[Ursa Major in PR Newswire] American rocket propulsion leader Ursa Major completes hotfire test campaign of 50,000-pound thrust “Ripley” engine

DENVER, March 9, 2023 /PRNewswire/ — Ursa Major, America’s leading privately funded company focused solely on rocket propulsion, today announced a milestone in the development of its redesigned “Ripley” rocket engine: successful hotfire tests.

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