NASA postpones launch of Artemis I Again

NASA has again canceled the first launch of its Space Launch System (or SLS) rocket after engineers failed to fix a persistent hydrogen leak.

A hydrogen leak was first observed this morning, shortly after the rocket began being fed liquid hydrogen. NASA said the leak "evolved into the 8-inch fast supply side while trying to transport fuel to the rocket."

The team made three troubleshooting attempts, but a leak was discovered after each attempt to fix the problem. After the third time, engineers recommended that the launch be "forbidden." Soon after, the mission's launch manager, Charlie Blackwell Thompson, decided to cancel the launch attempt.

During tanking of the #Artemis I mission, a leak developed in the supply side of the 8-inch quick disconnect while attempting to transfer fuel to the rocket. Attempts to fix it so far have been unsuccessful. Stand by for updates. https://t.co/6LVDrA1toy

— NASA (@NASA) September 3, 2022

The agency also canceled the previous launch attempt for the SLS, which was supposed to occur on August 29, citing problems with the engine liquefaction system intended to help engines reach a proper temperature before takeoff. A hydrogen leak was also detected during this launch attempt.