NASA likely to delay Artemis II moon mission launch again due to helium flow problem

NASA will likely delay the launch of the Artemis II mission around the moon again after the discovery of a helium flow problem overnight Friday.

The space agency said Saturday that the rocket and Orion spacecraft may be taken back to the Vehicle Assembly Building at Kennedy Space Center in Florida, after crews witnessed an interruption in the flow of helium during the rocket’s interim cryogenic propulsion stage. 

NASA explained that helium is used to "maintain the proper environmental...