To fix the problem, NASA has to roll SLS and the stacked Orion spacecraft back to the Vehicle Assembly Building (VAB) at the ...

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

Engineers will review the data before setting the timeline for the second wet dress rehearsal.

The next series of launch opportunities for the Artemis II mission begin March 3. If the mission doesn’t lift off in March, NASA will need to roll the rocket back to the Vehicle Assembly Building to ...

A NASA test to confirm repairs to seals in the SLS’s liquid hydrogen fueling system was only partially successful because of problems with ground equipment.

That means NASA and contractor ground teams will immediately begin preparing to roll the 322-foot-tall (98-meter) SLS rocket off of Launch Complex 39B and back to the VAB. The rocket and its mobile ...

NASA is looking to make sure the problems with leaks in its moon rocket have been remedied with another Artemis II test run ...

NASA is looking to launch the Artemis II moon mission as early as March 6 after a successful wet dress rehearsal at Kennedy Space Center.

BAY ST. LOUIS, Miss — NASA's final test of its Space Launch System (SLS) rocket to make sure it was ready to launch future Artemis Moon missions experienced early engine shutdown. The core stage ...

During the lead-up to NASA’s Artemis 1 mission back in 2022, recurring hydrogen leaks led to significant delays and a ...