Excess hydrogen concentration in a tail service mast umbilical interface had brought the countdown to an end during the first ...

NASA has begun a countdown and fueling test for its SLS rocket at the Kennedy Space Center that will determine an Artemis 2 launch date.

NASA's Artemis 2 moon mission is in trouble again after teams discovered a helium issue within the SLS rocket following successful wet dress rehearsal ...

The second wet dress rehearsal for the Artemis II mission continues as teams power up the rocket’s core stage — which contains propellant tanks — and charge the Orion spacecraft’s flight batteries.

Add Yahoo as a preferred source to see more of our stories on Google. With the giant SLS rocket on its Florida launch pad and the four astronauts of Artemis II preparing to make history as they fly ...

Launch teams replaced a pair of seals and a clogged filter at the Kennedy Space Center pad where the giant moon rocket stands before starting the countdown clocks back up. The two-day test will ...

The changes announced on Friday mean that NASA is essentially swapping the actual moon landing for an additional test mission ...

HANCOCK COUNTY, Miss. (WLOX) - NASA and L3Harris Technologies successfully conducted a full-duration hot fire test of a second RS-25 engine at Stennis Space Center in Hancock County. The engine will ...

A water system activation at the Thad Cochran Test Stand (B-2) on Jan. 30 at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, helped capture critical data to support testing a new SLS ...

Add Yahoo as a preferred source to see more of our stories on Google. With the giant SLS rocket on its Florida launch pad and the four astronauts of Artemis II preparing to make history as they fly ...