SpaceX's Polaris Dawn mission launched Tuesday with ambitions to complete the first commercial spacewalk, a key step toward Elon Musk's Mars goal.

SpaceX's Polaris mission launched with a private crew aiming for a historic spacewalk and record altitude.

The Polaris Dawn crew boarded a SpaceX Dragon capsule for a 5:23 a.m. liftoff Tuesday atop the Falcon 9. The orbital mission will last five days.

The Polaris Dawn mission will test communications, perform research and conduct a spacewalk with SpaceX extravehicular spacesuits.

SpaceX is about to launch a risky mission of four private citizens who aren't professional astronauts. The billionaire-backed Polaris Dawn mission aims to attempt a first-of-its-kind commercial ...

It was led by Isaacman, Polaris Dawn’s commander. Following that mission, Isaacman purchased three additional flights from SpaceX and worked with the company to start the Polaris program.

Polaris Dawn: SpaceX is about to launch a billionaire and 3 others into orbit on civilian mission The aims of Polaris Dawn include the first-ever private spacewalk and a slew of scientific ...

The Polaris program and SpaceX have partnered with more than 30 institutions around the world to perform the research, which will focus largely on human health. “We are born into 1G,” said Menon.

Find out the latest about SpaceX's private Polaris Dawn spacewalk mission for billionaire Jared Isaacman.

Polaris Dawn aims to fly higher than any SpaceX Dragon mission to date, a height that hasn’t been reached since the end of the Apollo program half a century ago.

The Polaris Dawn mission patch depicts a spacewalking astronaut outside of SpaceX's Dragon spacecraft as reflected in the spacesuit visor of another crew member.

SpaceX aims to make progress in space and on Earth with its new venture, the Polaris Program. And the team behind it couldn't be more excited.