The plan is for the X-59 will take off for the first time this year.
Mandatory Credit:	Senior Airman Christine Groening/NASA

The plan is for the X-59 will take off for the first time this year.
Mandatory Credit: Senior Airman Christine Groening/NASA

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X-59: NASA’s ‘quiet’ supersonic plane revealed

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.