A new tool that uses lasers to measure glaciers is small enough to fit in a backpack and be carried up steep mountains.

New findings on light and mood could improve treatment for seasonal affective disorder and depression, say researchers.

Artificial light in cities can lengthen plants' active season, research finds. That news could have important implications for people with allergies.

Visible light activates nanoscale drills that could eventually fight drug-resistant bacteria.

A laryngoscope with a wireless camera might make intubation simpler and safer. Its student designers say it could cost as little as $200.

Researchers have developed a way to use infrared light to flip diferent brain circuits on and off in mouse brains. It can control mice from 3 feet away.

A color-coded test for new nanoparticles can quickly identify which formulations will effectively and successfuly deliver the medicine they carry.

As the days get shorter and we're exposed to less daylight, an expert explains light's role in seasonal affective disorder and how to lessen its symptoms.

Researchers have modified a microbe so it can make a biofuel using only three ingredients: carbon dioxide, solar panel-generated electricity, and light.

"Our new paper defines how light interacts with microscale concave interfaces." The material may be useful for autonomous vehicles.