why sky appears dark from moon?

Answer 1

Our sky is bright during the day because our atmosphere scatters sunlight. The Moon has no atmosphere to scatter light, so the sky there is always black.

Answer 2

If you mean why does it appear there are no stars in the sky from pictures taken from the moon, it is because taking a picture of a pinpoint faint light object like a star requires an extremely long exposure time to film. If you were to walk outside at night and snap a picture of the starry sky, all youd get would be blackness unless you used a long exposure time. The problem is, stars move across the sky at night due to the rotation of the moon or earth. If you used a longer exposure time, the stars would become blurred. Either way your kinda screwed.

Answer 3

Sky on Earth is what we see because it has an atmosphere. The atmosphere fluoresces toward the blue.
The Moon has no atmosphere hence it does not have a fluorescent sky.Since light is invisible unless there is a reflection in space to bounce the light particles to our eyes , it appears lightless= Dark.

Answer 4

Because there is no air on the Moon.