Question

What was there before Big Bang?..​

Answer 1

Answer:

It has been suggested that this article be merged into Gravitational singularity.

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The initial singularity is a singularity predicted by some models of the Big Bang theory to have existed before the Big Bang and thought to have contained all the energy and spacetime of the Universe

Answer 2

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The Big Bounce theory was once thought impossible. But two physicists have just resurrected it. In the beginning, there was an infinitely dense, tiny ball of matter. Then, it all went bang, giving rise to the atoms, molecules, stars and galaxies we see today.