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 ...

The color wheel was first developed by English mathematician and physicist Sir Isaac Newton, who discovered that white light (what we perceive as colorless daylight) is composed of a spectrum of ...

Walk into any children's clothing store and you'll see it immediately: the great divide. Blues, greens, reds, and blacks flood the boys' section, while pink and purple dominate the girls' area. But is ...