Since the residents began lobbying for a noise barrier in the early 1990’s, the NJDOT repaved a stretch of I-295 with a type of asphalt that reduced the sound of cars and trucks rushing by and ...

During the XB-1's historic flight on Tuesday—its 12th test flight overall—the aircraft stayed supersonic for around four minutes before breaking the sound barrier two more times during the ...

After years of testing and refinement, a pilot flying the aerospace company’s XB-1 scale prototype finally broke the sound barrier during a livestream event—not once, not twice, but three times.