The Artemis 2 mission launch has been delayed until at least April due to issues with the rocket's upper stage.

The rollback means NASA will no longer be able to attempt to launch the Artemis II mission in March.

Artemis 2 will send four astronauts — NASA's Reid Wiseman, Victor Glover and Christina Koch, and the Canadian Space Agency's Jeremy Hansen — on a roughly 10-day trip around the moon and back to Earth.