Chinese astronauts Cai Xuzhe and Song Lingdong conducted a spacewalk outside the Tiangong Space Station. Their tasks includes ...

With its powerful motor, wide app compatibility and elegant design, the Urevo SpaceWalk E4W walking pad punches way above its ...

NASA astronaut Nichole Ayers photographed a rare atmospheric phenomenon over the US and Mexico known as a "sprite" that's ...

Jared Isaacman is a high-school-dropout-turned-billionaire who was once nominated to lead NASA. Now he's been dragged into ...

Billionaire Jared Isaacman and SpaceX engineer Sarah Gillis completed the first privately funded spacewalk Thursday — a critical aspect of a risky, somewhat troubled mission designed to test new ...

It was the second spacewalk in a row to be called off because of spacesuit issues.

The SpaceX Polaris Dawn crew of four civilian astronauts successfully completed the first-ever commercial spacewalk.

A tech billionaire has performed the first private spacewalk hundreds of miles above Earth. It was a high-risk endeavor reserved for professional astronauts — until now.

The SpaceX Polaris Dawn mission already reached record altitudes. The entire spacecraft was exposed to the vacuum of space and two citizen astronauts completed spacewalks.

Conducting a spacewalk like this is a “risky adventure,” acknowledges Bill Gerstenmaier, SpaceX’s vice president of build and flight reliability, who previously headed NASA’s human ...

The Polaris Dawn astronauts are now the first commercial spacefarers to ever complete a spacewalk. The maneuver took place early Thursday.