Why Sky Appears Black To Astronauts?

why sky appears black to astronauts?

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Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air

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Blue light is scattered more than the other colors because it travels as shorter, smaller waves

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This is why we see a blue sky most of the time

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Closer to the horizon, the sky fades to a lighter blue or white

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The blue color of the sky is due to scattering of light from the atmosphere

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As there is no atmosphere in space and hence light does not scatter into its constituent colors

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This is why the sky appears dark instead of blue to an astronaut in space

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