Some may already be familiar with the sonic boom that accompanies a break to the sound barrier, but when and why would military aircraft be allowed to do so?

MATTYDALE, N.Y. — On your drive along I-81, you have probably seen the new sound barriers. Many are concrete, ... They are doing road work—finish the road work.

The sound barrier was first broken on Oct. 14, 1947, according to the U.S. Air Force. That's when Capt. Chuck Yeager and the Bell X-1 rocket-propelled aircraft broke the sound barrier.

Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for its first time with a test flight in Mojave, California, on Tuesday.

Boom Supersonic's XB-1 jet broke the sound barrier for the first time on Monday as the American company seeks to deliver the world's faster airliner capable of carrying passengers between New York ...

Only one neighborhood will get sound barrier with Kilpatrick Turnpike widening. ... The three-mile section between Eastern Avenue and Interstate 35 is part of the original toll road that opened in ...

The noise barrier would border the rear yards of homes on West Church Road in the Long Acres neighborhood that back up to the highway. The project aims to reduce noise levels in the Long Acres ...