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 has postponed its historic mission to send astronauts around the moon and back again, after issues arose during a critical test of its most powerful rocket yet.

Most prominently, engineers detected leaking hydrogen during the test, known as a wet dress rehearsal that simulates a launch day countdown.