NASA says it needs to haul the Artemis II rocket back to the hangar for repairs
Summary
NASA will roll Artemis II back from Launch Complex 39B to the Vehicle Assembly Building due to a helium-flow issue in the upper stage, delaying the March launch window. Engineers will perform repairs inside the VAB, with potential to preserve an April launch window depending on findings. The article details the sequence of events, prior hydrogen-leak testing, and rollout/rollback plans.