Your blood is also red because of a mixture of iron and oxygen in a molecule called hemoglobin. So in a way, the ancient connection between the planet Mars and blood wasn’t completely wrong. Rust, ...

Bright and contrasting colors, such as neon orange and bright yellow, were found to be the most visible in all types of water. These colors provide a stark contrast against the natural blue and ...

If we confine ourselves to the visible portion of the electromagnetic spectrum, and ignore the brain's role in color perception (see: recent blue/black vs gold/white dress controversy) an object ...

Color images with light beyond the visible spectrum have even revealed dark matter around galaxies, such as in the bullet cluster. [ Related: This is what Uranus and Neptune may really look like] ...

The human eye is able to see millions of colors, but thanks to a feature that humans don't have, hummingbirds are able to see millions more colors, a newly published study says.

Quick experiments can help you answer the eternal question of whether to wear black or white on hot summer days. Turns out, it's complicated.

Humans are able to see a small portion of the visible light spectrum and some other colors that are not part of the spectrum, such as purple –­ which is made up of red and yellow –­ or green ...