Some periods in Earth's history are so different from our own that they may as well belong to another planet. Many people are ...

We subject a solid diamond to an intense flow of pure oxygen to observe the chemical reaction that transforms the stone into ...

A new breed of mystery.

If the stone blocks the salivary duct, the gland can become infected, a condition called sialadenitis. A doctor may be able to feel a salivary gland stone while examining a patient, or see one by ...

If you’re into crime dramas with a tough yet troubled lead, the Jesse Stone movies are a must-watch. Tom Selleck steps into the shoes of Jesse Stone, a former LA cop who takes on the role of police ...