What was in existence before the Big Bang?

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.

Where did the singularity before the Big Bang come from?

The initial singularity was the gravitational singularity of infinite density thought to have contained all of the mass and space-time of the Universe before quantum fluctuations caused it to rapidly explode in the Big Bang and subsequent inflation, creating the present-day Universe.

Did time exist before Big Bang?

For 13.8 billion years, the universe has been expanding, cooling and evolving. Textbooks often say that the start of this expansion — the Big Bang — was the start of time. “Others don’t use the inflationary mechanism but still have a phase which is before the Big Bang — before the conventional expanding phase.”

Did space and time exist before the Big Bang?

The statement that space and time did not exist prior to the Big Bang appears to present a logical impossibility, at least with respect to time. Any physical event implies change, and change presupposes — or would logically require — the existence of time. Or not?

Was there a big bang that produced something from nothing?

Essentially, “there was never a Big Bang that produced something from nothing. It just seemed that way from mankind’s point of perspective.” In in a lecture on the no-boundary proposal, Hawking wrote: “Events before the Big Bang are simply not defined, because there’s no way one could measure what happened at them.

What is the Big Bang theory of the universe?

History of the Big Bang theory From Wikipedia, the free encyclopedia According to the Big Bang model, the universe expanded from an extremely dense and hot state and continues to expand today. A common analogy explains that space itself is expanding, carrying galaxies with it, like spots on an inflating balloon.

How long has the universe existed?

The Universe has not existed forever. It was born. Around 13.82 billion years ago, matter, energy, space – and time – erupted into being in a fireball called the Big Bang. It expanded and, from the cooling debris, there congealed galaxies – islands of stars of which our Milky Way is one among about two trillion. This is the Big Bang theory.