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

GSA said it will only consider protests challenging the size of apparent winners at this time and will refer them to the Small Business Administration.

using a giant swimming pool known as the “Neutral Buoyancy Laboratory” to simulate spacewalk conditions. But now Polaris Dawn is going all the way back to 1965, depressurizing the entire ...

SpaceX's Polaris Dawn mission attempted its first-ever commercial spacewalk early Thursday morning. Four people donning new spacesuits opened their Crew Dragon spaceship to the vacuum of space. The ...

Sarah Gillis isn't what you might consider a career astronaut. Yet, in just a few hours the 30-year-old SpaceX engineer will join pilot and "daredevil billionaire" Jared Isaacman on a history ...

SpaceX's Polaris Dawn mission is about to attempt the first-ever commercial spacewalk. Four people plan to don new spacesuits and open their Crew Dragon spaceship to the vacuum of space. You can watch ...

Spacewalk Recap: Scroll down to read updates from the September 12 SpaceX Polaris Dawn spacewalk ... difference once suited and exposed to the vacuum of space puts them at risk for decompression ...

That’s because the Crew Dragon does not have a pressurized airlock, so the entire capsule was depressurized and exposed to vacuum conditions. Overall, the Polaris Dawn mission is designed to ...

A member of the Polaris Dawn flight crew performed the first ... time four astronauts have been simultaneously exposed to the vacuum of space. Isaacman and Gills were the only two to pop in ...

Read more about Polaris Dawn’s historic milestone here ... SpaceX knew that once the Crew Dragon capsule was exposed to the vacuum of space, components inside the vehicle could then vent ...