EXTRAVEHICULARACTIVITY

Extra-vehicular activity

Extra-vehicular activity is any activity done by an astronaut or cosmonaut outside of a spacecraft beyond the Earth's appreciable atmosphere. The term most commonly applies to a spacewalk made outside a craft orbiting Earth, but also has applied to lunar surface exploration performed by six pairs of American astronauts in the Apollo program from 1969 to 1972. On each of the last three of these missions, astronauts also performed deep-space EVAs on the return to Earth, to retrieve film canisters from the outside of the spacecraft. Astronauts also used EVA in 1973 to repair launch damage to Skylab, the United States' first space station.

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extravehicular activity

Noun

 (abbreviated as EVA)
  1. any activity done by an astronaut outside of a spacecraft etc; a spacewalk or moonwalk


The above text is a snippet from Wiktionary: extravehicular activity
and as such is available under the Creative Commons Attribution/Share-Alike License.

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