noun
- an astronaut who performs activities outside a spacecraft while in space
Examples
- The spacewalker spent three hours repairing the satellite.
- NASA trained the spacewalker for months before the mission.
- The spacewalker floated gracefully outside the space station.
- Two spacewalkers worked together to install the new equipment.
- The spacewalker’s suit provided protection from the vacuum of space.
- Mission control monitored the spacewalker’s vital signs throughout the EVA.