Multiple choice general knowledge Which billionaire become the only repeat space tourist? Mark Shuttleworth Dennis Tito Charles Simonyi Gregory Olsen Reveal answer Fill a bubble to check yourself C Correct answer Explanation Charles Simonyi (a billionaire software architect) flew to the International Space Station twice - in 2007 and 2009. He is the only private space tourist to make multiple trips. Shuttleworth, Tito, and Olsen each flew once.