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  "path": "/blogs/quesst/2026/06/12/x-59-blog-061226/",
  "publishedAt": "2026-06-12T19:35:08.000Z",
  "site": "https://www.nasa.gov",
  "tags": [
    "Aeronautics",
    "Ames Research Center",
    "Armstrong Flight Research Center",
    "Blogs",
    "Commercial Supersonic Technology",
    "Glenn Research Center",
    "High-Speed Flight",
    "Integrated Aviation Systems Program",
    "Langley Research Center",
    "Low Boom Flight Demonstrator",
    "NASA Aircraft",
    "Quesst: The Flights",
    "Quesst: The Vehicle",
    "Supersonic Flight",
    "NASA’s X-59 Reaches Speed, Altitude for Future Quiet Supersonic Flights",
    "NASA Science"
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  "textContent": "NASA’s X-59 experimental aircraft reached a major milestone Friday, June 12, flying Mach 1.4 (about 924 mph) and an altitude of 55,000 feet, the conditions required for the aircraft to make future flights critical to its mission. The X-59 still has months of performance testing ahead, but after those are complete, NASA’s Quesst mission will fly the aircraft over several U.S. communities to collect data on public perception of the quiet sonic thump it will make at […]\n\nThe post NASA’s X-59 Reaches Speed, Altitude for Future Quiet Supersonic Flights appeared first on NASA Science.",
  "title": "NASA’s X-59 Reaches Speed, Altitude for Future Quiet Supersonic Flights"
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