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WBCS Main Examination 2023 — Paper IV: General Studies II · Question 8 of 200

Q8
General SciencePhysics
An astronaut in a spaceship see the outer space as
  1. a.Red
  2. b.Blue
  3. c.Indigo
  4. d.Black

Answer: (D) Black

The sky looks blue from the ground because air molecules scatter blue sunlight towards us. In outer space there is no atmosphere to scatter light, so the sky appears black. Red, blue and indigo would all require scattering by air.