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Engine Test Firing

CCP astronauts watch engine test firing
Astronauts watch controllers during a test-firing of an RL10 engine.

NASA astronaut Suni Williams watches as Aerojet Rocketdyne test team engineers direct the test-firing of an RL10 engine at the company’s facility in West Palm Beach, Florida. The engine will be one of two used for the Centaur upper stage during a United Launch Alliance Atlas V mission to launch Boeing’s CST-100 Starliner on a flight test carrying a crew. The engine was test-fired as part of acceptance testing to confirm the engine is ready for flight. Photo credit: NASA/Dimitri Gerondidakis