An astronaut ventures out of the Polaris Dawn spacecraft. (Photo via X.)

On September 12, two astronauts took the first private spacewalk in history. The SpaceX Polaris Dawn mission was funded by billionaire entrepreneur and pilot Jared Isaacman.

Going up

The Polaris Dawn lifted off from Florida’s Kennedy Space Center on September 10. During its five-day mission, the four-person crew studied the effects of space radiation on the human body.

The spacecraft travelled 1400 kilometres from Earth. That’s three times higher than the International Space Station. It’s the farthest humans have travelled into space in 52 years.