Many people’s knees squeak, crack, or crackle, a phenomenon known as crepitus. Most of the time, it’s no big deal at all. But a loud popping sound accompanied by pain and swelling indicates an injury.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. INDIANAPOLIS, Ind. — Have you heard a loud ...

Have you been hearing loud pops around your home lately? The temperature swings we’ve been having across the Pittsburgh area have been leading to a unique phenomena called frost or ice quakes. Rain or ...

CHICAGO (CBS) -- We've been hearing about frost quakes across Chicago Monday – a loud bang, a jolt, shaking ground, something that seems like a mini-earthquake. We've experienced subzero temperatures ...

Prolonged exposure to loud noise alters how the brain processes speech, potentially increasing the difficulty in distinguishing speech sounds, according to neuroscientists. Exposure to intensely loud ...

Researchers at Rensselaer have discovered a surprising new property of single-walled carbon nanotubes (SWCN). When exposed to a conventional photographic flash, the nanotubes emit a loud pop and then ...