Extravehicular activity

Astronaut Ed White makes the first American spacewalk during Gemini 4 (June 1965)

Extravehicular activity (EVA) is when an astronaut or cosmonaut gets out of a spacecraft in outer space, then gets back in. "Extravehicular activity" usually refers to a spacewalk outside a spacecraft orbiting the Earth, but can also refer to a moonwalk on the surface of the Moon. Three Apollo astronauts made spacewalks between the Earth and the Moon while their spacecraft were returning to Earth.

Astronauts from Russia, the United States and China have done EVAs.


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