Sierra Nevada Corporation’s (SNC) Space Systems is proud to announce that its Hybrid Rocket Motor propelled Virgin Galactic’s SpaceShipTwo (SS2) sub-orbital vehicle on its first ever powered flight.

A private spaceship designed to carry space tourists made its first rocket-powered test flight today (April 29), reaching supersonic speeds as it paved the way toward commercial flights in the near ...

Yesterday afternoon, Virgin Galactic successfully completed the second rocket-powered test flight of its SpaceShipTwo spacecraft. Here now is the footage from the ...

Virgin Galactic’s first crewed test flight of its SpaceShipTwo Unity craft from Spaceport America in New Mexico has failed to reach the boundary of space. The test flight, which took place on Saturday ...

WhiteKnightTwo, seen here flying above Spaceport America in New Mexico in early May, may have a "fatigue and long-term stress" issue that needs to be fixed now, rather during a planned maintenance ...

The two cabins and four Pratt & Whitney jet engines straddle a central mount for the rocket plane, which will be carried to an altitude of 50,000 feet and dropped. Then SpaceShipTwo will light up its ...

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SAN FRANCISCO—A pair of Virgin Galactic pilots fired up the hybrid rocket engine on Unity, the leader of a planned fleet of air-launched SpaceShipTwo (SS2) suborbital vehicles, for a third powered ...

To hear founder Richard Branson tell it, the first operational flight of Virgin Galactic’s SpaceShipTwo has been 18 months out since at least 2008. But a series of delays, technical glitches, and ...