An MRI image of the same hand before knuckle cracking (left) and after (right), showing the void (dark spot) in the joint fluid that forms when the knuckles are cracked. An MRI image of the same hand ...

There aren’t any awards to be won for solving science’s minor mysteries—why yawning is contagious, why puppies make us melt—but that doesn’t mean we don’t want the answers anyway. Add to those ...

SACRAMENTO, Calif. — Snap, crackle, pop. If you're a knuckle cracker, that familiar sound when you consciously pop your joints is like comfort food. You know it might not be so healthy for your hands ...

Some people like the sound of knuckle-cracking and others loathe it, but for years there has been disagreement among scientists about what actually causes it. Researchers said on Wednesday they have ...

What do you get when you combine the "Wayne Gretzky of knuckle cracking" with a magnetic resonance imaging (MRI) machine? The answer to a very old question, it turns out. By using MRI to video-record ...