One day after Star Trek actor William Shatner became the oldest person to go to space, traveling aboard Amazon founder Jeff Bezos' Blue Origin rocket and capsule, Prince William criticized those using their billions to leave the planet. WPA Pool | Getty Images “We’ve seen everyone trying to get space tourism going ... we need some of the world’s greatest brains and minds fixed on trying to repair this planet, not trying to find the next place to go and live," said the 39-year-old duke. On July 11, English business magnate Richard Branson became the first of the so-called space billionaires to fly the VSS Unity, part of the Virgin Galactic fleet, to space. Less than two weeks later, on July 20, Jeff Bezos' New Shepard rocket followed suit before completing its second trip on October 13. Related: Bill Gates Delivers 'Classiest Burn' to Billionaires Trying to Go to Space Following his Thursday trip to space, Shatner said he was "struck by the fragility" ...