Hours after holding what the space agency called a successful dress rehearsal, NASA found interrupted helium flow into the rocket, handing a significant setback to the lunar mission.

NASA had been hoping to launch four astronauts on a voyage around the moon in the Artemis II mission in February, but technical issues with the Space Launch System (SLS) rocket forced the space agency ...

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 II rocket encountered a new helium flow issue which is likely to delay its early March launch. Here's what we know.

An issue with the SLS rocket's helium pressurization system is prompting the move. It can only be worked on while inside NASA's Vehicle Assembly Building.

CAPE CANAVERAL, Fla. (AP) — Grounded until at least April, NASA’s giant moon rocket is headed back to the hangar this week ...

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 will again attempt to fuel up its moon rocket and do a launch-day walkthrough ahead of its Artemis II mission to send four astronauts around the moon.

NASA says it can't try until March at the earliest to send a crewed spacecraft on a flight around the moon and back, due to hydrogen leaks during testing of the Artemis II rocket.

NASA plans to recruit private-sector talent and convert contractors to civil servants as it accelerates Artemis moon missions.

Upcoming Florida rocket launches include SpaceX Starlink and EchoStar missions, Blue Origin’s New Glenn flights, NASA’s Artemis II, and other 2026 missions from Cape Canaveral and Kennedy Space Center ...