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CAPE CANAVERAL — For the second time in five days, NASA on Saturday paused an ongoing countdown and postponed a planned attempt to launch the first test flight of its giant next-generation rocket, the first mission of the lune-à-Mars agency Artemis program.
The latest attempt to launch the 32-story Space Launch System (SLS) rocket and its Orion capsule has been scrubbed after repeated attempts by technicians to fix a leak of supercooled liquid hydrogen propellant pumped into the rocket’s fuel tanks. the middle floor of the vehicle. .