Virgin Galactic's private spaceship reaches supersonic speeds

      |Virgin Galactic's passenger spacecraft, SpaceShipTwo, completed its first rocket-powered flight above the Mojave Desert in California. Ignition of the rocket motor was triggered, carrying SpaceShipTwo to a maximum altitude of 56,000 feet. During the 16-second engine burn, the spaceship broke the sound barrier, according to a statement from Virgin Galactic. (NO AUDIO)

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