When you're the first to try something, you know that it comes with inherent risks.
If that something is flying people into outer space in an entirely new machine, those risks are rather high.
For a while, it seemed that Richard Branson's Virgin Galactic was a breezy, pioneering idea that was as much about entertainment, as about space.
Indeed, renowned Hollywood g-forces like Tom Hanks, Angelina Jolie, and Ashton Kutcher signed up very quickly.
Justin Bieber, too, thought it would be fun to get a little higher.