Add Yahoo as a preferred source to see more of our stories on Google. The billionaire-funded Polaris Dawn mission completed its historic spaceflight on Sunday. The crew completed the first private ...

Prior to Polaris Dawn, Isaacman was the only member of the four Polaris Dawn crew to have been to outer space before. The mission, which Isaacman funded with SpaceX, was filled with landmark moments, ...

Like every other major milestone of the Polaris Dawn mission, you're going to have to be awake in the middle of the night to catch the action. When you purchase through links on our site, we may earn ...

Polaris Dawn finished its revolutionary spaceflight on Sunday when the four-member crew splashed down off Florida's coast after spending five days in Earth's orbit on the most ambitious commercial ...