White light can be blinding, cold, unforgiving. Our physical reality often finds it too much as well, splitting it apart any chance it gets. Plants are green because such wavelengths of light help ...

There’s no brown in the rainbow. The color map reveals that brown is actually dark yellow. (This can be confirmed by projecting a spot of yellow light on a screen in a dark room. If you turn ...

The sky is always changing colors—from a bright blue on a clear day, to red and orange sunrises or sunsets, or multiple colors of a rainbow—there’s a lot going on that we don’t always think about. Why ...

That’s because every color in a rainbow corresponds to a single wavelength of light. Violet, for example, exists on the far end of the visible spectrum and has its own wavelength. Surely ...

When we think of color in the night sky, we often think of beautiful images of galaxies and nebulae. Unfortunately, most of the time, their faint, diffuse light shows no color to our human eyes.

For years, scientists have fabricated small, high-quality lasers that generate red and blue light. However ... Other potential applications are in full-color laser projection displays and laser ...