The shape of travel to come will be unveiled by Sir Richard Branson on Wednesday when he gives an update on his space tourism plans.
Sir Richard will be at the Farnborough Air Show to provide the latest news on his Virgin Galactic company.
The world's first commercial spaceline, Virgin Galactic will see tourists going up into space via first a carrier aircraft - WhiteKnightTwo - and then a sub-orbital space vehicle, SpaceShipTwo (SS2).
A man works on the Virgin Galactic at the Farnborough International Airshow in Hampshire
A full-scale replica of SS2 is on display at the Farnborough show in Hampshire, which runs until Sunday.
Celebrities such as Hollywood stars Tom Hanks, Brad Pitt and Angelina Jolie have expressed interest in becoming space tourists in a project in which passengers will attain heights of around 70,000ft and experience weightlessness.
WhiteKnightTwo has already completed around 80 test flights, while American aviation authority the FAA has granted the project an experimental launch permit.
Virgin Galactic chief executive and president George Whitesides has said the project is "on course for powered flight by the end of 2012".
Mr Whitesides will join Sir Richard at Farnborough today along with special guests as well as what Virgin describe as "future astronauts".