
COLORADO SPRINGS, Colo.--United Launch Alliance (ULA) plans to recover the first stage engine of its Next-Generation Launch System (NGLS), called Vulcan, in mid-air after flight in an effort to dramatically reduce the cost of launch, company President and CEO Tory Bruno said Monday.After launch, the Centaur upper stage will release the payload and the first stage booster will release the engine. The engine's hypersonic re-entry into earth's atmosphere will then take place with an advanced inflatable shield, which Bruno said…