NASA has delayed the first crewed launch of its Artemis program after encountering a problem with its rocket system.

NASA's Artemis 2 moon mission is in trouble again after teams discovered a helium issue within the SLS rocket following ...

That means NASA and contractor ground teams will immediately begin preparing to roll the 322-foot-tall (98-meter) SLS rocket off of Launch Complex 39B and back to the VAB. The rocket and its mobile ...

During the lead-up to NASA’s Artemis 1 mission back in 2022, recurring hydrogen leaks led to significant delays and a ...

The Artemis II mission aims to send four astronauts​ — Reid Wiseman, Victor Glover, Christina Koch and Canadian astronaut ...

The two biggest commercial space companies are stepping up.

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.

A NASA test to confirm repairs to seals in the SLS’s liquid hydrogen fueling system was only partially successful because of problems with ground equipment.

NASA's Artemis 2 moon mission faces a new issue after a rocket test uncovered an issue with ground support equipment that ...

The first crewed mission of the Artemis program won’t land on the moon, but it aims to take four astronauts farther from the ...

Add Yahoo as a preferred source to see more of our stories on Google. The towering rocket that will help propel a group of astronauts on NASA's first human moon mission in half a century may soon be ...

NASA completed a second wet dress rehearsal for the Artemis 2 mission on Feb. 19 without the hydrogen leaks seen in the first such test earlier this month.