The Theory of Continuous Creation (Steady State Theory)

The Theory of Continuous Creation explained the stable density of the universe despite the increasing distance between its parts by postulating that: matter comes and takes the place of matter that has moved away, which is how the universe maintains its density despite its expansion. Then they said: It is like that, for the universe is in a steady state and it has been that way forever; it has no beginning and no end.  Then came the question that invalidated this deduction, and therefore the theory: Where did this matter come from?  Some of the proponents of this theory—at the beginning—said that it was created from nothing, but many objected to saying something like that, since nothing cannot create something.  Before long, scientists discovered facts that brought this theory to its death. They found incontrovertible evidence that the universe does not remain in one state as this theory postulated, which is why it was called Steady State Theory.

It was proven that the universe was in a state of change, contrary to what this theory proposed, and the theory could not explain the change. That is why scientists have turned away from it toward another theory: the Big Bang Theory.
B) The Big Bang Theory This theory proposes that: If the universe has been expanding to this day, then it must have once been more condensed, and if we imagine the progression of these galaxies in the opposite of the direction in which they are expanding today, meaning if we imagine them getting closer and closer together, then it would have been one piece equal in size to the collective size of the
galaxies it was made of. However, physicists say that however much these galaxies move closer together and compact, their density increases, as would the strength of their attraction, so they would become more stuck together, the empty spaces between the stars that form the galaxies would compress, the force of gravity would increase on the stars themselves, and in that way, the pressure would
continue until all the matter from which the universe was formed would become the size of an atom. The pressure would then continue until this matter was as small as possible.  This extremely compressed matter and tremendous amount of energy would explode, its parts spreading out in the form of rays. Then it would begin to cool, and gradually the universe we see
would have formed from it.

Then came the important question:
 Where did this matter that the universe was created of come from?
 Is it possible that this matter came from nothing? Of course not; nothingness cannot create anything. Then, where did it come from?
 The confirmed solution is: without a doubt, God the Creator brought it into being from nothingness—the Creator of everything—and He (Glorious & Exalted) is characterized by Absolute Power, and His Attributes are wholly dissimilar to those of His creatures. If He wills
something, He must only say, "Be," and it is. Glory be to Allah, the Almighty! 

A crucial note:
We would like to point out that the Holy Quran gave an indication of this theory (the Big Bang Theory). In fact, it raised it from being a hypothesis—though scientists inclined more toward it than other hypotheses—to being a certified fact, for, as we indicated earlier, it is necessary to believe in Allah's prophets and messengers, and to believe in the Divine Scriptures with which they were sent, including all that is contained therein. For Allah (Glorious & Sublime) revealed to us in the Holy Quran,

The words, {kaanataa ratqan}, mean that the heavens and the earth were joined together, not at a distance, {fa-fataqnaa-humaa}, meaning: We separated them, i.e., the heavens and the earth.Thus, this Noble Verse calls us to contemplate how this universe we see began, to come to know its Creator, and to believe in Him, His Glorious Attributes and the Absoluteness of His Power.
 As such, this Noble Verse is amazing, inimitable, scientific proof, which bears witness to the veracity of the Words of the Lord of the Worlds as sent down upon the Seal of His Prophets and Messengers, Muhammad, may the peace and blessing of Allah be upon him.