A three-way competition between billionaire entrepreneurs Jeff Bezos, Elon Musk, and Richard Branson has spurred the development of a nascent astro-tourism industry. Branson's Virgin Galactic Holdings said last week its first commercial spaceflight, called "Galactic 01", would launch between June 27 and June 30. Since June 2021, when the first seat was sold for $28 million, Bezos' space tourism venture Blue Origin has offered 10-minute flights to an altitude of about 350,000 feet (106 km), where passengers experience a few moments of weightlessness before descending back ...