Look around, you can see what it is like.
Exactly the same, there was no big bang!! That theory has been proven wrong.
The big bang began the expansion of spacetime with great rapidity. The Universe began with the Big Bang. In other words both space and time began at the big bang. The big bang started the Universe from the point t=0.
Our concept of the "big bang" has no explanation about how or why, but our hypothesis is that there was NOTHING before the Big Bang created the universe.
The big bang was the BEGINNING of the universe so there was no temperature before it :P
The Big Bang Theory tells what happen at the begning of the universe. How the Earth comes into the universe
Current theory is the Big Bang
our universe like the orion arm and all that
big bang: This is the big bang theory
This is "The theory" which may also explain the acceleration, that is taking place in the universe. Our universe is surrounded by some 4 such universes, probably four pre big bang masses. In turn the four pre big bang masses are surrounded by four universes. Those universes are surrounded again four pre big bang masses. So one universe is surrounded by four pre big bang masses and one pre big bang mass is surrounded by four universes. You can find the structure of carbon atoms in case of diamond to imagine the same. So your universe is getting acceleration due to gravitational forces of the four pre big bang masses and other universes. So there is probably nothing like 'Dark energy", which "Push" the universe. But there are probably four "Pre big bang masses" and other universes, which are "Pulling" your universe from the "Out side" to give acceleration to your universe. It may take another billions of years, for your universe to "Fall", on those pre big bang masses. Once your universe "Fall" on such pre big bang masses, that will initiate "Big bang" there in those pre big bang masses. This theory also explains to why the acceleration in expansion of the universe did not start from the starting of the big bang. The big bang started at the point, where the gravitational force of the outer universes was zero, like Lagrangian points. Once your universe started to expand, it drifted more and more from this zero gravity point. That gave an opportunity to outer pre big bang masses and universes to pull your universe apart, giving it an acceleration.
In the current model of the universe the big bang was the 1st thing to happen in the universe since time itself was created in the big bang.
because of the big bang
big bang