Surah Prophets (Verse 32)
And we set up the heaven as a roof well- protected; yet still from our signs they are turning away.
سورة الأنبياء الآية 32
The Sky
The "sky" as used in The Holy Qur’an is the atmosphere that surrounds our earth and the blue dome, which we see above us. While the word "skies" or "heavens” denotes what surrounds all heavenly bodies in the universe.
The sky as mentioned in The Holy Qur’an beside its charm and the beautiful sight we always watch day and night, has multiple scientific benefits for man. As for the benefits of day and night they are known to everybody nowadays. But, how this day and night happen to be, is one of God's wonders and signs.
Other related links:
Anfal (9-10)
Ta Ha (2-4)
The Most High (Al- A laa)