An Aerojet Rocketdyne RS-25 rocket engine was tested on the Fred Haise Test Stand (formerly A-1 Test Stand) at the John C. Stennis Space Center in Mississippi, on 8 February 2023, at 19:50 UTC (13:50 CST, 14:50 EST). The test had a scheduled duration of about eight-and-a-half minutes (500 seconds) the length of time engines must fire during an actual flight. The engine operated at up to 111% power level, the same level needed to help power NASA’s Space Launch System (SLS).
Credit: NASA
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