The four astronauts of the Polaris Dawn mission traveled to 870 miles above Earth on Tuesday, the highest humans have gone since NASA's Apollo program came to an end in the 1970s.

Polaris Dawn mission: What to know about SpaceX launch and its crew Four private astronauts will rocket into the upper reaches of Earth's orbit on a SpaceX Dragon capsule, where the first-ever ...

The Polaris Dawn astronauts from left: Anna Menon, Scott “Kidd” Poteet, Jared Isaacman and Sarah Gillis. The four spent hours on Tuesday doing science experiments in orbit after launching.

Jared Isaacman, astronaut and leader of the Inspiration4 and Polaris Dawn missions to space, made a second significant ...

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

The Polaris Dawn astronauts have exited the SpaceX Dragon capsule to expose themselves to the void of space while 435 miles above Earth. Early Thursday, the crew began final preparations to ...

The SpaceX Polaris Dawn mission carried out its spacewalk on Thursday with two astronauts emerging out of the capsule in Earth's orbit, tethered to the Crew Dragon spacecraft in the vacuum of space.

SpaceX’s Polaris Dawn Is Sending Astronauts to a Literal Radiation Belt to Test New Spacesuits. The risky new private space mission will launch on Monday, August 26. by Kiona Smith.

Jared Isaacman is a high-school-dropout-turned-billionaire who was once nominated to lead NASA. Now he's been dragged into ...

SpaceX Polaris Dawn astronauts conduct the first-ever private spacewalk An internet entrepreneur and a SpaceX engineer have become the first private astronauts to walk in space. Space.

A businessman who led the world’s first all-civilian space mission to orbit the earth and had been nominated to lead NASA by ...