NASA detects hydrogen leak during fueling test of Artemis II rocket launch; what is this first crewed lunar mission?​on February 3, 2026 at 6:05 am

Space Agency said Engineers are actively monitoring hydrogen concentrations at the tail service mast umbilical, the site of a previous leak and report that the levels are currently stable. Space Agency said Engineers are actively monitoring hydrogen concentrations at the tail service mast umbilical, the site of a previous leak and report that the levels are currently stable.