That light is actually made up of different colors, and the energy travels in waves. If we took a crystal prism and directed sunlight into it, we would see the separation of the colors in the rainbow.

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 ...

Smoke from wildfires has caused the sun to appear more vibrantly reddish orange to people nationwide over the years. Just ...

The color of the sky during the periods of heaviest haze is reminiscent of the colors you see at sunset. That’s because what is happening in the sky is somewhat similar to what happens when the ...

Called a cyanometer, it is a color wheel featuring 53 different colors for the observer to compare to the sky. A modern version of a cyanometer. (Image credit: Daniel Brown) Ozone blue at twilight ...

The dust in the cloud can be microscopic. Small particles can scatter blue light and transmits the red. Scattered light from the nebula is just like on Earth where smoke in the air produces red ...

While it's not uncommon to spot purple skies during sunsets or sunrises, we can't help but wonder what causes them. Here, we discuss why our eyes see different colors in the sky and which factors ...

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 ...