What color is the sky?
398924
Interesting question. Our humans eyes only see blue, but in fact there is a myriad of colors in the sky projected by the sun's rays. I think the other colors are in the ultraviolet spectrum, but I'm not entirely sure
414202
(m)\n\nAs the sun begins to set, the light must travel farther through the atmosphere before it gets to you. More of the light is reflected and scattered. As less reaches you directly, the sun appears less bright. The color of the sun itself appears to change, first to orange and then to red. This is because even more of the short wavelength blues and greens are now scattered. Only the longer wavelengths are left in the direct beam that reaches your eyes\n\nThe sky around the setting sun may take on many colors. The most spectacular shows occur when the air contains many small particles of dust or water. These particles reflect light in all directions. Then, as some of the light heads towards you, different amounts of the shorter wavelength colors are scattered out. You see the longer wavelengths, and the sky appears red, pink or orange
665676
white:color of snow;blue:color of arctic oceans water and red :is color of communism.
916826
"The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.\n\nHowever, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue. "
80014
The nitrogen and the oxygen molecules in the air have the right dimensions to scatter blue light, but other colors pass through with little problem. So this causes the sky to look blue. \n\n(whitish sunlight)-(blue light scattered)= (yellowish sunlight)\n\nAs the sun sets (or rises), the sunlight passes through more air, and more blue light gets scatted, so the sunlight looks closer to orange or red\n\n(whitish sunlight)-(even more blue light scattered)=(red or orange sunlight)
249388
One of the most common questions on YA!\n\nA 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.\n\nSee the link below for full details.
274364
the sky appears blue becuase that is the color of ozone (O3), the gas that surrounds the earth.
1048733
The sky is blue partly because air scatters short-wavelength light in preference to longer wavelengths. \nWhere the sunlight is nearly tangent to the Earth's surface, the light's path through the atmosphere is so long that much of the blue and even yellow light is scattered out, leaving the sun rays and the clouds it illuminates red, at sunrise and sunset.\n\nso\n\nAn old weather predicting adage rhythmically states: \n\nRed sky at night, Sailors' delight.\nRed sky in morning, Sailors take warning. \n\nHumidity in the air is indicated by red skies at sunset-- red sky at night-- or, at sunrise-- red sky in morning. The forming raindrops scatter the short-wavelength blue light so that only the long-wavelength red light reaches the observer.
100945
If you want a very simple answer, here it is:\n\nThe white light from the sun is a mixture of all colours of the rainbow.\n\nA 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.
917666
Why is the sky blue?\n\nhttp://math.ucr.edu/home/baez/physics/General/BlueSky/blue_sky.html\n\nhttp://www.sciencemadesimple.com/sky_blue.html\n\nGood luck.\n\nKevin, Liverpool, England.
375813
Sky is blue because air is not perfectly transparent.  If you look through many miles of it, it gives a bluish color. [This is another way of saying that blue light is scattered by the atmosphere.] The only direction in which you can look through enough miles of air is upwards.  \n\nClouds are not always white.  Clouds can also turn grey or black and they are made out of the very same water molecules they were before.  It all has to do with how large the particles are, when the cloud is newly formed all the water droplets are very tiny and therefore all light is reflected, ie they look white.  As the tiny droplets glom together into larger pieces of airborne water, light can be absorbed more and more, and the cloud turns darker.
1088788
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.\n\nGo here for a detailed explanation and a cute little picture to show you! lol\n\nhttp://math.ucr.edu/home/baez/physics/General/BlueSky/blue_sky.html
9985
The color of the sky and water has to do with optical physics. Light is scattered by tiny particles like dust. Scientists use waves to describe how light moves through space. These light waves have different lengths (wavelengths). Each different wavelength corresponds to a different color of light. White light is made up of all the different colors and wavelengths of light. It turns out that short wavelengths of light are scattered more easily by particles and dust. Blue light is the shortest wavelength of light visible to the human eye, or the visible wavelength that scatters easiest.\n\nA simple answer is blue light is more easily scattered than the other colors of light.\n\nDuring a beautiful sunset the sun appears closer to the earth, and the light travels thru more dust and other particles that scatter light better. This allows for the more difficult wavelngths of light like orange and red light to be scattered.\n\nYeh.
28618
The sky is blue because the nitrogen in the air scatters the blue light out of sunlight. \n\nOur sun is a yellow star, so it has slightly yellow light, but it is still pretty close to white light.\n\nSunlight on earth is slightly yellower than it is in space because some of the blue light in sunlight gets scattered out by the presence of nitrogen in the air, making the sky appear blue. So \n\n(White light) - (Some Blue light) = (Yellow light)\n\nAs the sun sets, the sunlight travels through more air, and the nitrogen scatters out more blue light and the sun appears first orange, and then finally red.\n\nAs the sun starts to set:\n\n(White light) - (More Blue light) = (Orange light)\n\nand finally as the sun has almost set:\n\n(White light) - (Lots of Blue light) = (Red light)
178836
The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air.\n\nHowever, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue.\n\nAs you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.
522607
no the sky is no actually blue, have you noticed that at night you can see space? well thats because during the day the sun ray that come through our hemisphere are hitting against the massive amount of Ocean on our Earth, they do not reflect, but instead refract off the water molecules and transmit into the air, shooting all the way back up to our hemisphere, this gives us the sight of a blue sky.
1038358
I answer this question nearly every day.  *sigh*  :) :)\n\nThe blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by the air. \n\nHowever, much of the shorter wavelength light is absorbed by the gas molecules. The absorbed blue light is then radiated in different directions. It gets scattered all around the sky. Whichever direction you look, some of this scattered blue light reaches you. Since you see the blue light from everywhere overhead, the sky looks blue. \n\nAs you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.