Now in paperback: a vivid exploration of this uniquely captivating color, which behaves like no other wavelength Blue is the most widely beloved color—but in

What is it about the color blue? Blue is our favorite color globally—the darling of artists since the time of the pharaohs. So it’s startling to turn to the

For centuries, dyed fabrics ranked among the most expensive objects of the ancient Mediterranean world, fetching up to 20 times their weight in gold. Huge fortu

A lovely and tranquil celebration of nature The sun has set, the day has ended, but the night hasn't quite arrived yet. This magical twilight is known as the bl

We live in a world of optical marvels - from the commonplace but beautiful rainbow, to the rare and eerie superior mirage. But how many of us really understand