Add Yahoo as a preferred source to see more of our stories on Google. Perhaps you have seen UV wands, UV LEDs and UV air purifiers advertised as silver bullets to protect against the coronavirus.

To disinfect a surface, you can illuminate it with a blast of ultraviolet (UV) light, which is bluer than the human eye can see. But to specifically inactivate SARS-CoV-2, the virus that causes ...

Hospitals have long used ultraviolet light to zap viruses, but the devices were too expensive for businesses and schools. Spurred by the pandemic, an unlikely trio started R-Zero to develop a ...

Physicists at the University of Colorado Boulder have demonstrated a new kind of vacuum ultraviolet laser that is 100 to 1,000 times more efficient than existing technologies of its kind. The ...

Ultraviolet perception is incredibly common in animals—just not in humans. Ed Yong dives into the history of how scientists saw the light. The following is an excerpt from An Immense World: How Animal ...

Doctors use UV light therapy to treat various common skin conditions, such as psoriasis and eczema. They consider it effective and safe, although it may cause short- and long-term side effects, ...

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 ...

Getting your Trinity Audio player ready... 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, ...