why is the sky blue during the day on the earth but always black on the moon?

Answer 1

Rayleigh scattering causes the blue sky on earth.

The moon has no atmosphere to be scattered, so has no blue sky

Answer 2

The blue color of the sky, as viewed from earth, is a result of sunlight passing through the earth's atmosphere.
The effect is called "scattering".
Light has different wavelengths (i.e. red light has long wavelengths, blue light has short wavelengths).
Selective scattering occurs when the particles (in this case, particles in the earth's atmosphere, which is made up of gasses, dust, and water) are smaller than the wavelengths's colors.
In Earth's atmosphere, blue light scatters and becomes visible to the eye.
Things like pollution, and like dust particles from volcanic eruptions, can change this "scatter" and cause the sky to look different colors.

Answer 3

Our sky is blue (and even on Mars has a bluish tint) because of the way our atmosphere scatters & refracts the sunlight hitting it. The color not absorbed by the sky is what we see - sky blue.

On the moon, there is no atmosphere. So sunlight isn't scattered at all - where the sun *isn't* - it's black.

Answer 4

Actually the blue light is the only color that reaches our eyes------- the rest of the spectrum passes through the atmosphere largely unimpeded. The blue (shorter wavelength) is absorbed by water vapor in the atmosphere and then re-emitted --------- blue light comes out. The other colors pass straight into the ground and we only see them in a prism or rainbow.

The moon is a vacuum --------- nothing to absorb or reflect the light from the Sun-------- so the full spectrum (white light) reaches the ground.

Answer 5

Its led to through the diffusion of sunshine waves by nitrogen interior the earths environment. by using fact the ambience is especially nitrogen (seventy 9%) that's why the sky on earth is blue. there is not any environment on the moon so the sunshine travels directly to the exterior.

Answer 6

Some solar light is scattered by Earth's atmosphere. The lowest energy light is red, so it is scattered more (see SUNRISE, and SUNSET). Without an atmosphere, it's just pure sunlight, sharp shadows and no color scattering.

Answer 7

the blue colour comes from light shining through atmosphere the moon has no atmosphere

Answer 8

the dust and water in earths atmosphere refract the sunlight and it comes out blue. the moon has no atmosphere to hold dust and moisture ergo no refraction and black.

Answer 9

The moon has no atmosphere to create the bluish tint we see on earth.

Answer 10

Because on the moon there isnt any moiture to reflect the light and chang ethe color to blue. On the earth the little particles of moisture act as prisms and reflect teh light from the sun to make it blue.