Why is the sky blue?

Answer 1

Rayleigh scattering (named after Lord Rayleigh) is the scattering of light, or other electromagnetic radiation, by particles much smaller than the wavelength of the light. It occurs when light travels in transparent solids and liquids, but is most prominently seen in gases. Rayleigh scattering of sunlight by the atmosphere is the main reason light from the sky is blue.

Answer 2

the sky is blue becaue 70% of the planets surface is covered with water, the light from the sun refltects from the waters surface an because the curvature of the earth the reflection widely enough to span the widest continents. when we look at the sky we are actually seeing light re-reflected off the water and ice in the upper atmosphere.
the sea is blue because of the reflection from the sky. wierd as it sounds, you can't have one without the other.
it's all to do with the vavelength generated when white light reflects off H2O.

Answer 3

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A clear cloudless day-time sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light. When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

The white light from the sun is a mixture of all colours of the rainbow. This was demonstrated by Isaac Newton, who used a prism to separate the different colours and so form a spectrum. The colours of light are distinguished by their different wavelengths. The visible part of the spectrum ranges from red light with a wavelength of about 720 nm, to violet with a wavelength of about 380 nm, with orange, yellow, green, blue and indigo between. The three different types of colour receptors in the retina of the human eye respond most strongly to red, green and blue wavelengths, giving us our colour vision.

Answer 4

The atmospheric gasses reflect more of the blue color of the visual spectrum of light, (red, orange, yellow, green, violet, indigo, blue,) with greater efficiency, scattering it widely and making it easily visible, while at the same time they absorbs the other colors. At dawn and dusk, when light is passing through the atmosphere at lower angles, reds and yellows and oranges are seen reflecting off the air-born dust and other particles suspended by weather conditions. During a rain shower all of the visual spectrum can be seen in the arc of a rainbow - the rain acts a prism and divides the white light into its seven respective visual parts.

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Answer 5

The air in the sky acts like a prism and scatters white light from the sun. Since blue scatters the farthest, it's the color we see.

Answer 6

the sun emits light and the wavelengths of blue light are smaller than the wavelengths of the other colors and when it hits dust and water in the atmosphere it reflects and that is why we see the blue sky - purple is a smaller wavelength than blue but we done see it since it is so much smaller
((shortened version))

Answer 7

Our planet looks blue when seen from space too .. it looks like heaven, but it's all how light interacts with our atmosphere ... and you already got many good answers for that.

Hope I helped.

Answer 8

cuz the dust in the air only reflects blue color from the sun

Answer 9

Because GOD looked at my eyes, and decided the entire world should be as mezmerized as he was!

Answer 10

water molecules in the air.