The first astronaut to walk on the Moon was Neil Armstrong during the Apollo 11 mission in 1969. Armstrong’s iconic words, "That's one small step for [a] man, one giant leap for mankind," marked a significant milestone in human exploration and space travel. His historical achievement, alongside Buzz Aldrin, not only fulfilled a national goal but also inspired generations to pursue careers in science and engineering. Armstrong's legacy continues to influence the ongoing quest for space exploration and discovery.