The material on the covers of books from a French abbey was too hairy to have come from calves or other local mammals.

The books hail from Clairvaux Abbey, founded in 1115 by Cistercian monks in northern France, and its daughter monasteries. Some tomes are nearly 900 years old. Researchers had thought they were ...

Inside a New Mexico lab, researchers estimate there is five bottle caps worth of plastic in human brains. Now they are trying ...