Nasa astronauts work on robotic arm outside International Space Station
The first spacewalk at the International Space Station this year
A pair of Nasa astronauts were filmed as they made a spacewalk outside the International Space Station (ISS) to work on a robotic arm.
Astronauts Mark Vande Hei and Scott Tingle were tasked with swapping the hands on the Canadarm2 because the old ones had suffered from wear and tear.
The grappling devices which are used to latch on to incoming cargo spacecraft.
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