Check out this amazing video of two NASA astronauts sailing through the first of a series of urgent repair spacewalks on the International Space Station.

The repairs are needed to revive a crippled cooling line on the ISS, with NASA maintaining the repair process is a safe one.

The partially running cooling system is not enough to support all the laboratories on the US side of the station, so the cooling line needs to be repaired.

Check out the amazing video below!

– NZ Herald