Ever wonder why the sky is blue, vs. say red, orange or purple? An effect called Rayleigh Scattering is part of the reason we ...

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

T he sky isn't just blue by chance. I t takes all the colors of the rainbow for us to see it ... when the sun is lower on the horizon. Red, orange and yellow have longer wavelengths, which ...