Astronaut Neil Armstrong took the photo above 43 years ago to the day on July 20, 1969. It was his first snap after setting foot on the surface of the moon. Soon after, Buzz Aldrin would also climb down from the Apollo 11 lunar module, called Eagle, and the pair would become the first humans to walk on a celestial body other than Earth.
Below are more images taken by Neil Armstrong and Buzz Aldrin during their stay on the moon (unless otherwise noted). Astronaut Michael Collins, the third member of the Apollo 11 crew, didn't get to walk on the moon's surface — as the Command Module Pilot, he orbited overhead in the Apollo 11 Command/Service Module, called Columbia. Fun fact: it was Collins who designed the mission patch that the Apollo 11 crew wore.