Virgin Galactic has successfully sent a spacecraft to the edge of space.
The high-altitude launch is the first commercial US flight beyond the atmosphere since 2011 - and a major advance for civilian space travel.
More than 600 people have bought tickets - some paying $250,000 - for the chance of four minutes of weightlessness beyond the reach of gravity.
The company's boss Sir Richard Branson has told Sky News he hopes a commercial flight will take place by March 2019.
(Source: Sky News YouTube channel)