Popular Mechanics reports that purple is a “pigment of your imagination”: The human eye doesn’t actually see purple.

Purple is a combination of wavelengths from opposite extremes of the spectrum, which technically deosn’t make any sense, but ...

Melanin also helps determine the color of your hair and your skin. The more melanin you have in your skin or hair, the darker ...

A new surgical procedure to permanently change eye color is gaining traction in the U.S. But many ophthalmologists fear ...