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

(151) To Allah belongs whatsoever is in the heavens and the earth. Verily, Allah, He is Al-Ghani (Rich, Free of all needs), Worthy of all praise.

(152) Allah it is He Who has created the heavens and the earth, and all that is between them in six Days. Then He rose over (Istawa ) the Throne (in a manner that suits His Majesty). You (mankind) have none, besides Him, as a Wali (protector or helper) or an intercessor. Will you not then remember (or receive admonition)?

(153) He manages and regulates (every) affair from the heavens to the earth; then it (affair) will go up to Him, in one Day, the space whereof is a thousand years of your reckoning (i.e. reckoning of our present world's time).

(154) And indeed We gave Musa (Moses) the Scripture [the Taurat (Torah)] So be not you in doubt of meeting him [i.e. when you met Musa (Moses) during the night of Al-Isra' and Al-Mi'raj over the heavens]. And We made it [the Taurat (Torah)] a guide to the Children of Israel.

(155) Truly, We did offer Al-Amanah (the trust or moral responsibility or honesty and all the duties which Allah has ordained) to the heavens and the earth, and the mountains, but they declined to bear it and were afraid of it (i.e. afraid of Allah's Torment). But man bore it. Verily, he was unjust (to himself) and ignorant (of its results).

(156) All the praises and thanks be to Allah, to Whom belongs all that is in the heavens and all that is in the earth. His is all the praises and thanks in the Hereafter, and He is the All-Wise, the All-Aware.

(157) He knows that which goes into the earth and that which comes forth from it, and that which descends from the heaven and that which ascends to it. And He is the Most Merciful, the Oft-Forgiving.

(158) Those who disbelieve say: "The Hour will not come to us." Say: "Yes, by my Lord, the All-Knower of the Unseen, it will come to you; not even the weight of an atom (or a small ant) or less than that or greater escapes His Knowledge in the heavens or in the earth but it is in a Clear Book (Al-Lauh Al-Mahfuz).

(159) See they not what is before them and what is behind them, of the heaven and the earth? If We will, We shall sink the earth with them, or cause a piece of the heaven to fall upon them. Verily, in this is a sign for every slave who turns to Allah in repentance (i.e. the one who believes in the Oneness of Allah and performs deeds of His obedience and always begs His Pardon).

(160) Say: (O Muhammad صلى الله عليه وسلم to polytheists, pagans) "Call upon those whom you assert (to be associate gods) besides Allah, they possess not even an atom's (or a small ant's) weight either in the heavens or on the earth, nor have they any share in either, nor there is for Him any supporter from among them.