It was ubiquitous in the ancient world. Then, we just... forgot how to make it.

Scientists at Washington State University not only discovered how to recreate the color known as "Egyptian Blue," they also ...

Not only does it deter crime, it also allows residents to flag down an officer that they might not otherwise know is in the ...

Kansas City police may activate blue lights in patrol cars while officers are inside. City leaders say it could boost ...

It is not the red of Ferraris or stop signs, but for Subramanian, the moon-inspired magenta represents a huge step forward ...

Japanese traffic lights are blue instead of the green Americans know, but the reasoning involves some complex linguistic ...

Tis the season for decorating with pastels, and shades of light blue bring a cool, calming quality evocative of summer skies ...

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