A test of NASA's towering Space Launch System rocket uncovered another issue with the vehicle meant to launch astronauts on a mission around the moon.

NASA is moving forward with preparations for the Artemis II mission, and the agency will soon provide live coverage of a major milestone. On Thursday, Feb. 19, NASA will broadcast its next wet dress rehearsal for the powerful Space Launch System rocket,

Excess hydrogen concentration in a tail service mast umbilical interface had brought the countdown to an end during the first test.

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.

The next series of launch opportunities for the Artemis II mission begin March 3. If the mission doesn’t lift off in March, NASA will need to roll the rocket back to the Vehicle Assembly Building to refresh its flight termination system. There are more launch dates available in April and May.

During the lead-up to NASA’s Artemis 1 mission back in 2022, recurring hydrogen leaks led to significant delays and a cancelled launch attempt. The agency had three years to address the underlying issues with the Space Launch System (SLS) rocket’s hardware,

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.

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. The crew of NASA’s Artemis II mission (left to right) will be: NASA astronauts ...

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 visible in Florida.