Here's everything you need to know about how to see the first "blood moon" total lunar eclipse since 2022, and the only one ...

Titanium dioxide is an artificial coloring that can make foods bright white. Here’s what you need to know about common sources and safety concerns.

The U.S. Food and Drug Administration banned the dye known as Red 3 from the nation’s food supply in January, setting deadlines for stripping the brightly hued additive from candies and cough syrup, ...

University of Ferrara researchers in Italy have examined how European skin, eye and hair pigmentation evolved over the past ...

Rubies and emeralds have the colors they do because, like many substances, they absorb some colors of light. Most visible light, like sunlight, is composed of all the colors of the rainbow: red, ...

Do you still have candy hearts from Valentine’s Day that say “I love you”? Odds are, red dye No. 3 was used in the ...

The U.S. Food and Drug Administration banned Red Dye No. 3 Jan. 15, and food manufacturers are scrambling for safer alternatives. Ohio State researcher Monica Giusti has spent years studying natural ...

Picture a primordial Earth: a world of muted browns, grays and greens. Fast forward to today, and Earth teems with a ...

Get up to speed on gamma rays, the radiation responsible for creating the Red Hulk in Captain America: Brave New World.