What is the colour of sky?

clear/no color

clear/no color

If it were actually colored blue then looking through it at the moon would cause the moon to look blue. like if you have a piece of blue glass and you look through it at stuff everything looks blue.

Technically it's colorless. You just see blue because the light refracts through the particles of air. But honestly, you're not wrong to say the sky is colored blue. It's just nitpicking semantics to question that.

If it were actually colored blue then looking through it at the moon would cause the moon to look blue. like if you have a piece of blue glass and you look through it at stuff everything looks blue.

Technically it's colorless. You just see blue because the light refracts through the particles of air. But honestly, you're not wrong to say the sky is colored blue. It's just nitpicking semantics to question that.

Strictly speaking its a Black color. Actually the Q should be What is the color of the space. If you look at the space (or sky in your words) it looks like a blue color. But the thing is it is because of the refraction of light rays in the atmosphere.

The sky appears to be blue as perceived by the human eye. This is because the light from the sky is a result of the sunlight scattering. The sky can change and appear lots of colors, such as red, orange, yellow, pink, purple (at sunrise and sunset) and black (at night).

IT DEPENDS on what time of day you look at the sky. Do realize, "the sky" is a term that originated before anyone knew what it is. That ignorance still propagates to today's usage. We say stars are in the sky just as much as we say birds are in the sky. Think of "the sky" as the name for an IMAGE, rather than the name for an "object" of any sort. During daytime, the sky is blue without question. Maybe you might more precisely call it cerulean or cyan...but no one really does that. The reason for a blue daytime sky background is what we call Rayleigh Scattering: http://hyperphysics.phy-astr.gsu.edu/hbase/atmos/blusky.html During dawn/dusk, the Rayleigh scattering is MUCH MORE extreme, due to light passing through an air mass eighty times that of the sun is at zenith. This causes a red sky in the direction of the sun...a deep blue sky everywhere else, and opposite the sun, it causes a violet sky. During deep night, the starless zones of the sky are black, because black is the default image of no incident visible light.