
NASA conducted a fifth RS-25 single-engine hot fire yesterday as a continuation of its ongoing seven-part test series, supporting development and production of engines for the agency’s Space Launch System (SLS) rocket on future missions to the Moon.
Operators fired the engine for more than eight minutes on the A-1 Test Stand at Stennis Space Center near Bay St. Louis, providing data for the lead contractor for the SLS engines, as it produces engines for use after the first four SLS flights. Four RS-25 engines, along with a pair of solid rocket boosters, will help power SLS, firing simultaneously to generate a combined 1.6 million pounds of thrust at launch and 2 million pounds during ascent.
NASA is building SLS as the world’s most powerful rocket to send the agency’s Orion spacecraft to the Moon as part of Artemis, including missions that will land the first woman and the first person of color on the lunar surface. The agency is working towards launch of the Artemis I uncrewed flight test this year.






