Why does sky appear dark instead of blue to an astronaut?

1.	Why does sky appear dark instead of blue to an astronaut?
Answer» Sky colour seen blue because of reflection of light ok thanx for your answer?? Light dispers in medium , space there is no medium (vacum ) on earth where sky appears blue there is medium air and dark light dispers into blue colour Because there is no atmosphere in the outer space that can scatter the sunlight.

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