Cleaner, more pure water backscatters light in the blue range, which makes it look blue. One famous example is Crater Lake in ...

Rubies and emeralds have the colors they do because, like many substances, they absorb some colors of light. Most visible light, like sunlight, is composed of all the colors of the rainbow: red, ...

Cleaner, more pure water backscatters light in the blue range, which makes it look blue. One famous example is Crater Lake in ...

A new study published by an international team of researchers led by Taro Matsuo, an astrophysicist at Nagoya University in Japan, argues that this evolutionary trend made sense 3 billion years when ...

Bright, fluorescent, or ultra-saturated colors rarely work with natural surroundings—or neighboring homes. “I can’t think of any situation where ...

Purple Earth Hypothesis suggests Earth was once a purple planet. Early microbes used retinal, not chlorophyll, for ...

Black plastic exterior trim used to be a telltale sign that you bought the cheapest model available. Automakers save money on unpainted parts as they don't have to be color-matche ...

The choice of a submarine's color might seem random, but it's far from that. There are several practical reasons to paint a ...

Skin cancer is the most common form of cancer worldwide, and an estimated 1 in 5 Americans develop it by age 70, the Skin ...