Another man, Mark Shuttleworth, is reported to have paid $20 Million to be taken to the ISS.
Russia is ready to sign on a third "space tourist" who will follow in the footsteps of American Dennis Tito and South African Mark Shuttleworth, a space agency official said on Tuesday.
"There are volunteers. Their numbers are even greater than we could expect, considering the cost of such an outing," Russian Space Agency spokesman Sergei Gorbunov told ITAR-TASS.
NASA meanwhile have produced new ISS guidelines for visitors. These require them to speak English (and basic Russian if arriving with them) and to train for 12 months in advance. The Code of Conduct prevents experimentation on guests, selling of souvenirs for profit, and includes a list of unwelcome guests.