Astronautics Vocabulary

The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.

Definition of extravehicular activity (EVA)

Translation: activité extravéhiculaire

Definition: Action performed by an astronaut or cosmonaut outside a vehicle in space; a spacewalk.

Other Definition: None

Synonym: spacewalk