American billionaire Charles Simonyi, a computer software executive who paid more than $20 million to fly to the International Space Station aboard a Russian-built Soyuz capsule in spring 2007, will train for a second Soyuz trip to the space station in spring 2009.

Vienna, Va.-based Space Adventures announced Tuesday that Simonyi will be the first repeat customer since the company began organizing space missions for private citizens in 2001.

http://www.space.com/news/080930-simonyi-spacetourist.html