What color is the sky?

Answer 1

The sky on Earth is said to be blue, but it is not truly blue in the typical sense. We think of a surface as having a given color because it reflects light of that color, and absorbs light of other wavelengths. But if you took any part of the atmosphere that we see as the sky, it would not be blue at all, but transparent.

This is because the sky's blue color is caused by a natural phenomenon called Rayleigh scattering, in which light of shorter wavelengths is scattered by gaseous particles, which in this case would be the atmosphere. Violet and blue are the two shortest wavelengths of visible light, so they are scattered very effectively, seeming to fill the sky. The human eye is better at seeing blue than violet, so the sky looks blue. But there's nothing up there that is actually blue in the sense usually meant when discussing visible light.

Answer 2

David has it right, but I just want to explain this a little more

The light coming from the sun is white, which is to say all colors. As the light hit the atmosphere, scattering begins (as David said, it is called Rayleigh scattering). Now, lets say you are a molecule in the upper atmosphere. A photon of blue light hit a molecule and it scatters off in your direction. When you see this photon, which direction do you see it from? The sun, no! You see it from the direction of the first molecule. This is what happens billions of time before the light comes to the surface.

Blue and violet light are scattered more easily than red and orange, however, there is more blue light than violet light coming from the sun. Also, your senses are better at perievning blue than violet, so you see the entire sky as blue.

Answer 3

The sky does not have a color. Just like how water is translucent but as it become more dense in both depth and volume , it appears to be blue. When all things are increased in concentration or volume, it becomes a darker pigment.

Answer 4

its clear, the sky gets its color from the reflection of the light from the sun

Answer 5

to put it simply, sky blue in the morning, sky blue in the afternoon, orange and pink at sunset, dark blue at night

Answer 6

clear but it gets its color from the reflection of light.

Answer 7

Blue, gray white, black, red, yellow, orange. depends on where you live.

Answer 8

it is blue because of the O3 in the air

Answer 9

POLLUTED BLUE