Artemis I is due to blast off from the Kennedy Space Center in Florida during a two-hour launch window which opens from 01:04 ET (06:04 GMT) on Wednesday, November 16.
NASA is just hours away from launching the most powerful rocket the world has ever seen. Lift-off from Cape Canaveral in Florida will take place between 08:33 and 10:33 ET (13:33 and 15:33 BST).