NASA has finished building its spacecraft bus to deploy the Nancy Grace Roman Space Telescope into orbit after the space ...

Live updates from SpaceX liftoff Tuesday from Kennedy Space Center Launch recap: Scroll down to review live updates from the ...

Splashdown northwest of Key West, Florida, will close out a mission highlighted by the first non-government civilian ...

After accomplishing a number of space industry firsts, including the first-ever private astronaut spacewalk, the Polaris Dawn ...

SpaceX passed 60 launches for the year from the Space Coast early Thursday with a Falcon 9 mission taking a set of five ...

Jared Isaacman, the billionaire leading the Polaris Dawn mission, and Sarah Gillis, a SpaceX engineer, exited and re-entered ...

The spacewalk marked another win for SpaceX at a time when its human-spaceflight rival Boeing Co. (BA) is smarting from NASA's decision to turn to SpaceX amid problems dogging the first crewed flight ...

The Polaris spacewalk looked a lot like the earliest NASA spacewalks during the Gemini missions in the late 1960s. Here are ...

The rocket, part of SpaceX’s Polaris Dawn mission, is a Dragon spacecraft carrying pilot Scott “Kidd” Poteet, mission specialists Sarah Gillis and medical officer Anna Menon, and mission commander and ...

After launching early on Tuesday, the billionaire Jared Isaacman and his crew traveled to altitudes not visited by any ...

Don Pettit is replacing astronaut Tracy Dyson, who plans to return to Earth on Sept. 23, after a six-month stay aboard the ...