SpaceX Tracks Crew Dragon Test Explosion To Faulty Valve

Credit: Cory Huston/NASA
Check valves normally allow fluids to flow through in only one direction, so it came as a surprise to SpaceX to learn that a slug of liquid oxidizer made it through a valve in a Crew Dragon capsule’s helium pressurization system, triggering an explosion that destroyed the test capsule and delaying a...

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