Portal’s heat exchanger thruster, known as Flare, fires up during a test in a vacuum chamber. (Portal Space Systems Photo) Bothell, Wash.-based Portal Space Systems says it has successfully tested its ...
The company's novel rocket engine could be a game changer for the U.S. military.
The Gateway, NASA’s upcoming lunar space station, is one step closer to reality as engineers have successfully powered on its solar electric propulsion system, a spacecraft engine designed to orbit ...
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