Three elements commonly found at elevated levels in an Appalachian river polluted by runoff from mountaintop coal mining have distinctive chemistries that can be traced back to their source, according ...

Strontium is a soft, silvery metal with a number of uses: It blocks X-rays emitted by TV picture tubes; it causes paint to glow in the dark; and it is responsible for the brilliant reds in fireworks.

In North Dakota’s Bakken region, a boom of hydraulic fracturing, or fracking, has generated nearly 10,000 wells for unconventional oil and gas production. This increased production also has resulted ...

A group of researchers led by the Autonomous University of Querétaro in Mexico have proposed for the first time to fabricate thin-film solar cells relying on an absorber made of silver, barium, ...