Who was the first space tourist to visit the ISS in 2001?

Dennis Tito was the first space tourist to visit the ISS, arriving in 2001 aboard the Russian Soyuz TM-32 spacecraft. The American businessman and former NASA Jet Propulsion Laboratory engineer launched on April 28, 2001, with cosmonauts Talgat Musabayev and Yuri Baturin.

Tito reached the station during Expedition 2, shortly after the ISS had begun continuous human occupation. He spent roughly a week in orbit, conducting experiments, taking photographs, and participating in station activities before returning to Earth on May 6 aboard Soyuz TM-31. His flight was arranged through Space Adventures and involved a reported payment of about $20 million.

The term “space tourist” is commonly used, although NASA officially described Tito as a spaceflight participant. His mission was also a Russian commercial taxi flight that delivered a fresh Soyuz spacecraft for the resident crew. Later visitors included South African entrepreneur Mark Shuttleworth in 2002, Gregory Olsen and Charles Simonyi in 2005, and several others before the practice paused as ISS crew sizes and operational demands changed.