Don’t know the difference between the ground launch sequencer and the ICPS for the Artemis II mission? Here’s everything you ...

Final checks, fueling prep, and crew quarantine mark the last phase before the 10-day lunar flyby.

NASA and contractor engineers pumped more than 750,000 gallons of supercold propellants into the agency's huge Space Launch System rocket Thursday without any signs of hydrogen leaks in a major step ...

Add Yahoo as a preferred source to see more of our stories on Google. A critical rocket test that will help determine when NASA can launch its first human moon mission in more than five decades ...

Braving rare sub-freezing temperatures, Kennedy Space Center workers pressed ahead with a dress-rehearsal countdown Sunday, readying NASA's huge Space Launch System (SLS) rocket for a critical fueling ...

A critical rocket test that will help determine when NASA can launch its first human moon mission in more than five decades appears to be on track after cold weather in Florida prompted a two-day ...

NASA cleared engineers to load more than 750,000 gallons of supercold propellants into the agency’s huge Space Launch System rocket Thursday in a second “wet dress rehearsal” countdown to verify leak ...