Why Does The Sky Turn Colors During Sunset?

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By By Steve Pool

SEATTLE - When the sun is low in the horizon, the sunlight has to travel through more particles in the atmosphere.

You see sunlight as white, but it's made up as a combination of the colors of the spectrum.

Those particles will tend to scatter away the blue and green light part of the sunlight's spectrum, leaving behind the more-difficult-to-scatter red and

orange colors. That's because red and orange lights has a longer wavelength than the blue and greens, making it less affected by particles.

Pollution, ash or smoke can enhance the colors as there's more particles to scatter away the shorter-wavelength part of the spectrum.

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Left our tree up and redecorated for the Superbowl, GO HAWKS!
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Photo taken on 01-20-2015. My brother and I decided to get out of the house and go stretch our legs at picnic Park in Seattle and we were sitting on the shore watching the sun start to set and we saw the Seahawks logo appear over the Puget Sound and I started photographing it.