Marisa Garshick, MD, is a board-certified dermatologist and an assistant clinical professor of dermatology at Cornell-New York Presbyterian Medical Center. Jan Arnold is the co-founder and style ...

The sun's ultraviolet (UV) rays can cause permanent damage to the skin and are also the leading cause of skin cancer. Understanding the UV index and its levels in your area is essential when spending ...

In this short science clip, I show how ordinary peanut butter can actually glow when you shine violet UV light on it. I ...

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 ...