Buzz Aldrin was an astronaut.
Apollo 11 was the spaceflight that landed the first two humans on the Moon . Apollo 11 was launched by a Saturn V rocket from Kennedy Space Center in Merritt Island , Florida , on July 16 , and was the fifth manned mission of NASA 's Apollo program . Buzz Aldrin ( born Edwin Eugene Aldrin Jr. , January 20 , 1930 ) is an American engineer and former astronaut . As the Lunar Module Pilot on Apollo 11 , he was one of the first two humans to land on the Moon , and the second person to walk on it .