Fire rainbows, a phenomenon that captivates both the eye and the imagination, are a rare sight in the sky. When these ...

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 something called the Rayleigh effect, or Rayleigh scattering ...

Watch: This photographer's footage of a double rainbow, as seen from a trail in the Golden Gate National Recreation Area, will blow you away.

Have you ever seen a rainbow in the sky? Rainbows happen when sunlight passes through raindrops in the sky. When this happens, light becomes separated into a rainbow of colors—red, orange ...

During the total lunar eclipse early Friday morning, the moon will still be visible in the night sky, but its color will change. Here's when and how to see the Blood Moon.