The word(s) "heaven" appears 287 time(s) in 275 verse(s) in Quran in Mohsin Khan translation.

(171) Then ask them (i.e. these polytheists, O Muhammad صلى الله عليه وسلم): "Are they stronger as creation, or those (others like the heavens and the earth and the mountains) whom We have created?" Verily, We created them of a sticky clay.

(172) Or is it that the dominion of the heavens and the earth and all that is between them is theirs? If so, let them ascend up with means (to the heavens)!

(173) And We created not the heaven and the earth and all that is between them without purpose! That is the consideration of those who disbelieve! Then woe to those who disbelieve (in Islamic Monotheism) from the Fire!

(174) "The Lord of the heavens and the earth and all that is between them, the All-Mighty, the Oft-Forgiving."

(175) He has created the heavens and the earth with truth. He makes the night to go in the day and makes the day to go in the night. And He has subjected the sun and the moon. Each running (on a fixed course) for an appointed term. Verily, He is the All-Mighty, the Oft-Forgiving.

(176) And verily, if you ask them: "Who created the heavens and the earth?" Surely they will say: "Allah (has created them)." Say: "Tell me then, the things that you invoke besides Allah - if Allah intended some harm for me, could they remove His harm? Or if He (Allah) intended some mercy for me, could they withhold His Mercy?" Say: "Sufficient for me is Allah; in Him those who trust (i.e. believers) must put their trust. "

(177) Say: "To Allah belongs all intercession. His is the Sovereignty of the heavens and the earth. Then to Him you shall be brought back."

(178) Say (O Muhammad صلى الله عليه وسلم): "O Allah! Creator of the heavens and the earth! All-Knower of the Ghaib (Unseen) and the seen! You will judge between your slaves about that wherein they used to differ."

(179) To Him belong the keys of the heavens and the earth. And those who disbelieve in the Ayat (proofs, evidence, verses, signs, revelations, etc.) of Allah, such are they who will be the losers.

(180) They made not a just estimate of Allah such as is due to Him. And on the Day of Resurrection the whole of the earth will be grasped by His Hand and the heavens will be rolled up in His Right Hand.Glorified be He, and High be He above all that they associate as partners with Him!