Discover eight essential tips to identify whether your sunscreen is providing effective protection against harmful UV rays.

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

You may remember that amount of 22 degrees from a previous Hey Ray about halos. The hexagonal ice crystals that refract light to create Sun and Moon halos are present when Sun dogs are created ...

Cosmic rays are particles from outer space that travel across the universe. They can be made by the sun, by other stars exploding, and even black holes. They move extremely fast, nearly the speed of ...

Some protection isn't just for skin. Your eyes should be shielded from harmful for UVA rays, too. Too much sun can damage your eyes and the skin around them, and lead to Wrinkles around the eyes ...