It might seem like a simple question. But the science behind a blue sky isn't that easy. For starters, it involves something ...

You may have noticed these as a tiny rainbow spot in the sky. I get questions about these ... Typically, the colors go from red closest to the Sun, to blue on the outside of the Sun dog.

T he sky isn't just blue by chance ... eyes are more sensitive to it and the sun emits more blue than violet energy. Sunlight comes to Earth in a rainbow of colors. We also see the Rayleigh ...

The sky isn't just blue by chance. It takes all the colors of the rainbow for us to see it that ... our eyes are more sensitive to it and the sun emits more blue than violet energy.