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

SpaceX's Polaris Dawn mission was a spaceflight for the ages. Here's what the historic mission was like from launch to ...

For five days, the crew of the Polaris Dawn mission completed a number of objectives that could one day bolster deep-space ...

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

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

The SpaceX Dragon capsule made a water landing Sunday in Florida, bringing to an end the historic commercial Polaris Dawn ...

A New Hampshire man and three other crew members from the Polaris Dawn mission discussed their historic journey to space.

The launch of Polaris Dawn from Kennedy Space Center includes the first civilian commercial spacewalk and other factors that ...

Fresh off their historic space flight, the crew of the Polaris Dawn sat down for an exclusive interview about their historic ...

An update to a story we first told you about last month about physicians at the Medical College of Georgia working with the ...

In an exclusive interview with NBC’s Lester Holt, which will air on NBC Nightly News on Tuesday, the crew — billionaire ...