Ultraviolet has very short and energetic wavelengths that are shorter than violet on the visible spectrum. But can people see UV? When you purchase through links on our site, we may earn an affiliate ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. While ultraviolet (UV) light is harmful for human skin, it could be ...

Gel manicures have risen in popularity because they dry fast and last long. However, concerns have surfaced regarding the UV light used to cure the polish, prompting some nail salons to offer UV ...

The UV index measures the intensity of skin-damaging ultraviolet radiation at the Earth's surface. The UV index ranges from 0 to 11-plus, with higher values indicating greater risk of sunburn and skin ...

Some animals have fur that protects their skin. But humans use sunscreen when they go outside. I asked my friend Michael Smerdon how it works. He’s a biochemist at Washington State University. He told ...

Animals with ultraviolet color patterns can be found all over nature. Here’s what we know about what purpose these patterns serve. Scorpions are one of many animals that appear to glow under ...