NASA scrubs launch of new moon rocket after engine problem

NASA’s new moon rocket sits on Launch Pad 39-B minutes after the launch was scrubbed on Monday in Cape Canaveral. (CHRIS O’MEARA/Associated Press)
NASA’s new moon rocket sits on Launch Pad 39-B minutes after the launch was scrubbed on Monday in Cape Canaveral. (CHRIS O’MEARA/Associated Press)

CAPE CANAVERAL — 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 t…