Why Is The Sky Blue?

By jamie

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Go outside in the daytime when the weather is good and you will see something that is regularly witnessed the world over a blue sky. It is not always blue, of course, but still a lot of people are prompted to answer the question of how the sky gets its blue color.

The answer to the question lies with how light works and how it is affected by the environment around it. It can result in some rather dramatic effects, and here is a brief explanation of how it all works and, of course, why the sky has the blue color that it does.

1. Light Waves

Light is fascinating. We know that light is the fastest thing in the universe; nothing can travel faster. It travels at 299,792 kilometers every second and it takes just over 8 minutes for the light from the sun to reach our planet. Light also travels in waves, just like water does. The wavelength of light helps us to identify different colors. The shorter the wavelength, the closer we come to ultraviolet and the longer the wavelength, the closer we come to infrared. Our eyes cannot detect ultraviolet or infrared, and can only detect everything else in between.

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