It’s no secret that the American holiday calendar is thoroughly color-coded. The Fourth of July is red, white and blue, for obvious reasons. Halloween has pumpkin orange, and the Thanksgiving table ...

When you look up at the blue sky overhead or gaze across the seemingly endless expanse of a blue ocean, you might think that the color blue is common in nature. But among all the hues found in rocks, ...

One of the most unusual sights in the world is a glacier. Glaciers are found in mountain locations and in the coldest regions on earth. They are often a surprising and beautiful blue color. But snow ...