Sounds like a bright idea. Scientists have received approval to soon test whether “dimming” the light from the sun will ...

We are coming into the prime season for increasingly powerful UV radiation from prolonged exposure to the sun.

The sun is not a mirror, but it is a lens ... You also get amplification of brightness because it combines a bunch of light ...

You may remember that amount of 22 degrees from a previous Hey Ray about halos. The hexagonal ice crystals that refract light ...

“As we age, and also in response to ultraviolet radiation, the amount of collagen and elastins decreases in our skin,” explains Tewari. “Collagen and elastins form the support network of our skin, and ...

A shadow shows that light travels in straight lines. An eclipse of the Sun, or Solar Eclipse, occurs when a new Moon passes directly between the Sun and the Earth, blocking out the Sun's rays and ...

The ultimate purpose of PUNCH is to use its four instruments — three wide-field imagers (WFI) and a near-field imager (NFI) — to isolate features found within the solar wind. This is because one of ...

"The gamma-ray burst traveled through intergalactic space at the speed of light for eleven billion years, during which time the Sun and the planets were born." — Timothy Ferris, in the film ...

Researchers have discovered that the sun's ultraviolet rays can cause potentially fatal ... rating for the level of protection against UVB light. A little-known star system - normally printed ...

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 ...