For the second time in five days, NASA on Saturday halted a countdown in progress and postponed a planned attempt to launch the debut test flight of its giant, next-generation rocket, the first mission of the agency's moon-to-Mars Artemis program. The latest attempt to launch the 32-story-tall Space Launch System (SLS) rocket and its Orion capsule was scrubbed after repeated failed attempts by technicians to fix a leak of super-cooled liquid hydrogen propellant being pumped into the vehicle's core-stage fuel tanks. Pre-flight operations were officially called off for the day by Artemis I launch director Charlie Blackwell-Thompson about three hours before the targeted two-hour launch window was due to open at 2:17 p.m. EDT (1817 GMT). NASA's next-generation moon rocket, the Space ...
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