Hawaii’s sunshine, short rain showers and clean air together create some of the planet's best conditions for viewing rainbows ...

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

Ever wonder why the sky is blue, vs. say red, orange or purple? An effect called Rayleigh Scattering is part of the reason we see only blue, despite it all starting with a rainbow of colors.

The brighter the sun, the clearer the rainbow. Look for them when it is ... archipelago's trade winds bring many small showers with enough blue sky between them for the sun to shine through.

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.