NASA's Artemis II moon mission has been delayed again after recurring liquid hydrogen leaks during a critical rehearsal test forced engineers to abandon preparations at Kennedy Space Centre, pushing the historic crewed lunar flight from 8 February 2026 to March.
The setback emerged during a 'wet dress rehearsal' when fuel began escaping from the rocket over two days, prompting repeated shutdowns and restarts before teams scrapped the test altogether.
Four astronauts — Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen — had already entered quarantine in preparation for the launch and were released from isolation following the delay announcement.
The mission, which would mark humanity's first crewed journey around the moon in 50 years, now faces familiar technical gremlins that plagued its predecessor Artemis I in 2022, raising questions about whether NASA's ambitious timeline remains realistic.
The hydrogen leak represents more than just a setback. It's a recurring nightmare.
Artemis I, which completed an uncrewed loop around the moon in late 2022, suffered from similar hydrogen leaks that delayed the mission for months whilst engineers chased down the source.
BGRreported that this rehearsal revealed additional problems beyond fuel escape. Teams encountered pressure issues with the crew hatch and intermittent audio inside the capsule.
None of it was catastrophic. All of it mattered when human lives are at stake.
Liquid hydrogen is vital for the rocket, but it's also one of the trickiest fuels to manage. When stored at extreme cold temperatures, it can slip through microscopic gaps, turning tiny imperfections into major engineering headaches.
'Safety remains our top priority, for our astronauts, our workforce, our systems, and the public,' NASA Administrator Jared Isaacman said on 3 February.
Source: International Business Times UK
