Question

why the sky appears black if there is no atmosphere around the earth????​

Answer 1

Answer:

Yes.  Earth's sky is blue because it's atmosphere scatters sunlight in random directions. If you are looking at a point in the sky that is blue, you are looking at light that originated from the direction of the sun that got bounced around a bunch of times in all different directions until it finally reached your eye.

Explanation:

Answer 2

Answer:

The blue color of the sky is a result of this scattering process. At night, when that part of Earth is facing away from the Sun, space looks black