SLS rocket and Orion capsule at the launch pad. How difficult it is to go back to the Moon… The Artemis II Lunar mission suffered another setback, as it is expected to miss the March launch window. After overnight data showed an interruption in helium flow in the SLS interim cryogenic propulsion stage, teams are troubleshooting and preparing for a likely rollback of Artemis II to the VAB at @NASAKennedy. This will almost assuredly impact the March launch window. @NASA will… — NASA Administrator Jared Isaacman (@NASAAdmin) February 21, 2026 Reuters reported: “NASA is taking steps to potentially roll back the Artemis II rocket and Orion spacecraft to its Vehicle Assembly Building after observing an interrupted flow of helium, the space agency said on Saturday….
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