Nasa called off its latest attempt to launch the revolutionary Artemis 1 moon rocket on Saturday after failing to plug a fuel leak found during tanking. It was the second time in five days that technical concerns had held the spacecraft on the launchpad. Mission officials at Kennedy Space Center waited until late in the countdown to scrub the liftoff following the failure of various workarounds to attempt to seal the leak of liquid hydrogen while it was being injected into the core stage of the Space Launch System (SLS) rocket. Esther Butler is an investigative freelance journalist on the topics of Space for 10 years. She prefers to go by a Pseudonym
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