why is the sky blue?

Answer 1

it is not, its black, its only refection of light

Answer 2

The Sky is blue because high in the ionosphere, light from the sun is reflected and distorted by the hydrogen molecules. The reflected light is seen as blue. That's why when the sun rises or sets the sky looks red or orange etc. The angle of the light is different and so it is distorted differently!

Answer 3

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.
However, 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.

Answer 4

It's because the atmosphere is a colloid. A system of small solid particles suspended in a set of gases.

The diffraction of sunlight by these particles is called the Tyndall Effect and is what causes the blue colour.

When the angle of the sun's ray changes later in the evening the diffraction pattern of the light off the particles causes the colour of the sunsets (orange/red)

Answer 5

Scattering of light is the answer - Also called as the "Raman Effect" (Nobel laureaute Sir C V Raman) means we see the color of an object as what part of the spectrum (VIBGYOR) it least absorbs. Sky absorbs all other colors but scatters away blue - hence Sky is blue

Answer 6

actually the sky isn't blue at all! it's black...but we see it blue because the light reflects in the gases, in the surrounding atmosphere and finally in the air and it becomes blue :D...

Anyway depending on the temperature amount of light and pollution the color of the sky varies from dark blue to clear blue..(i guess)

Answer 7

I asked this question a few months ago to a fellow class mate and he sed it was to do with the spectrum/ rainbow. Indigo reflects the most and is reflected as the blue of the sky.I think!

Answer 8

the sky isn't blue. its comletely dark. we have air on earth. air has a tendency to cange colour. i.e. the night sky appears blue to us . on the other hand it appears dark black in the space. its a kind of thing like the sunlight appearing white but actually it isn't.

Answer 9

Do ya know about the Ozone Layer? Ozone is blue, thus the sky seems blue.But without Ozone, it would look like space I think.

Answer 10

It isn't today here in Virginia, today it is full of clouds, and at night it is black. But that isn't the answer you want. The real answer is light refraction through the atmosphere. The brown color on the horizon is polution unless you are in some place like Maine.

Answer 11

The gases in the atmosphere shine blue when the sun's ray's hit them