Virgin's SpaceShipTwo Completes 4th Glide Test

摘要

Virgin Galactic conducted another successful drop test of its SpaceShipTwo suborbital spacecraft Jan. 13, the latest in a series of smooth solo glides over the California desert for the commercial spaceship.SpaceShipTwo, designed and built by Mojave, Calif.-based Scaled Com-posites, was released from its WhiteKnightTwo mothership a little af-ter 8 a.m. local time Jan.