NASA sent the Artemis II rocket back from Kennedy Space Center’s Launch Pad 39-B to the Vehicle Assembly Building to fix a problem in the rocket’s upper stage.

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

To fix the problem, NASA has to roll SLS and the stacked Orion spacecraft back to the Vehicle Assembly Building (VAB) at the agency’s Kennedy Space Center in Cape Canaveral, Florida. Weather permitting, teams will begin the rollback process on Tuesday, according to a Sunday update.

NASA's Artemis II rocket successfully completed a major prelaunch test. The crew will now enter quarantine as potential launch dates come as early as March.

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 2 moon mission is in trouble again after teams discovered a helium issue within the SLS rocket following successful wet dress rehearsal