3 verses have
sky
in Edition Clear Qur'an by Talal Itani / Al-Hijr (The Rock)

15:14Even if We opened for them a gateway into the sky, and they began to ascend through it.

15:16We placed constellations in the sky, and made them beautiful to the beholders.

15:22We send the fertilizing winds; and send down water from the sky, and give it to you to drink, and you are not the ones who store it.