Virgin Galactic's spacecraft hits twice the speed of sound
Richard Branson-led commercial spaceflight Virgin Galactic's SpaceShipTwo VSS Unity achieved a speed of nearly twice that of sound at 2,346.12 kmph during its second test flight on Tuesday. The rockets burned for 31 seconds and reached an altitude of 34.8 km, the company said. Founded in 2004, Virgin Galactic aims to fly passengers to space, allowing them to experience weightlessness.