why is the sky blue?

Answer 1

Light coming from the sun is what's called "white light" White light contains all the colors of the rainbow. When it enters Earth's atmosphere this light is separated into its individual colors by chemical elements in the atmosphere and scattered across the sky. Nitrogen is the most abundant element in our atmosphere, and that element scatters the color blue across our sky more than the other colors. In space, there is no atmosphere to separate colors from the white light and space looks black.

Answer 2

Light comes in from the sun and some photons bounce off the molecules of the air. More blue light bounces off the molecules than other colours. so the sky is bright and it looks a bit blue. Sorta like saying that air is slightly blue.
Since there is more air in the way at sunset, more blue has been bounced away already making the sky appear orange and red. Simple really.

Answer 3

the small particles in the atmosphere can only deflect the smaller wavelengths of light down to our eyes. So the shorter wavelengths of blue are deflected down to our eyes. The red and orange continue on through with little deflection. So the only color we see when we look at a clear sky is blue. The same principle is why sunsets are red/orange. The sunlight is at a very shallow angle so by the time the light as made it through all of the atmosphere to get to us, the only light that hasnt been deflected is the red/orange

Answer 4

Because the earth's atmosphere refracts light and makes the sky appear blue.

Answer 5

I believe it's because of the sun.

Answer 6

Purple was already taken.