Dictionary of Space Concepts

Short Definition:
EVA is an act of performing different activities outside your spaceship while in orbit. This could include repairing, attaching or other experiments.

Detailed Definition:
Performing an EVA can refer to activities such as spacewalks, where astronauts leave the spacecraft to work in the vacuum of space, as well as other tasks such as inspections or repairs on the exterior of the spacecraft. EVAs are a common part of space exploration and are conducted by astronauts in a variety of different settings, including the International Space Station and during lunar, or in the future, planetary missions.

Etymology:
EVA stands for Extravehicular Activity

Sample Sentence(s):
Astronauts on the ISS are preparing to perform an EVA.
Yesterday's EVA was completed successfully.

Translations:

French:
Sortie extravéhiculaire

German:
Außenbordeinsatz

Polish:
Spacer kosmiczny

Swedish:
Rymdpromenad

Links to Videos/Articles:
https://www.nasa.gov/content/extravehicular-activities/
https://en.wikipedia.org/wiki/Extravehicular_activity