British billionaire Sir Richard Branson showed off a key piece of his fledgling commercial space program, unveiling a spacecraft designed to launch a passenger-carrying spaceship.

• 英国亿万富翁理查德-布兰森爵士向众人展示了其刚刚起步的商业太空旅游项目中的重头戏，揭秘了用来发射客用宇宙飞船的航天器。