"According to a February 2 statement, NASA found that the rocket's core stage had sprung a leak and that efforts to correct it "proved unsuccessful." "The leak rate at the interface of the tail service mast umbilical continued to exceed the allowable limits," the update reads. "Liquid hydrogen filling operations on both the core stage and upper stage are paused as the team meets to determines next steps.""
"Late last month, the four daring NASA astronauts who are scheduled to venture around the Moon and back as part of the agency's historic Artemis 2 mission entered quarantine. Their ride, a small Orion capsule mounted atop the agency's enormous Space Launch System rocket, has already been rolled onto Launch Pad 39B at NASA's Kennedy Space Center in Florida."
"But the agency's remaining checks ahead of the launch - a gauntlet of tests called the "wet dress rehearsal" that involves running through the full launch sequence without a crew on board - didn't quite go as planned, forcing the agency to officially push back the launch date from its already ambitious early February timeline."
NASA delayed the Artemis 2 launch after a wet dress rehearsal revealed a leak in the rocket's core stage. The leak occurred at the interface of the tail service mast umbilical and exceeded allowable limits, halting liquid hydrogen fueling for both the core and upper stages. Repair attempts proved unsuccessful, prompting pause of hydrogen filling operations while teams determine next steps. The tentative February 8 launch date is no longer available and a second wet dress rehearsal is targeted for March as the earliest possible launch opportunity. The crew was released from quarantine. Engineers met many planned objectives despite several challenges during the two-day test.
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