NASA Will Roll Back Its SLS Rocket for Repairs

NASA engineers hope to have their massive moon-bound Space Launch System ready for liftoff in a couple of months, but so far they’ve encountered some bumps in the road. On March 17, NASA rolled the world’s most powerful rocket out onto the launchpad at Kennedy Space Center in Florida to ready it for the Artemis program’s inaugural lunar mission later this year. Since then, technicians have completed a raft of checks on the huge rocket’s systems, but after three tries they haven’t been able to make it through the final test, a practice countdown called the “wet dress rehearsal test.”

The key problems have been a faulty helium check valve

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