What was 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.

How did the universe exist before the Big Bang?

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.

Was there another universe before the Big Bang?

There was actually a universe already existing before it and the Big Bang was merely the end of that universe, said Nobel laureate Roger Penrose. He added, “We have a universe that expands and expands, and all mass decays away, and in this crazy theory of mine, that remote future becomes the Big Bang of another aeon.”

What existed before the singularity?

The universal origin story known as the Big Bang postulates that, 13.7 billion years ago, our universe emerged from a singularity — a point of infinite density and gravity — and that before this event, space and time did not exist (which means the Big Bang took place at no place and no time).

What was the universe like before the Big Bang?

Before the bang It’s possible that before the Big Bang, the universe was an infinite stretch of an ultrahot, dense material, persisting in a steady state until, for some reason, the Big Bang occured. This extra-dense universe may have been governed by quantum mechanics, the physics of the extremely small scale, Carroll said.

Is the Big Bounce a big bang or Big Bang?

The Big Bounce would make a departure from western civilization’s view of reality since St. Augustine, because it would recognize that time actually existed before the universe as we know it. But whether it as a Big Bang or a Big Bounce, the question of what existed before our present universe remains an open question.

Is the Big Bang a point in space?

“The Big Bang is a moment in time, not a point in space,” said Sean Carroll, a theoretical physicist at the California Institute of Technology and author of “The Big Picture: On the Origins of Life, Meaning and the Universe Itself” (Dutton, 2016). Sorry, the video player failed to load. (Error Code: 100013)

What if the pre-Bang universe was metastable?

This pre-Bang universe would have been metastable, meaning it would have been stable only until it basically realized there was a more stable state. As an analogy, imagine a ball sitting in a depression vibrating at the side of the mountain.