Question

Why sky appears dark instead of blue to an astronaut ?

Answer 1

The sky appears dark instead of blue to an astronaut because there is no atmosphere in the outer surface. As the sunlight is not scattered,no scattered light reach the eye of the astronauts and sky appears black to them. Hope it helps.

Answer 2

Explanation:

The sky appears dark instead of blue to an astronaut because there is no atmosphere in the outer space that can scatter the sunlight. As the sunlight is not scattered, no scattered light reach the eyes of the astronauts and the sky appears black to them.