In the latest setback to return astronauts to the moon, NASA delayed the highly anticipated flight yet again after a new problem cropped up with the rocket Saturday. April is now the earliest that the four Artemis II astronauts could fly to the moon.

NASA found an issue with helium flow in the upper stage of the Space Launch System rocket, prompting engineers to prep for a rollback. Artemis II will miss its March launch window.

The mission to the far side of the Moon and back will likely be postponed after problems with were spotted with its rocket, a Nasa official said.

With a successful fueling test behind them, NASA managers on Friday said the agency has a good shot at launching the Artemis II mission on March 6, sending four astronauts on a long-awaited trip around the moon.

The four astronauts heading to the moon for the lunar fly-by are the first humans to venture there since 1972. The ten-day mission will travel more than 600,000 miles.

The astronauts will begin their journey on Nasa's Space Launch System rocket Nasa is targeting early March to launch a crew around the Moon for the first time in more than 50 years, in what would be humankind's furthest trip into space.

By completing a second ‘wet dress rehearsal’ of its upcoming moon mission, NASA may be on track for a March launch date

NASA is ready to go to the moon. The space agency conducted a successful rehearsal of launch events for the upcoming Artemis II moon mission that will include Canadian Space Agency astronaut Jeremy Hansen and NASA astronauts Reid Wiseman,