I don't think Big Bang happened in past. We don't know even .1% of our universe. I think it was a big collision rather than the Big Bang. The gas objects which collide they were very big in size, may be one gas object large enough that can cover our universe. Very Large!!!!!!!!!!!

They will look like our galaxy but very very large in shape (grater than our universe which we are thinking now). I think even now also that collision is happening. We are in the middle stage of that.It was like a galaxy collision(However galaxy collision is very small in compare of that).

I think we are the part of a big Universe and Universe did not start with a Big Bang. It was a collision!!!!!!!!!!!!!!

There has never been any sort of "bang".
How the cosmos manifested is described in H.P:Blavatsky´s "Secret Doctrine".An easier way to find out is to study hylozoics.

I don't think that there have been any "Big Bang" either.
The Big Bang is the leading theory that almost all astrophysicists believe explains the origin of the universe.
But i don't think that there is any proof that prooves that there was any "Bang".

The big bang theory is the best attempt that has been made to explain how our universe came to be, simply put. A singularity that somehow got kick-started and then started expanding and keeps doing so. there was no actual 'bang'