CBSE Class 10 Science 2018 · Paper 31(B) · Question 2
Why does the sky appear dark instead of blue to an astronaut ?
Answer
There is no atmosphere in space to scatter sunlight, so no scattered light reaches the astronaut and the sky looks dark.
There is no atmosphere in space, so there are no air molecules or fine particles to scatter sunlight. No scattered light reaches the astronaut's eye from the sky, so the sky appears dark instead of blue.
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