Billionaire space race (SEDS). Later, Jeff Bezos became a chapter president of SEDS. In the 1990s, Diamandis, dissolute with the state of space development, decided to spur it on and spark the suborbital space tourism market, by initiating a prize, the X Prize. This led to Paul Allen becoming involved in the competition, creating the Scaled Composites Tier One platform of SpaceShipOne and White Knight One which won the Ansari X-Prize in the 2000s. The technology of the winning entrant was then licensed by Richard Branson's Virgin Group as a basis to found Virgin Galactic. The base techniques of Tier One also form
Space tourism since 2009. As an alternative term to "tourism", some organizations such as the Commercial Spaceflight Federation use the term "personal spaceflight". The Citizens in Space project uses the term "citizen space exploration". Many private space travelers have objected to the term "space tourist", often pointing out that their role went beyond that of an observer, since they also carried out scientific experiments in the course of their journey. Richard Garriott additionally emphasized that his training was identical to the requirements of non-Russian Soyuz crew members, and that teachers and other non-professional astronauts chosen to fly with NASA are called astronauts.