Artemis 1: to boldly go where four RS-25 engines have gone many times before

Artist’s rendering of SLS at launch, with four RS-25 engines, along with a pair of solid rocket boosters, providing 8.8 million pounds of thrust. Image: NASA/MSFC Each of the four RS-25 engines currently positioned at the base of NASA’s Space Launch System have gone to space many times before, and each has an interesting story …

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