NASA May Roll Back Artemis II After Helium Flow Problem Rules Out March Launch

A disrupted helium supply has forced the agency to reconsider its timeline for the first crewed lunar mission since Apollo

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By LineZotpaper

Published22 February 2026

Read Time2 min

Sources3 outlets

NASA announced Saturday it is taking steps to potentially roll the Artemis II rocket and Orion spacecraft back to the vehicle assembly building at Kennedy Space Center after discovering an interrupted flow of helium, effectively ruling out its March launch target for the first crewed moon mission in over 50 years.

The decision comes just one day after NASA announced a March 6 target date for the mission, which would send four astronauts on a flyby around the Moon as a precursor to the planned Artemis III lunar landing, currently scheduled for 2028.

The helium issue was identified during routine pre-launch checks at the pad. Helium is used as a pressurant in the rocket's propulsion systems, and any interruption to its flow represents a potentially serious safety concern that must be resolved before crew can be placed aboard.

NASA said the rollback to the Vehicle Assembly Building would allow engineers to conduct a more thorough investigation and make any necessary repairs in a controlled environment. The agency has not yet announced a revised launch date.

Artemis II is the second mission in NASA's Artemis program, which aims to return humans to the lunar surface and eventually establish a sustained presence there. The first mission, Artemis I, was an uncrewed test flight that successfully orbited the Moon in 2022 after its own series of delays.

Analysis

Why This Matters

Artemis II represents humanity's first crewed journey beyond low Earth orbit since Apollo 17 in 1972. Any delay ripples through the entire Artemis program timeline, potentially pushing the Artemis III landing further into the future.

Background

The Artemis program has been plagued by delays and cost overruns since its inception. The SLS rocket and Orion capsule have cost tens of billions of dollars, and each delay adds pressure from Congress and competing private spaceflight companies.

What to Watch

How long the rollback takes will determine whether NASA can still attempt a launch in the spring window, or if the mission slips to later in 2026.