For those who are turned off by the Tokyo Olympics, three billionaires are conducting a different competition that might really change the world.

Virgin Galactic’s Richard Branson has already flown into space onboard his SpaceShipTwo rocket plane. Blue Origin’s Jeff Bezos is set to celebrate the July 20 anniversary of the first moon landing on his New Shepard rocket with another suborbital flight. SpaceX’s Elon Musk is developing a space tourism business on spacecraft that actually go into low Earth orbit.