Why archaeologists are increasingly leaving historic sites untouched until we have less destructive technologies for studying ...

A unique, dark-colored glass found inside the skull of a Roman killed by the eruption of Mount Vesuvius is his brain—cooked into a fossil by an ash cloud. This is the horrific revelation of an ...

A rare sequence of heating and cooling triggered the chain of chemical reactions that turn organic material into glass.

Excavations have found that the brain of what seems to be a human male contained dark glass formed during the eruption of Mount Vesuvius in 79 CE. The effect can't be explained by lava temperatures ...