Virgin Galactic , the world’s first commercial spaceline, announced that its passenger-carrying suborbital space vehicle, SpaceShipTwo (SS2), successfully completed its first glide flight test on June 26 since a recent integration period for rocket motor systems and maintenance. Also, on June 26, the spaceship’s engine, RocketMotorTwo (RM2), underwent another successful full duration test fire, marking the first time the company and its partners have undertaken test flight and test firing on the same day. Both milestones prime Virgin Galactic to reach powered flight by the end of the year.