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

NASA has officially begun rolling the Artemis II rocket away from Launch Pad 39B and back toward the Vehicle Assembly ...

NASA is about to roll its Artemis II moon rocket back to the Vehicle Assembly Building to fix a helium flow issue that guarantees astronauts won't fly around the moon in March.

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 taking steps to potentially roll back the Artemis II rocket and Orion spacecraft to the Vehicle Assembly Building (VAB) at the agency’s Kennedy Space Center in Florida after overnight Feb. 21 ...

NASA engineers conduct intricate fueling rehearsals for the Artemis II mission. These simulations test the entire launch countdown process on the ground. The Space Launch System rocket is loaded with ...

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

NASA announced it had found the source of a helium flow blockage that forced it to roll the Artemis II rocket back from the ...

CAPE CANAVERAL — NASA’s new moon rocket suffered another setback Saturday, almost certain to bump astronauts’ first lunar ...

NASA has opted out of using Boeing's Exploration Upper Stage (EUS), and has awarded a contract to the United Launch Alliance, ...