What its like to walk in space [Video]

Polaris Dawn, flying nearly 1400 kilometres above earth, already set the record of the highest altitude mission since the Apollo program more than half a century ago.

SpaceX/TNS

Early Thursday morning, two Polaris Dawn astronauts stepped into the vacuum of space. The Earth suspended below them, they used new SpaceX spacesuits for the first time.

It was the first commercial spacewalk ever, funded in part by billionaire Jared Isaacman. And it was a risky endeavour, one that tested a number of new technologies as humanity barrels toward a new age in space exploration.