The Polaris Dawn mission, the first commercial spacewalk mission, was successfully completed on Sunday, September 15, with the crew returning to Earth aboard SpaceX’s Dragon spacecraft after spending five days in space.

The mission launched on Tuesday from NASA’s Kennedy Space Center in Florida. The four-member civilian crew, funded and led by billionaire Jared Isaacman, reached the highest altitude humans have reached in 50 years since the Apollo moon mission in 1972.

The spacecraft reached a maximum altitude of 1,400 kilometers. On the third day, Thursday, September 12, Isaacman and Sarah Gillis conducted a spacewalk at an altitude of 737 kilometers, one after the other, as trained astronauts do, wearing high-tech SpaceX-developed spacesuits. SpaceX captured live footage of the astronauts standing with most of their bodies outside the spacecraft.

Over five days, the crew conducted more than 40 experiments, including monitoring the effects of space missions on human health and testing laser communication between the Dragon spacecraft and SpaceX’s Starlink satellite.

Polaris Dawn is the first of three planned missions in collaboration between Isaacman and SpaceX. This experience may open the door to a new type of space tourism where billionaires travel to space and conduct unique space experiments that no one has tried before.