Teams are troubleshooting an issue with a LAS (launch abort system) battery on the vehicle being outside the acceptable range. If unresolved, this could trigger an abort criteria closer to launch. The range remains green and the timeline is progressing towards Artemis 2.

Europe keeps a close eye on the countdown to the Artemis II launch too.

At European Space Agency's facilities in the Netherlands, teams from the European Service Module are already on console for the 10-day mission.

All systems are GO from the Eagle room, Europe’s mission evaluation hub.

Artemis II update from NASA summarised:
• Vehicle successfully configured for flight
• Issue with battery won't affect launch
• Weather is 90% go for launch

NASA has not set a new T-0 but the Artemis II mission will not launch at 6:24 pm ET today. “A little more work” to do.

Liftoff.

The Artemis II mission launched from NASAKennedy at 6:35pm ET (2235 UTC), propelling four astronauts on a journey around the Moon.

Artemis II will pave the way for future Moon landings, as well as the next giant leap — astronauts on Mars.