NASA has been forced to postpone a rocket launch that would have seen the first humans on the Moon in 50 years. The Artemis 1 was due to take off from the Kennedy Space Centre in Florida, but NASA said it was experiencing an "unplanned stop" around 40 minutes before the scheduled launch.
The space agency has now confirmed that the launch is no longer happening as "teams work through an issue with an engine bleed." The agency added that it would continue to gather data and release further updates on the timing of the next launch attempt.
NASA's Artemis programme aims to land astronauts on the Moon in 2025, with the first phase due to have happened on Monday, August 29. It would be the first time that humans have landed there since 1972, when Apollo 17 astronauts Gene Cernan and Harrison Schmitt walked on the Moon.