Think of your skin as a diary that keeps track of the days that you skipped sunscreen. Whenever you stepped out without sun ...

A lot of public health messages focus on the dangers of overexposure to the sun's rays. But while it's true that we have to ...

Cosmic rays coming from outside the Solar System bring these particles closer to the Sun, where they experience changes ...

Protecting your eyes from the sun is important Long-term UV exposure can often increase a person’s risk of serious eye ...

You may remember that amount of 22 degrees from a previous Hey Ray about halos ... Those tiny ice crystals refract the Sun's light to make the rainbow-effect happen. Typically, the colors go ...