Multiple choice

To an astronaut on the surface of the moon the sky appears:

  1. white

  2. rich blue

  3. light blue

  4. dark

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The Moon has an extremely thin atmosphere, so there is almost no Rayleigh scattering to create a blue sky like on Earth. The sky appears dark/ black even during daytime due to this lack of atmospheric scattering.