https://www.space.com/space-exploration/nasas-sci-fi-looking-x-59-feels-the-supersonic-wind-blow-in-test-tunnel-space-photo-of-the-day-for-july-16-2025
NASA and the Japanese Aerospace Exploration Agency (JAXA) tested a model of the X-59 experimental aircraft in a supersonic wind tunnel to measure the noise...
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https://www.imperial.ac.uk/news/248577/supersonic-wind-tunnel-facility-launched-imperial/
The new Hiru N Patel Supersonic Wind Tunnel has opened to allow for studies of airflow at speeds of up to five times the speed of sound.
supersonic wind tunnelfacilitylaunchedimperialnews