July 20, 1969
On July 20, 1969, American astronauts Neil Armstrong (1930-) and Edwin “Buzz” Aldrin (1930-) became the first humans to land on the moon. About six-and-a-half hours later, Armstrong became the first person to walk on the moon. As he set took his first step, Armstrong famously said, "That's one small step for man, one giant leap for mankind." The Apollo 11 mission occurred eight years after President John Kennedy (1917-63) announced a national goal of landing a man on the moon by the end of the 1960s. Apollo 17, the final manned moon mission, took place in 1972.
Apollo 11 Mission: July 16-July 24, 1969At 9:32 a.m. EDT on July 16, with the world watching, Apollo 11 took off from Kennedy Space Center with astronauts Neil Armstrong, Buzz Aldrin and Michael Collins (1930-) aboard. Armstrong, a 38-year-old civilian research pilot, was the commander of the mission.
After traveling 240,000 miles in 76 hours, Apollo 11 entered into a lunar orbit on July 19. The next day, at 1:46 p.m., the lunar module Eagle, manned by Armstrong and Aldrin, separated from the command module, where Collins remained. Two hours later, the Eagle began its descent to the lunar surface, and at 4:17 p.m. the craft touched down on the southwestern edge of the Sea of Tranquility. Armstrong immediately radioed to Mission Control in Houston, Texas, a now-famous message: "The Eagle has landed."
At 10:39 p.m., five hours ahead of the original schedule, Armstrong opened the hatch of the lunar module. As he made his way down the module's ladder, a television camera attached to the craft recorded his progress and beamed the signal back to Earth, where hundreds of millions watched in great anticipation. At 10:56 p.m., as Armstrong stepped off the ladder and planted his foot on the moon’s powdery surface, he spoke his famous quote, which he later contended was slightly garbled by his microphone and meant to be "that's one small step for a man, one giant leap for mankind."
Aldrin joined him on the moon's surface 19 minutes later, and together they took photographs of the terrain, planted a U.S. flag, ran a few simple scientific tests and spoke with President Richard Nixon (1913-94) via Houston. By 1:11 a.m. on July 21, both astronauts were back in the lunar module and the hatch was closed. The two men slept that night on the surface of the moon, and at 1:54 p.m. the Eagle began its ascent back to the command module. Among the items left on the surface of the moon was a plaque 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."
At 5:35 p.m., Armstrong and Aldrin successfully docked and rejoined Collins, and at 12:56 a.m. on July 22 Apollo 11 began its journey home, safely splashing down in the Pacific Ocean at 12:50 p.m. on July 24.
Apollo Program: Background
The American effort to send astronauts to the moon had its origins in an appeal President John Kennedy made to a special joint session of Congress on May 25, 1961: "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." At the time, the United States was still trailing the Soviet Union in space developments, and Cold War-era America welcomed Kennedy's bold proposal.
In 1966, after five years of work by an international team of scientists and engineers, the National Aeronautics and Space Administration (NASA) conducted the first unmanned Apollo mission, testing the structural integrity of the proposed launch vehicle and spacecraft combination. Then, on January 27, 1967, tragedy struck at Kennedy Space Center in Cape Canaveral, Florida, when a fire broke out during a manned launch-pad test of the Apollo spacecraft and Saturn rocket. Three astronauts were killed in the fire.