Some birds that live year round in big cities have eyes that are about 5% smaller. Researchers say bright lights may be the cause.

Light pollution at night may lower survival for two backyard bird species. But for one, the American robin, it's the opposite.

Researchers report the discovery of the highest-energy light ever observed from the sun.

A form of light therapy may offer a way to delay the occurrence of age-related diseases, including heart deterioration, a new study shows.

Using UV light on cantaloupe plants in the night shields them from powdery mildew, a damaging pathogen.

By shining a laser on a drop of blood, mucus, or wastewater, researchers can use the light reflecting back to positively identify bacteria.

“This kind of smart material lets us maintain the temperature in a building without huge amounts of energy.”

"As more plastic debris accumulates in the natural environment, there are increasing concerns about its adverse effects."

A new two-dimensional material could help you take super-sharp photos with your phone, even in low light, researchers say.

Getting outdoors, even in gloomy weather, may benefit your sleep, according to new research with college students.