The infant universe's population of huge black holes could owe itself to ultralight dark matter, scientists say.

It's the time of year we start talking more about sunburn risks, which is measured through the UV index. In order to ...

Here are five facts that will help you be safer in the sun. UV rays are not all the same. When we talk about sun exposure, what we really mean is exposure to ultraviolet (UV) radiation. UV-A and UV-B ...

UV-C cannot penetrate the dead layer of human skin; however, it can produce corneal burn. UV-C kills bacteria and it is used in germicidal lamps. 2. Common sources of UV radiation in a research ...