NASA's Artemis II rocket encountered a new helium flow issue and will rollback to the VAB. Here's what we know.

NASA took another crack at fueling its giant moon rocket Thursday after leaks halted the initial dress rehearsal and delayed ...

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

NASA's towering Space Launch System rocket will be rolled back off the launch pad for repairs, delaying the Artemis 2 launch ...

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 ...

A hydrogen leak at the base of NASA's Artemis II moon rocket on Monday threw a wrench into a carefully planned countdown "wet dress" rehearsal, interrupting a test intended to help clear the way ...

The two-day countdown test at NASA’s Kennedy Space Center in Florida included filling up the tanks of the giant Space Launch System rocket with millions of pounds of liquid hydrogen and liquid oxygen.

NASA's Artemis II rocket repairs are underway after a dislodged seal caused a helium flow issue, delaying launch.

CAPE CANAVERAL, Fla. -- NASA ran into exasperating fuel leaks during a make-or-break test of its new moon rocket Monday, calling into question how soon astronauts could take off for a trip around the ...

CAPE CANAVERAL, Fla. (AP) — NASA took another crack at fueling its giant moon rocket Thursday after leaks halted the initial dress rehearsal and delayed the first lunar trip by astronauts in more than ...