Virgin Galactic's SpaceShipTwo Space Plane Goes Supersonic In Third Test Flight (VIDEO)

A stunning new video lets viewers ride along on last-week's record-breaking test flight of Virgin Galactic's suborbital spaceliner SpaceShipTwo. The new SpaceShipTwo rocket-powered test flight video documents the piloted vehicle's jaunt on Jan. 10, which set a company altitude record by reaching 71,000 feet (21,641 meters) in the skies above California's Mojave Air and Space Port. SpaceShipTwo also attained a top speed of Mach 1.4 -- 1.4 times the speed of sound, which is roughly 761 mph (1,225 ...