Aviation News – NASA has postponed the launch of its Artemis II Moon mission to March after engineers detected a hydrogen fuel leak during final pre-launch testing, giving crews more time to analyze and repair the issue before flight.
The delay follows a “wet dress rehearsal” conducted earlier this week in which NASA teams fueled the Space Launch System rocket with roughly 700,000 gallons of super-cold liquid propellant to simulate launch conditions. The test revealed a leak in the hydrogen system, prompting the agency to extend preparations to safeguard both the vehicle and the four-astronaut crew. Artemis II, selected as the first crewed lunar mission since the 1970s, will fly astronauts around the Moon without docking before returning to Earth.
During the rehearsal, technicians practiced every stage of countdown procedures, loading propellants into the rocket’s core stage and upper systems. The hydrogen leak, a critical issue in cryogenic propulsion, must be sealed before liftoff to prevent pressure loss or safety risks. Engineers are now studying hardware connections and seals, tightening bolts and inspecting feed lines to ensure the system can handle the extreme temperatures required for flight.
