WASHINGTON — Venus Aerospace, a Houston-based propulsion startup developing rocket engines for hypersonic flight and space transportation, said July 8 it raised $91 million in a Series B funding round to expand development and production of its rotating detonation rocket engine technology.

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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...