The NASA moon rocket stands ready at sunrise on Pad 39B before the Artemis 1 mission to orbit the moon at the Kennedy Space Center, Monday, Aug. 29, 2022, in Cape Canaveral, Fla. (Joel Kowsky/NASA via AP)
CAPE CANAVERAL, Fla. (AP) — NASA called off the launch of its mighty new moon rocket on its debut flight with three test dummies aboard Monday after a last-minute cascade of problems culminating in unexplained trouble related to an engine.
