Diving into color reproduction -- what ultraviolet looks like, how to improve the color on your monitor without buying a new one, and the all-around awesomeness of the Mark I Eyeball.

The study examined 110 snake species from regions ranging from Colorado to Peru, many of which have visual systems that can perceive UV color in ways humans can't. Crowell and colleagues took ...

It was bathed in ultraviolet—literally “beyond violet” in Latin. Ultraviolet (or UV) light has wavelengths ranging from 10 to 400 nanometers. It is largely invisible to humans, but must be “apparent ...

"The UV index represents the amount of skin-damaging UV radiation reaching the earth’s surface at any instant of time," the U.S. Environmental Protection Agency says in its UV Index Guide.

The UV Index is a scale that helps illustrate how strong the sun's radiation is. (WDBJ Weather) The index uses a scale from 0 (low risk) to 11+ (very high risk). The forecast must consider cloud ...

3-5 UV value (moderate): A UV Index reading of 3 to 5 means moderate risk of harm from unprotected sun exposure. Take precautions, such as covering up, wearing a hat and sunglasses, if you will be ...

Darker colors, such as blue or black, absorb more UV rays than lighter shades like whites and pastels. This means the UV rays are less likely to reach your skin. But bright colors, like red, can also ...