Why is the sky blue?

Answer 1

Molecules of certain atmospheric gasses scatter some sunlight. The scattering process involves preferentially the short wavelengths of light, as are the molecules. Therefore, the light scattered by the atmosphere, the sky light, is blue. When the scattering particles are not small in comparison with the wavelengths, such as dust particles in the air, including condensation nuclei, the scattering involves more of the longer wavelengths. Because there is always some dust in the air, the sky light also contains longer wavelengths such as green and red, although the color mixture still looks blue. The more numerous and larger the dust particles are, the more of the other colors are mixed with the blue, and the paler the blue becomes. For this reason, the sky is rarely seen as deeply blue in industrial areas as in rural ones. Also in humid air masses, in which condensation nuclei take on water vapor from the air, the sky is paler blue than in dry air masses.

Answer 2

Why Is The Sky Blue?
The sun's rays hit the
Earth's
atmosphere, where the light is scattered by nitrogen and oxygen molecules in the air. The blue wavelength of this light is affected more than the red and green wavelengths, causing the surrounding air to appear blue. At sunset, the sun's light passes farther through the atmosphere, deflecting and decreasing the blue in the air. Scattering by dust particles and pollution in the air causes the sunset to appear red.

Check out my picture I took...the sky appears blue and sunset colors, dust and all that sort of thing!
Peace and blessing!!

Answer 3

The sky is blue because molecules in the air scatter blue light. Much like shining a light thru a prism to make a rainbow.

Answer 4

OK umm the sky is blue because tiny air particles are reflected from the sun causing a blue-ish color

Answer 5

Blue light is the most easily scattered. When the sunlight hits the atmosphere, blue bounces away as it hits all the different molecules. The rest of the light comes straight through, but the blue is bounced around until you can't see the source anymore.

Answer 6

The sky is actually white but, from the reflection from the clouds, grass, and ect. It looks like it turns the sky blue.

Answer 7

http://optics.kulgun.net/Blue-Sky/

Answer 8

Actually the sky is not blue....

The atmosphere is see-though, like you can see at night. During the day, scattered light from the sun is much brighter than the background stars, so you can't see them (but you can see Venus if you know where to look). So transparent.

Answer 9

Sunlight is refracted by earth's atmosphere.
The human eye can only percieve the blue portion of the spectrum from this refracted sunlight.

Answer 10

Rev is right. And the term for it is: The Tyndall Effect. I believe this is also how peacocks get their blue looking feathers.