
United Launch Alliance (ULA) has selected Blue Origin’s BE-4 engine to power its Vulcan Centaur rocket, the alliance said Thursday.The alliance, which is a joint venture between Lockheed Martin [LMT] Space Systems and Boeing [BA] Defense, Space and Security and produces the Delta IV and Atlas V launch systems, said the engine will fuel the next-generation rocket’s booster stage. The liquefied natural gas-fueled booster will be powered by two BE-4 engines, each producing 550,000 pounds of sea-level thrust, according to…