Materials scientists can learn a lot about a sample material by shooting lasers at it. With nonlinear optical microscopy—a specialized imaging technique that looks for a change in the color of intense ...

A new dual-light microscope lets researchers observe micro- and nanoscale activity inside living cells without using dyes. The system captures both detailed structures and tiny moving particles at ...

With a new microscope that's as light as a penny, researchers can now observe broad swaths of the brain in action as mice move about and interact with their environments. As a mouse explores its ...

Light can do more than illuminate a material. In some cases, it can temporarily change how electrons move through it.

As a mouse explores its environment, millions of neurons across the brain fire in sync. To study only a small subsection at a time would be to miss the forest for the trees, but powerful microscopes ...