Question

Why does the sky appears dark at high altitude?

Answer 1

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.

Answer 2

Answer:

Atmosphere helps in scattering of light and sky appears ,blue ,pink etc but when you move to higher altitudes it appears dark because there is absence of atmosphere and scattering of light doesn't occurs.

Explanation:

Hope it helps you