Polaris has officially recalled two different vehicles, totaling more than 20,000 units nationwide, due to fire hazards.

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 POLARIS DAWN TO TAKE A STEP OUTSIDE INTO SPACE THIS MORNING.

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

PART OF THE POLARIS DAWN SPACE MISSION IN PARTNERSHIP WITH ELON MUSK’S SPACE X. WE ONE LAUNCHING FROM THE KENNEDY SPACE CENTER IN FLORIDA EARLIER THIS WEEK AFTER UNFAVORABLE WEATHER CAUSED WEEKS ...

The four have been orbiting Earth aboard Crew Dragon since Tuesday's pre-dawn launch from Florida of the Polaris Dawn mission. Isaacman "egressed Dragon" and conducted his first "suit mobility ...

SpaceX successfully launched a crew of four—including a billionaire—as part of a private space mission known as Polaris Dawn early Tuesday, as the company looks to make history with the first ...

While the daring mission has concluded, it's only the first of three spaceflights planned under the larger Polaris Program. At 3:36 a.m. ET on Sunday, the Dragon and the Polaris Dawn crew safely ...

Spacewalk Recap: Scroll down to read updates from the September 12 SpaceX Polaris Dawn spacewalk. On Wednesday, the crew of Polaris Dawn had traveled further than any human in 52 years ...

"We actually had a pretty neat view of Polaris Dawn entering," astronaut Mike Barratt radioed flight controllers in Houston. "All of us were more or less crowded in the (multi-window) cupola ...

And though the astronauts landed safely Sunday off the coast of Florida, the overarching Polaris Program is just beginning with two more spaceflights ahead. But for now, here's a look back at some ...

By Yan Zhuang After conducting the first-ever commercial spacewalk and traveling farther from Earth than anyone in more than half a century, the astronauts of the Polaris Dawn mission returned to ...