Neil Armstrong Becomes First Human to Walk on Moon

Summary

Following the successful Apollo 8 and 10 missions that tested lunar orbit and procedures, NASA launched Apollo 11 on July 16, 1969, carrying astronauts Neil Armstrong, Buzz Aldrin, and Michael Collins toward the Moon as the culmination of the decade-long effort to fulfill President Kennedy's goal. After a three-day journey and successful lunar module descent, the Eagle landed in the Sea of Tranquility on July 20. At 02:56 UTC on July 21, 1969, Armstrong descended the ladder and became the first human to set foot on the lunar surface, followed shortly by Aldrin, while Collins orbited above in the command module. The astronauts conducted experiments, collected samples, and planted an American flag during their approximately two-and-a-half-hour extravehicular activity before returning to the module. The mission concluded with a safe splashdown in the Pacific Ocean on July 24, returning 21.5 kilograms of lunar material to Earth.