A new study reveals that spontaneous emission, a key phenomenon in the interaction between light and atoms, manifests in a ...

A spinel-type sulfide semiconductor that can emit light from violet to orange at room temperature has been developed by ...

For centuries, people have described strange blue balls of light floating around in marshes, wetlands, and even cemeteries.

Researchers have discovered “a natural ignition mechanism” that may explain the origin of the eerie blue flames.