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Quiet Boom: NASA's Windowless X-59 Jet Just Broke the Sound Barrier — and Maybe a 53-Year-Old Ban
NASA's needle-nosed, windowless X-59 quiet supersonic jet flew faster than sound for the first time on June 5, 2026, hitting roughly Mach 1.1 over Edwards Air Force Base. Designed to replace the sonic boom with a soft "thump," the experimental aircraft is the centerpiece of NASA's Quesst mission — and it went supersonic the same week Congress moved to lift the 53-year U.S. ban on overland supersonic flight. Here's what actually happened, what comes next, and why this is the biggest test yet of whether supersonic passenger travel comes back.