NASA loading liquid hydrogen aboard Artemis 2 rocket in unannounced test

NASA loading liquid hydrogen aboard Artemis 2 rocket in unannounced test

Base of the Space Launch System (SLS) rocket where the tail service masts feed propellants into the rocket’s core stage. Image: Michael Cain/Spaceflight Now. NASA is loading liquid hydrogen aboard its Space Launch System moon rocket at the Kennedy Space Center on Thursday for an unpublicized but crucial test of the repairs made to a leaky umbilical that derailed a countdown rehearsal on Feb. 2. The operation to load liquid hydrogen into the huge…