Visible light travels in electromagnetic waves, which we see as the colors of the rainbow. Different colors have different wavelengths of light. Violet and blue have the shortest wavelengths, whereas ...

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’t always ...

The color of the sky is determined by the angle of the sun in the sky (how much atmosphere the light needs to pass through) and how the light is scattered by air molecules in the atmosphere. Since ...