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 ...

Many of us are used to seeing rainbows after a storm passes, a sure sign of calm conditions on the way. So, why is it that most rainbows occur later in the day as opposed to early in the morning? That ...

Every single part of that rainbow is being developed by one particular raindrop. Blue Sky Science is a collaboration of the Wisconsin State Journal and the Morgridge Institute for Research.

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 ...

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 ...

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