NASA has released incredible point-of-you footage taken by astronauts on spacewalks of the International Space Station. Expedition 42 Commander Barry Wilmore and flight engineer Terry Vertz recorded three spacewalks, known as extravehicular activities, on GoPro cameras outside the ISS on February 25th and March 1st. The spacewalks were in preparation for the arrival of multi-billion-pound commercial spacecraft, which NASA hope will be in operation by 2017. NASA recently signed a contract with commercial spaceflight company SpaceX and Boeing with the intention to produce craft capable of transporting astronauts to the ISS. The clip was recorded to give the future ISS workers an idea of what they can expect when they go into space to maintain the commercial spacecraft. In the footage, Vertz and Wilmore can be seen repairing the robotic arm of the space station and installing a new communication system for the future docking.