Butterfly wings get their color in ways that almost feel impossible. Up close, each wing is made of countless tiny scales that either hold pigment or manipulate light. The oranges, reds, and browns ...

Smiley faces, chrome colors, and airbrushed finishes make one thing clear when it comes to manicures: the '90s and 2000s are back in full swing. The recent resurgence of butterfly nails is even more ...

The iridescent, silvery-blue hues seen on peacock feathers and butterfly wings aren't like most colors; they are created from nanoparticles that are smaller than wavelengths of visible light. And this ...