This has been a big month for billionaires in space. On July 11, Richard Branson flew aboard his Virgin Galactic VSS Unity spacecraft 80 km (50 mi) up to suborbital altitude, returned safely to Earth, and earned his astronaut wings in the process. Tuesday morning, Jeff Bezos followed, flying his Blue Origin New Shepard ship even higher—100 km (62 mi) up—and similarly joined the astronaut club.