Passage: In July 1969, Armstrong and Apollo 11 Lunar Module pilot Buzz Aldrin became the first people to land on the Moon, and spent two and a half hours outside the spacecraft while Michael Collins remained in lunar orbit in the command and service module. When Armstrong stepped onto the lunar surface, he famously said: "That's one small step for [a] man, one giant leap for mankind." Along with Collins and Aldrin, Armstrong was awarded the Presidential Medal of Freedom by President Richard Nixon. President Jimmy Carter presented Armstrong with the Congressional Space Medal of Honor in 1978, and Armstrong and his former crewmates received a Congressional Gold Medal in 2009.

Question: Who was the famous astronaut that said one giant leap
Armstrong