A much touted emerging treatment, red light therapy, lives up to the hype for a lot of health claims, but certainly not ...

1. There are currently 44 active national emergencies in the U.S., with one going all the way back to 1979. 2. Approximately 430 quintillion joules of energy from the Sun hit the Earth every hour.

The colors of rubies and emeralds are so striking that they define shades of red and green - ruby red and emerald green. But ...

Discover where black falls on the color spectrum and how human perception of colors is subjective and context-dependent in this insightful article.

Complementary colors live on opposite sides of the color wheel. Imagine red and green, blue and orange, or yellow and purple. Or move a half step over on the wheel, and combine a yellow-green color ...

Mantis shrimp have remarkable colour vision. They have as many as 16 types of photoreceptor cone, compared with the three ...

Beauty and skin care trends may come and go, but there are a few that have proven themselves to be effective and stand the ...

If Earth had no atmosphere—like the Moon—there would be no scattering, and the sky would remain black, even in daylight ...