What existed at the time of the Big Bang?
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What existed at the time of 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.
Where did all the matter from the Big Bang come from?
According to the big bang theory, all the matter in the universe erupted from a singularity.
Was there a Universe 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.
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?
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.
Did the universe begin with a whimper or a bang?
But we know better today. The Universe began not with a whimper, but with a bang! At least, that’s what you’re commonly told: the Universe and everything in it came into existence at the moment of the Big Bang.
Did only elementary particles survive the Big Bang?
Although other black holes might come out of some big bang models involving quantum mechanics, a common expectation by cosmologists is that only elementary particles survived these early epochs of our universe. Christ Ftaclas is an associate professor of physics, also at Michigan Tech. He adds the following: