SpaceShipOne . ... Credit Copyright: Scaled Composites Explanation: Slung below its equally innovative mothership dubbed White Knight, SpaceShipOne rides above planet Earth, photographed during a recent flight test. ... Unlike more conventional rocket flights to space, SpaceShipOne will first be carried to an altitude of 50,000 feet by the twin turbojet White Knight and then released before igniting its own hybrid solid fuel rocket engine. ... NASA Web Site Statements, Warnings, and Disclaimers . ...