Scientists have long known that ultraviolet light can kill pathogens on surfaces and in air and water. UV robots are used to disinfect empty hospital rooms, buses and trains; UV bulbs in HVAC systems ...

An invisible band of radiation with wavelengths from 400 to 10 nm, ultraviolet (UV) light starts at the end of visible light and ends at the beginning of X-rays. The primary source of ultraviolet ...

A chance encounter in the forests of Bayfield County, Wisconsin, has led scientists to a startling realization: As Jon Martin, a forestry professor at the state’s Northland College, discovered after ...

Pulsed ultraviolet light can be an effective alternative to some of the antimicrobial technologies now used by the poultry industry to kill pathogens on eggshells, according to researchers, who ...

When you get right down to it, the sun is a critical component for most forms of life on the planet. Without sunlight, plants can't make the food they need to grow and thrive. Without plants, the ...

Chameleons don't just change the color of their skin—scientists have discovered their bones can glow fluorescent under ultraviolet light, creating intricate luminous patterns. The ability, it turns ...

OK, it's not really a black light. It's better to call it what it is: ultraviolet light. Let's start with a quick overview of light. Of course, light is an electromagnetic wave (oscillating electric ...

Tanning beds are not safe for people with lupus. The bulbs in tanning beds produce ultraviolet light rays. It is the ultraviolet light rays that cause the skin to tan. The majority of people with ...

Lauren Murphy is a writer and environmentalist based in the Pacific Northwest. She holds a degree in Environmental Sciences from Western Washington University. Each type of light bulb is recycled ...