Engineers were able to fully fuel NASA's Artemis II moon rocket without any signs of leaks like the ones that derailed an earlier dress rehearsal.

NASA’s first crewed moon mission in decades was delayed as its engineers grapple with an all-too-familiar rocket problem: hydrogen leaks. Fixing the issue is even trickier than it may seem.

Liquid hydrogen fuel leaks forced NASA to delay the launch of Artemis II—the same scenario it encountered four years ago during the Artemis I mission.

NASA’s long-awaited moonshot with astronauts is off until at least March because of hydrogen fuel leaks that marred the dress rehearsal of its giant new rocket. NASA said Tuesday it will now target a March launch of its new moon rocket after running into exasperating fuel leaks during a make-or-break test.

Add Yahoo as a preferred source to see more of our stories on Google. With a space station medical evacuation safely completed, NASA is focused on two challenging missions proceeding in parallel: launching four astronauts on a flight around the moon, at ...

NASA is targeting March 6 as the earliest possible launch date for the Artemis II mission to the moon following a successful 'wet dress rehearsal' on Thursday.