Engineers began loading NASA’s Artemis II moon rocket with more than 750,000 gallons of supercold propellants Monday in a critical countdown “wet dress” rehearsal to verify the giant rocket is ...

Add Yahoo as a preferred source to see more of our stories on Google. The Space Launch System (SLS) rocket and the Orion spacecraft, integrated for the Artemis II mission, are seen at Launch Pad 39B ...

CAPE CANAVERAL, Fla. -- NASA said Tuesday it will now target a March launch of its new moon rocket after running into exasperating fuel leaks during a make-or-break test a day earlier. The space ...

The delays have pushed the program well beyond its original 2026 lunar landing target, which officials had long considered optimistic.

NASA has begun a crucial test Monday of its towering Space Launch System rocket — marking one of the final steps before the vehicle launches four astronauts into deep space for the first time since ...