If you've heard a sonic boom recently, you probably remember it. The loud, explosion-like bang -- caused by a plane flying faster than the speed of sound -- can be startling, and even crack windows.
https://ift.tt/Bc9vMor X-59: NASA's quest to build a 'quiet' supersonic plane CNN.com - RSS Channel - HP Hero
Home Breaking News X-59: NASA's quest to build a 'quiet' supersonic plane
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