The first moonwalk

The first extravehicular activity on the Moon was carried out by Neil Armstrong and Buzz Aldrin on 21 July 1969 in the environment of the Apollo 11 mission.

Astronaut

An astronaut is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft.

The space

Outer space or empty space, also simply called space, refers to the relatively empty regions of the universe outside the atmospheres of celestial bodies.