The focus now turns to conversion, highlighting any gaps that still exist in the natural rainbow, like stable natural blues.

From brilliant blues to fiery reds, discover how nature crafts diamonds in every color, and why some shades are rarer than ...

We’ve shared a lot of red flags and “don’ts,” but our experts have plenty of “do’s” for picking the best type of fish next ...

Laid out like an orchestra in a quiet gallery room, 40 colorful gems have one of the planet’s most distinguished conductors: a red diamond, 2.33 of the rarest carats in the world, shining like a ...

This is the first time Perry has developed product, playing a core part in the testing and refinement process.

The U.S. Food and Drug Administration is banning a synthetic food dye that gives foods and drinks a pop of bright red color.

Ask the publishers to restore access to 500,000+ books. An icon used to represent a menu that can be toggled by interacting with this icon. A line drawing of the Internet Archive headquarters building ...

Unused paints are generally rare finds for archaeologists — but not at Pompeii. Take a look at “almost the entire palette of ...

The Princess of Wales may be slowly returning to royal duties, but it seems Kate Middleton has taken a liking to a certain shade of red for her public engagements ... Kate Middleton has also worn the ...

This week's full moon will come with a special treat – a total lunar eclipse, which will turn the moon a spooky blood red color. While the eclipse will last from 1:47 a.m. EDT to 4:10 a.m. EDT ...