The crew spent five days in orbit on a mission that includes the first spacewalk by astronauts from the commercial sector.

Jared Isaacman is a 41-year-old entrepreneur. The man is the founder and CEO of the payment processing company “ Shift4 ...

Back in the day, a spacewalk was a spectacular and risky feat. Nowadays, in the age of the International Space Station and ...

Jared Isaacman has become the first non-professional astronaut to walk in space. On September 15, he stepped out of the ...

Weeks before Europa Clipper was to be shipped for launch, scientists discovered a potentially fatal flaw that might endanger ...

Athens Flying Week in Tanagra, Greece features air battles and stunning aerial displays. Witness top aviation performances.

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

The Polaris Dawn crew is back on Earth, splashing down in the waters off the coast of Florida early Sunday morning.

The four Polaris Dawn astronauts splashed down safely off the coast of Florida today (Sept. 15), bringing an end to their ...

The Polaris Dawn crew is back on Earth, splashing down in the waters off the coast of Florida early Sunday morning.

Four private astronauts are back on Earth after a five-day mission that set firsts and broke records in an effort to advance ...

Spectacular, if ghostly, infrared images of the spacecraft during re-entry were captured by a NASA photo-reconnaissance jet and then by ... had a pretty neat view of Polaris Dawn entering ...