Artemis II Moon Mission Faces Delay Due to Helium Issue

Saturday, February 21, 2026 at 11:17 AM

NASA announced Saturday it may need to move the Artemis II rocket and Orion capsule back from the launch pad after detecting problems with helium flow needed for liftoff. The space agency says this technical issue will likely push back the planned March launch window.

The space agency announced Saturday it may need to move the Artemis II rocket and Orion capsule away from the launch pad following the discovery of helium flow problems essential for takeoff.

NASA detected disrupted helium circulation, a critical component required for the spacecraft’s launch sequence, prompting officials to consider returning the vehicle to its assembly building for repairs.

“This will almost assuredly impact the March launch window,” NASA said.

The Artemis II mission represents NASA’s ambitious plan to return astronauts to lunar orbit for the first time since the Apollo era, marking a significant milestone in the agency’s goal to establish a sustainable presence on the Moon.

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