SOUND BARRIER: Scaled Composites' SpaceShipOne broke the sound barrier Dec. 17, the company said. The flight showed that "supersonic flight is now the domain of a small company doing privately funded research, without government help," the company said. The company's White Knight turbojet launch aircraft carried the rocket-powered SpaceShipOne to 48,000 feet over California, and then its engine carried it to 68,000 feet, where it achieved near weightlessness. One of the aircraft's wings was ...

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