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NASA's X-59 QueSST has begun test flights to reduce sonic booms to a 'gentle thump' for those on the ground, with its first flight occurring in October 2025. The aircraft's innovative design aims to produce S-Waves, significantly lowering peak overpressure compared to the Concorde. NASA plans to gather public feedback and work with regulators to establish new noise thresholds for supersonic flights, while addressing challenges in scaling the technology for commercial use.