NASA has rolled back its Artemis II moon rocket and Orion spacecraft from the launch pad to the Vehicle Assembly Building due to a new technical issue with the helium pressurisation system. This setback, following earlier hydrogen leaks, means the planned March launch window is now unattainable.

NASA has postponed the launch of its Artemis 2 lunar mission until April, citing a new technical problem with the SLS rocket that requires its transfer to the Vehicle Assembly Building.