Exiting the International Space Station however, brings heightened risk and activities are planned down to the minute.
In this clip, ESA astronaut Alexander Gerst and NASA astronaut Serena Auñón-Chancellor help NASA astronauts Feustel and Ricky Arnold prepare to step out into space for EVA 51.
This spacewalk occurred on 14th June, 2018 – during Alexander Gerst’s Horizons mission.