module only had a 50% chance of completing its objective and landing on the moon's surface.
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To commemorate the event that will remain forever paramount in the history of space exploration, we've compiled a slideshow of vintage NASA images of the Apollo 11 mission, including the Saturn V rocket's launch, famous spectators watching liftoff in awe and the lunar module's separation from the command module, once in lunar orbit.
Some background on the momentous event: The 36-story Saturn V rocket carrying Armstrong, Aldrin and Michael Collins launched the morning of July 16 from Cape Canaveral, Fla., beginning its three-day, quarter-million-mile journey to the moon. On July 19, once in orbit, the lunar module, which was slated to carry Aldrin and Armstrong to the lunar surface, separated from the command module, which would continue in orbit, carrying astronaut Michael Collins alone until it would be time to return to earth.
Upon landing successfully on the moon's surface, Armstrong radioed his famous message to mission control in Houston: "Tranquillity Base here," he said. "The Eagle has landed." After being joined on the ground by Aldrin, the two spent approximately two and a half hours on the surface, collecting soil and rock samples, and taking photographs.
In addition to the U.S. flag and various other objects, the astronauts left behind a plaque on the moon's surface that read: "Here men from the planet Earth first set foot on the moon July 1969 A.D. We came in peace for all mankind." They returned successfully four days later, splashing down in the Pacific Ocean on the afternoon of July 24, completing the Apollo 11 spaceflight.
Buzz Aldrin tweeted about the achievement on Saturday, commemorating both the anniversary and his late colleague, Armstrong, who died last year at age 82.
44 years ago today Neil took this photo of me at Tranquility Base on the moon. We all miss you Neil. http://t.co/d6PD7qpjK6
Buzz Aldrin (@TheRealBuzz) July 20, 2013
Al Kuhn, a propulsion engineer who worked on designing the Apollo 11 lunar module, also reflected on the magnitude of the moment. He told the San Jose Mercury News: "[Apollo]'s contribution, 500 years from now, may be the way the 20th century is remembered. We did it. Against terrific odds. The first step away from our little planet."
Image: NASA/Apollo 11 via NASA Goddard Space Flight Center
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