noun
- astronauts who perform extravehicular activities outside a spacecraft while in space
Examples
- The spacewalkers spent six hours repairing the solar panels on the space station.
- Two experienced spacewalkers will conduct the mission outside the shuttle.
- The spacewalkers used special tools to install the new equipment.
- Mission control monitored the spacewalkers throughout their work outside the spacecraft.
- The spacewalkers were tethered to the station for safety during their EVA.
- Training for spacewalkers includes underwater simulations to practice weightless conditions.