The first NASA mission to the moon since 1972 is ready for its most crucial test to date
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The 322-foot-tall Artemis I rocket stack, including NASA's mega SLS rocket and Orion spacecraft, will begin the wet dress rehearsal Friday. The test is expected to last through Sunday. The results of the test will determine when the uncrewed Artemis I will launch on a mission that goes beyond the moon and returns to Earth.
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