A liquid hydrogen leak has interrupted Nasa’s preparations for its new Moon rocket launch. 

Controllers halted the fuelling operation for Artemis 1 on Monday morning 

but Nasa said its engineers were rectifying the issue and there was no word on whether it 

would cause delays to take-off from the Kennedy Space Centre in Cape Canaveral, Florida. 

Nasa said: “Teams continue to troubleshoot a liquid hydrogen leak at the mating interface with the core stage. 

“After manually chilling down the liquid hydrogen as part of troubleshooting efforts, they are in fast fill operations.” 

Managers said they would not know for sure whether the leaks had been resolved until attempting to load the rocket’s 

tanks with nearly one million gallons of super-cold fuel later on Monday, according to the Associated Press. 

The uncrewed flight marks the next chapter in putting humans back on the Moon, and is the first in Nasa’s Artemis programme. 

There will be astronauts on board for subsequent missions, with the first crewed flight into space scheduled for 2024. 

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