Which specific designation is used to describe someone performing Extravehicular Activity (EVA)?
Answer
Spacewalker
Spacewalker is a highly specific term denoting an astronaut or cosmonaut engaged in Extravehicular Activity (EVA). The text explicitly states that this term describes a specific *task* undertaken by a space traveller, rather than serving as an overarching job title or permanent designation for all spaceflight personnel. While everyone performing an EVA is likely an astronaut or cosmonaut, the term Spacewalker captures the precise action of working outside the confines of the spacecraft in the vacuum of space.
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