Editor’s note: Relive the SpaceX Polaris Dawn historic commercial spacewalk as it happened. A four-person crew of civilians on board SpaceX’s Polaris Dawn mission unlocked the hatch of their capsule ...

Two private astronauts have completed the first-ever commercial spacewalk, marking the first time that civilian astronauts have stepped out into space. As part of the Polaris Dawn mission, launched on ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. SpaceX’s Polaris ...

Two private astronauts conducting the first commercial spacewalk did not so much float out of their spacecraft as they did "stand up." Polaris Dawn crewmates Jared Isaacman and Sarah Gillis took turns ...

So what is it like to float out into the vacuum of space? “Ginormous fondue pot, bubbling over with piping hot awesomesauce,” said American astronaut Jack Fischer, as he embarked on his first-ever ...

The pioneering spacewalk came on the third of the five-day Polaris Dawn mission, which billionaire Jared Isaacman is commanding and helping to fund along with SpaceX. The first of three missions under ...

SpaceX's Polaris Dawn mission finally launched on Tuesday, after a series of delays pushed back its commencement date. Now the crew of the private spaceflight are scheduled to take the first ever ...

"SpaceX, back at home we all have a lot of work to do. But from here, Earth looks like a perfect world." That's what Polaris Dawn commander Jared Isaacman said as he became the first private citizen ...

HELM AND THREE OTHER DEMOCRATS. OKAY, GUYS, HERE IT IS. COOLEST STORY OF THE DAY BY FAR. IF YOU THINK THIS WAS AWESOME TO WATCH ONLINE, JUST IMAGINE HOW IT MUST HAVE FELT FOR THE PRIVATE CREW OF ...

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