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NASA's Quiet Supersonic Jet Nears US City Flights

September 10, 2026

2 min read

Key Takeaways

NASA's X-59 supersonic jet completes 25th flight test.
The aircraft reached supersonic speeds for the first time in June.
X-59 is designed to break the sound barrier quietly.
Future tests will involve flying over populated US cities.

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Strategic Implications

The successful testing of the X-59 may indicate a significant step towards the return of commercial supersonic flights in the US, which could revolutionize air travel by reducing flight times. The quiet supersonic technology suggests a potential solution to the noise concerns that have limited supersonic flights over land, and could pave the way for future developments in commercial aviation.

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What Happened

Experimental X-59 Aircraft Reaches New Milestone In Testing

NASA’s experimental X-59 supersonic jet has completed its 25th flight test, reaching a top speed of over 920 mph and an altitude of 49,000 feet. The aircraft, built by Lockheed Martin, is designed to break the sound barrier quietly, without generating sonic booms. The successful testing of the X-59 brings it one step closer to flying over US cities, with future tests planned to verify its quiet supersonic capabilities. The X-59 is part of NASA’s Quesst mission, which aims to make commercial supersonic flights over land possible. This article was first reported by USA TODAY.

Source | Originally Published: September 9, 2026

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