A single green laser, a glass bead smaller than a bacterium and a lab in Austria are helping you see lightning in a new way. Scientists have found a way to watch an object build electric charge in ...

A tiny, levitated bead is at the core of an unprecedentedly bright laser that shoots particles of sound instead of light. Just as a ray of light is made up of many particles called photons, sound ...

Researchers have found a way to convert nanoparticle-coated microscopic beads into lasers smaller than red blood cells. These microlasers, which convert infrared light into light at higher frequencies ...