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High Bay 3 of the Vehicle Assembly Building is seen after NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard atop a mobile launcher in departed to begin its trip to Launch Complex 39B for the first time, Thursday, March 17, 2022, at NASA’s Kennedy Space Center in Florida. Ahead of NASA’s Artemis I flight test, the fully stacked and integrated SLS rocket and Orion spacecraft will undergo a wet dress rehearsal at Launch Complex 39B to verify systems and practice countdown procedures for the first launch