A new discovery has unraveled why we sometimes see colors that aren't there. The phenomenon of "color afterimages" is when you see illusory—or false—colors after staring at real colors for a longer ...

Subtly different brain areas light up in response to viewing certain colors, a new study suggests. Ylanite Koppens via Pexels Have you ever argued with someone over the color of an object? “No, that ...