NASA has about three weeks to complete repairs to the Space Launch System’s upper stage to make the next launch window for the Artemis 2 mission.

NASA's Space Launch System rocket is about to depart the launch pad in Florida where it has been vertical for more than a ...

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 ...

NASA is adding another Artemis moon mission to its schedule even before Artemis 2 has a new date for launch. Here's the ...

CAPE CANAVERAL—NASA is revising its Artemis lunar exploration initiative with a new mission to dock one or both human lunar ...

In the early hours of February 2, with more than 700,000 gallons of cryogenic propellant flowing into the Space Launch System at Kennedy Space Center, a sensor flagged what mission controllers were ...

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 ...

Fixing the Space Launch System rocket's helium pressurization problem has pushed the Artemis II launch to at least April 1.

NASA has conducted two wet dress rehearsals for Artemis II, the latest of which concluded Feb. 19. Having resolved a hydrogen fuel leak that stymied the first practice countdown, NASA on Feb. 20 set ...

NASA's second attempt to run a "wet test" of the Space Launch System (SLS) for its Artemis II mission was successful. Following a failure of some seals during the first attempt earlier this month, ...

NASA’s first crewed moon mission in decades was delayed as its engineers grapple with an all-too-familiar rocket problem: hydrogen leaks. Fixing the issue is even trickier than it may seem.