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How does a big bang pop in a vacuum?

## How does a big bang pop in a vacuum?

[From: Astronomy & Space] [author: ] [Date: 06-15] [Hit: ]
How does a big bang pop in a vacuum?......

How does a big bang pop in a vacuum?

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Jeffrey K say: The Big Bang did not happen within a pre existing vacuum or space. Not even space existed before the big bang. It was created by the big bang.
Therefore the big bang occurred in total nothingness. Nobody knows how or why.
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Bulldog redux say: What? Did you inadvertently omit an "o"?
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Ronald 7 say: Without a noise
It was more of a Kabloom actually I have heard
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Tom S say: They don't, your confused.
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sparrow say: Scientists have recently discovered that the vacuum is not really a vacuum.
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neb say: Obviously, no one knows for sure. Keep in mind though that a vacuum is not what you probably think it is.

A classical, true vacuum does not exist. A true vacuum would be completely devoid of anything.

We know from quantum mechanics that true vacuums do not exist. Quantum vacuums are the ground states of all possible quantum fields. Even if these ground states are at a classical zero energy level, quantum mechanics says these fields must fluctuate above that zero energy, hence ‘nothing’ doesn’t exist. The minimum you can have is a fluctuating quantum vacuum in its ground state.

One line of reasoning is that a quantum vacuum predated the universe. A quantum vacuum that always existed. A fluctuation of that vacuum was the Big Bang. Because of the uncertainty principle, the greater the energy the fluctuation has, the shorter the time it can exist. The apparent energy of the universe would seem to make that fluctuation exist for a vanishingly small time. However, there are fans of the zero energy universe. All of the positive energy from mass, kinetic energy, energy density of fields, etc. is exactly balanced by the NEGATIVE potential energy of gravitational fields, giving a universe with zero total energy. This would allow the universe to come into existence from a fluctuation, and persist indefinitely.
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busterwasmycat say: It doesn't, really. there was no vacuum to begin with. Vacuum is one consequence of it. 0 volume is not a vacuum. it is absence of volume. You have to make volume before you can have nothing in it.
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Adullah M say: It is as if asking how the rocket given out combustion and create trust during the flight in space.
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ReductioAdAstronomicus say: I give up. How does it pop in a vacuum?
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Captain Matticus, LandPiratesInc say: Balloons pop in a vacuum. I'm not saying that the Big Bang is akin to a balloon in a vacuum. Rather, I'm just pointing out that things do pop in vacuums.

That being said, space didn't exist when time was 0. Space is expanding in all directions at all times, even now. There was no vacuum when time was 0 because there was no space.
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CarolOklaNola say: Quantum fluctuation in the quantum foam or subspace is how. There was NO matter exploding in the Big Bang. The Big Bang was ALL ENERGY. There was NO VACUUM and NO UNIVERSE until the Big Bang Created THIS bubble Universe.
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poldi2 say: No idea, when did any bang pop in a vacuum.
The Big Bang was not a pop, it was the sudden expansion of the singularity that was all the matter and energy of the entire universe.
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Rowan say: Causality requires an endless chain of causality, the solution is the big bounce theory, big bang, big crunch, big bang. The black holes that form when the stars burn out, suck in all energy, leaving no propulsion, only gravity, and so they must turn around in orbit of the gravity behind them, however long it takes, and come back again. Hawking radiation is unproven, dark energy is an unknown, so is this theory, but it makes the most sense because it provides a cause for the big bang that isn't God.
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? say: It just sorta does. I mean, I had my vacuum out the other day to pick up some dirt the dog had tracked in, the beginning of all life started in the bag, and I definitely heard a pop. Or, ya know, it wasn't a literal bang that made a noise
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