Question

what is sky ? .................​

Answer 1

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The “sky” actually means everything above the Earth's surface, including space. That's why so many stars – like our own sun, but much further away – light up the night sky. ... This keeps the Earth at a comfortable temperature, and prevents it getting too cold – like a giant greenhouse

Answer 2

Hi....

The sky is everything that lies above the surface of the Earth, including the atmosphere and outer space. In the field of astronomy, the sky is also called the celestial sphere. This is an abstract sphere, concentric to the Earth, on which the Sun, Moon, planets, and stars appear to be drifting.

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