Astrophysics: Before the Big Bang, there was no such thing. There was a condition of non-existence in which neither matter, nor energy, nor even time existed, so it can only be described metaphysically, matter, energy, and time were all created.
In Quran: There was nonexistence until God (Allah) has created heavens and earth.
(All the praises and thanks are to Allâh, the (only) Originator (or the (only) Creator) of the heavens and the earth). (Quran 35:1)
Astrophysics: the term Big Bang generally refers to the idea that the universe has expanded from a primordial hot and dense initial condition at some finite time in the past, and continues to expand to this day.
The heavens and the earth "whole Universes" were created from one thing where all matter and energy squeezed into a tiny volume called by The Glorious Qur’an Ratq.
These original contents was joined together (Ratq) and the trigger of the creation start with Instantaneous cleft called by The Glorious Qur’an Fatq
(Have those who disbelieved not considered that the heavens and the earth were a joined entity, and We separated them and made from water every living thing? Then will they not believe?). (Quran 21:30)
Astrophysics: At one point in time, the whole universe was nothing but a cloud of ‘smoke’ (i.e. an opaque highly dense and hot gaseous composition). Dr. Loretta Dunne from Cardiff University, who led A team of UK astronomers says: "Cosmic dust consists of tiny particles of solid material floating around in the space between the stars. It is not the same as house dust but more akin to cigarette smoke."
What is the state of matter in the early universe? The answer from The Glorious Quran is Dokhan (smoke). The Glorious Qur’an precedes recent Astronomers since more than 1400 years ago when mentioned that the Dokhan (smoke) was dominating the early sky.
(Moreover He comprehended in His design the sky, and it had been (as) smoke: He said to it and to earth: "Come ye together, willingly or unwillingly" They said: "we do come (together) in willing obedience). (Quran 41: 11-12)
Astrophysics: Observations of distant galaxies and quasars show that these objects are redshifted which means that the universe is uniformly expanding everywhere.
An expanding Universe does not mean that everything in the Universe is growing in size. The galaxies are only moving away from each other! (Michael S. Turner & Craig Wiegert). The best words to explain this are mentioned in Quran (Enna lamosoon (create the vastness of the sky)).
(And the heaven We constructed with strength, and indeed, We are [its] expander.). (Quran 51:47)
Astrophysics: After the Big Bang there were density fluctuations (Dr. Smoot [Noble Prize 2006] Called it Ripples) which seeded the development of large structure as The galaxies of our universe are arranged into filaments of clusters and super clusters woven into the cosmic web.
(By the sky with (its) HOBOK numerous paths). (Quran 51:6)
Quran mentions that sky has what is called in Arabic "HOBOK" which has several meanings all of them describe the facts mentioned above.
a- Hobok are the filaments when they are woven firmly in a fabric (web).
b- Hobok are what you see in surface of the sand by the effect of light wind, which we now define as ripple marks.
c- Hobok are the surface features in stagnant water resulted from the passing of quite air through water.
d- Hobok are the breaking (rippling) every thing even the uneven hair.
e- Architecture with stars, the galaxy and paths of stars.