Businessman Sir Richard Branson has reiterated his claim that the first Virgin Galactic flight into space will take place later this year.
The launch date for the much-delayed project has been put back repeatedly from the original 2007 forecast, but the Virgin entrepreneur has confirmed he will fly with his children on the inaugural flight later in 2014.
Celebrities including Hollywood actors Tom Hanks and Angelina Jolie have apparently reserved spaces to become space tourists, with tickets costing six figures and including brief periods of weightlessness during the two-hour trip to 62 miles above the Earth.
In an interview with the Guardian's Weekend magazine, Sir Richard said: "When I started Virgin Atlantic, I knew nothing about running airlines. I just felt somebody should be able to do it better than British Airways.
"Then we got a lot of creative people who weren't from the airline world to go and shake up the business. Starting a spaceship company is not that dissimilar."
According to the Guardian, Sir Richard said the first unmanned test flight will take place "soon", and the newspaper said the inaugural flight - due later this year - will be televised live by American broadcaster NBC.
In a statement to the newspaper, it said: "Without a doubt, Sir Richard and his children taking the first commercial flight into space will go down in history as one of the most memorable events on television."
The company says the reusable space vehicle was carried by aeroplane to 46,000 feet the day before, and then released.
The craft used its rocket motor the rest of the way to reach its highest altitude to date. SpaceShipTwo and its two-member crew then glided to a safe landing in the desert north of Los Angeles.
Virgin Galactic says the 10-minute test flight moves the company closer to its goal of flying paying passengers into space.
No date has been set for the first commercial flight but hundreds of would-be tourists have made down payments of more than £125,000 for the chance to fly.
Virgin Galactic is owned by Sir Richard's Virgin Group and Abu Dhabi's A abar Investments PJS.