Spaceship makes first powered flight
30 April 2013 Last updated at 13:02 BST
The spaceplane being developed by UK billionaire Sir Richard Branson has made its first powered flight.
The vehicle was dropped from a carrier aircraft high above California's Mojave Desert and ignited its rocket engine to go supersonic for a few seconds.
Sir Richard's intention is to use the spaceship to carry fare-paying passengers on short pleasure rides above the Earth's atmosphere.
Catharina Moh reports