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. via Pocket http://www.bbc.co.uk/news/science-environment-22354972#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa
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