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 ...

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 ...

Hospitals have embraced ultraviolet (UV) lights as a cleaning tool for years, using large, industrial-grade machines to decontaminate rooms. Now, smaller versions of UV sanitation lights are available ...

Some researchers hope a decades-old technology might get its moment and be deployed in stores, restaurants and schools. By Kenneth Chang As society tries to rebound from the coronavirus pandemic, some ...

We first heard about the disinfecting powers of UV-C light (ultraviolet light with a wavelength between 200 and 280 nanometers — and the same light that causes sunburn and skin-cell mutation in humans ...

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, ...