A billionaire is about to lead the first private spacewalk. Here's what to know

When a billionaire self-funded a space mission in 2021, it was presented as a childhood cancer fundraiser and made a big splash in the private space tourism world. The crew, consisting of individuals from diverse backgrounds with no previous spaceflight experience, spent three days orbiting Earth in a SpaceX capsule. Initially, the billionaire believed it would be his only trip to space. However, he has since changed his mind and is now preparing for a more ambitious and risky mission called Polaris Dawn. The mission aims to push boundaries and advance space technology by exposing the crew to extreme conditions and testing new hardware.