Ancient Roman glass fragments, transformed over centuries, are providing modern scientists with a glimpse into the past and potential future technological applications. These fragments, buried for millennia, underwent molecular changes that resulted in photonic crystals, which are now used in advanced technology.

Researchers Omenetto and Guidetti, fascinated by this natural nanofabrication, conducted a detailed study revealing the glass’s complex structural changes. Their findings not only shed light on ancient global trade and Rome’s architectural evolution but also suggest potential new methods for creating optic materials.