NASA rolls back Artemis II SLS rocket to Vehicle Assembly Building for helium flow repairs

NASA's Space Launch System rocket and Orion spacecraft for the Artemis II mission began rolling back from Launch Pad 39B at Kennedy Space Center in Florida at 9:38 a.m. EST on Feb. 25. The launch director gave the go for the rollback at 9:28 a.m. EST followed by first motion 10 minutes later. The move to the Vehicle Assembly Building is expected to take up to 12 hours. Once the vehicle arrives, technicians will establish platforms to diagnose the helium flow issue to the rocket's upper stage and fix it. A livestream of the rollback will be streamed on the agency's YouTube channel. Updates regarding the rollback will be posted on the mission blog as well as on X by NASA and NASA Artemis and on Facebook by NASA Artemis.