There is no way of knowing at our current level of physics understanding; we do not know what conditions prevailed at the time of the Big Bang, or what - if anything - preceded it. We don't even know if the concept of "before" makes any sense in terms of the Big Bang.
maybe this isn't an official answer but, perhaps the material of a previous universe collapsed in upon itself, then the big bang caused that material to re-expand. this idea supports the theory that the current universe will eventually stop expanding and collapse, it also implies that perhaps our current universe is not the first, nor will be the last. to take it further perhaps "parallel universes" are actually residual energy from previously existing universes. however i cant even begin to explain how the very first big bang, if there was one, came to be. this is a personal theory, so take it with a grain of salt. if you like it however, feel free to spread it around.
We don't know what was responsible for the big bang. Four of the fundamental forces we are familiar with decoupled from one another afterwards. The first force to split off was gravity. Electromagnetism and the strong and weak nuclear forces split apart shortly after that. But what caused the big bang we don't know. One guess is some sort of "quantum fluctuation."
Many scientists think, several believe, and others conjecture, that it was the force of gravity.
Scientists don't "think" it was gravity, scientists know that it was gravity.
Gravity
The person who discovered the galaxies are rushing away from one another and the universe is expanding from an original big bang was Edwin Hubble.
Amongst other forces, gravitation.
No, it's the other way round. The Big Bang is responsible for the redshift.
Many scientists think, several believe, and others conjecture, that it was the force of gravity.
Scientists don't "think" it was gravity, scientists know that it was gravity.
The universe is expanding because of force of big bang.
Gravity
The person who discovered the galaxies are rushing away from one another and the universe is expanding from an original big bang was Edwin Hubble.
We are all responsible for taking care of the earth. As for how the earth began, it all started with the Big Bang.
Amongst other forces, gravitation.
According to the believes of physics and the big bang, we know that the big bang was both big and a bang. Since we are still receiving radiation from the big bang, So considering that factor I would say that it was big and a bang. What do you believe?
Big Bang - Big Bang album - was created on 2009-08-19.
Current theory is the Big Bang
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