T he sky isn't just blue by chance. I t takes all the colors of the rainbow for us to see it that way. I t happens because of ...

ST. LOUIS – The sky is always changing colors—from a bright blue on a clear day, to red and orange sunrises or sunsets, or multiple colors of a rainbow—there’s a lot going on that we don ...

Let's start back to the basics: why is the sky blue on a sunny day ... we would see the separation of the colors in the rainbow. Our eyes see the visible light spectrum of red, orange, yellow ...

So first things first: when we see a blue sky on a sunny day ... which we see as white but it includes all the colors of the rainbow. When sunlight passes through the air, atoms and molecules ...

You might think that explaining why the sky is blue would be kind of simple. But even a brief explanation of it requires a lot of science. The colors of everything you see are produced in ...

Beneath an evanescent blue sky day with the surrounding trees greening up ...

and sunny skies create the ideal conditions for rainbows to appear. "We have just the perfect setup," he explains, "with frequent showers that are enhanced by the mountains and plenty of blue sky ...