Researchers discover how molecules in ancient glass rearrange and recombine with minerals over centuries to form a patina of photonic crystals -- ordered arrangements of atoms that filter and reflect ...

Some 2,000 years ago in ancient Rome, glass vessels carrying wine or water, or perhaps an exotic perfumes, tumble from a table in a marketplace, and shatter to pieces on the street. As centuries ...

A fragment of the glass found within the skull of a college custodian in the Roman town of Herculaneum. Pier Paolo Petrone In 79 C.E., Mount Vesuvius erupted, burying the nearby ancient Roman city of ...

A fragment of organic glass formed from the brain of an individual in Herculaneum. Photo: Pier Paolo Petrone Nearly 2,000 years ago, Mount Vesuvius erupted, swallowing the nearby Roman towns of ...

In 79 C.E., Mount Vesuvius erupted, burying the nearby ancient Roman city of Pompeii and the smaller town of Herculaneum under deadly layers of volcanic ash, pumice and pyroclastic flows. But the ...