COLORADO SPRINGS — The head of the U.S. Space Force launch program office, Maj. Gen. Stephen Purdy, said he has been briefed by United Launch Alliance on an anomaly experienced last month during testing of the Centaur upper stage of ULA’s new rocket Vulcan Centaur. But he said it’s too early to predict what long-term impacts further delays of Vulcan’s debut launch might have on the national security launch program.    

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Sandra Erwin writes about military space programs, policy, technology and the industry that supports this sector. She has covered the military, the Pentagon, Congress and the defense industry for nearly two decades as editor of NDIA’s National Defense...