THE blue color of the sky on a clear day is familiar to all. And yet how many have considered the source of this delicate mantle of azure which Nature spreads over the dome of the heavens? The ...

Add Yahoo as a preferred source to see more of our stories on Google. Because of its popularity, it’s no surprise that narrowing down the best blue paint colors isn’t the easiest task. Not to mention, ...

If you said blue, you're probably not alone. A few years ago, the BBC reported that, after looking at non-scientific Crayola ...

Tiny external structures in the wax coating of blueberries give them their blue color, researchers at the University of Bristol can reveal. This applies to a lot of fruits that are the same color ...

Every other Friday on Morning Edition, the Outside/In team answers a question from a listener about the natural world. For the past few weeks, we’ve been tackling queries on the theme of “blue.” What ...

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