Feb 21 (Reuters) – 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. “This will almost assuredly impact the March launch window,” NASA said. 

* NASA said it is taking steps to roll back the Artemis IIrocket and Orion spacecraft to the Vehicle Assembly Building atthe agency’s Kennedy Space Center in Florida. * The agency observed overnight an interrupted flow ofhelium in the Space Launch System rocket’s interim cryogenicpropulsion stage. Helium flow is required for launch.   * NASA said on Friday it was targeting March 6 for thelaunch of four astronauts around the moon and back as part ofits Artemis II mission.  * The planned Artemis II crew includes three U.S. astronauts- Reid Wiseman, Victor Glover and Christina Koch – and aCanadian astronaut, Jeremy Hansen. The mission is poised to bethe farthest human flight into space ever, and the first crewedmoon mission since the U.S. Apollo program more than half acentury ago. * Artemis II is a precursor to NASA’s planned astronaut moonlanding with Artemis III, which is scheduled for 2028.    

(Reporting by Akanksha Khushi in Bengaluru; Editing by Sharon Singleton, Rod Nickel)