“[Allah has] created seven heavens (samawat), one on top of the other.”
Cited to explain the seven samawat ascended during al-Mi'raj.
“We have beautified the lowest heaven (Sama al-Dunya) with its lamps and its lights.”
Cited to explain that the observable stars/galaxies sit within the lowest heaven (Sama al-Dunya), the first heaven ascended through during al-Mi'raj.