It's a success! Blue Origin conducts first hot-fire test of BE-4 engine
Billionaire Jeff Bezos' space company Blue Origin has fired up the most powerful new US rocket engine in decades, BE-4. The engine can be used in multiple rockets, including United Launch Alliance's Vulcan and Blue Origin's own orbital rocket, New Glenn.
Blue Origin Conducts First Test of BE-4 EngineSpace.com
World's largest methane-fueled rocket engine test-fired by Blue OriginSpaceflight Now
Jeff Bezos built a huge rocket engine and now Elon Musk has real competitionQuartz
Washington Post –Engadget –PCMag –Ars Technica
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