Virgin Galactic's spaceplane completes first test flight
Billionaire Richard Branson-led aerospace company Virgin Galactic's spaceplane 'VSS Unity' successfully completed its first test flight on Sunday. During its 1 hour 20 minute flight, the plane achieved a maximum speed of approximately 740 kmph while gliding back from an altitude of 50,000 feet. Aimed at space tourism, the plane will take passengers to the upper edge of Earth's atmosphere.