"We broke the sound barrier not once, not twice, but actually three times—each time without making an audible sonic boom,” Scholl said on Boom’s livestream. “It’s about how you fly the ...

Nasa also collected audio data on the jet while it was flying overhead. Analysis of this data showed that there was no sonic boom heard at ground level. “This image makes the invisible visible ...

NASA has released a new image showing the moment Boom Supersonic's XB-1 jet broke the sound barrier without producing an ...