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Teams at NASA’s Kennedy Space Center in Florida offload the second of four RS-25 SLS (Space Launch System) rocket engines built by L3 Harris Technologies for the agency's Artemis III mission on Tuesday, June 23, 2026, inside the spaceport’s Vehicle Assembly Building. The SLS rocket will use four RS-25 engines in the core stage to propel the Orion spacecraft into orbit providing over two million pounds of thrust at liftoff. As part of the Golden Age of innovation and exploration, NASA will send Artemis astronauts on increasingly difficult missions to explore more of the Moon for scientific disc…