Is it possible that the big bang never happened and the universe exists inside a singularity?

Answer 1

Well, hypothetically it's possible. It's just that there is no direct or indirect evidence that such a hypothesis might be true, while there is plenty of cosmological research that supports the big bang and related, such as inflation theories.
For your theory to actually be true, there must be a completely different set of physical laws and evidence, none of which we see today. Therefore, the idea is "possible" - but only in the same way that real magic is "possible." Generally scientists do not place much creedence in theories with little theoretical or experiemental evidence.

Answer 2

How would you explain the 'red shift' effect of the galaxies not to mention their accelerated velocity? Doesn't a singularity suggest that the laws of physics breaks down, which goes against our current observations?

How would you explain the cosmic microwave background radiation?...which has cooled by expansion to a temperature slightly less than 3 degrees above absolute zero, the theory predicted this observation, well before radio astronomers chanced upon it. Would a singularity predict this observation? To many, the CMBR shows an evolution from a dense, isothermal state.

Another observation that is consistent with the theory predicts that 25 percent of the total mass of the universe should be the helium that formed during the first few minutes, an amount that agrees with observations.

I agree that none of the evidence PROVES the big bang theory, but they are consistent with the theory.

Astronomers have known since the 1920s that the galaxies were flying apart. But theorists had belatedly realized a key implication: the whole cosmos must at one point have been much smaller and hotter.

Answer 3

Anything is possible, but the big bang and big crunch, in my opinion, is a cycle similar to the water cycle. The only difference in relation is that we cannot see the condensation or evaporation.
In other words, we cannot see the big bang, and the big crunch. We can however see events before and after.

In terms of a singularity, if we were inside a singularity, I would assume that other things would be joining the singularity at some point. This would mean that our universe would be gaining mass, unless it was gaining theoretical "anti mass" at the same rate to keep our universe's mass at zero.

Answer 4

We know that the universe had a beginning and that it is around 12-15bil years ago and that the the universe is expanding as a result of that. If you trace back the velocities of galaxies and such, you end up with something similar to a singularity though scientists don't exactly know the nature of the universe back then for one good reason: in a singularity, the normal laws of nature break down. In order to understand what it's like in one, you need a unified theory of everything (a theory of quantum gravity), without one you can only speculate. We do not have a quantum theory of gravity yet (except possibly string theory). So we have no idea what it's like in a singularity. What this all means:

The big bang did happen, Hubble proved it.

Since our universe has finite laws we are NOT in a singularity. Our universe is expanding, a singularity does not expand.

Answer 5

Nope...and let me tell you why. This year the Nobel Prize was awarded to two professors of physics that have been working for a long long time to prove the existence of the Big Bang...and this year they have! There is a remnant radiation in space from the Big Bang, it's called the background radiation, that is all around us. Visit the official Nobel prize website for more info....I don't have enough space to explain it all.
Secondly, if we would be inside a singularity there would be a critical point with extreme gravity in space towards which all matter would be attracted. But the Universe is ever expanding in ALL directions, not one!

Answer 6

The evidence for the Big Bang comes from many pieces of observational data that are consistent with the Big Bang. None of these prove the Big Bang, since scientific theories are not proven. Many of these facts are consistent with the Big Bang and some other cosmological models, but taken together these observations show that the Big Bang is the best current model for the Universe. These observations include:

- The darkness of the night sky - Olbers' paradox.
- The Hubble Law - the linear distance vs redshift law. The data are now very good.
- Homogeneity - fair data showing that our location in the Universe is not special.
- Isotropy - very strong data showing that the sky looks the same in all directions to 1 part in 100,000.
- Time dilation in supernova light curves. a point or region of infinite mass density at which space and time are infinitely distorted by gravitational forces and which is held to be the final state of matter falling into a black hole
By definition, singularity is a point or region of infinite mass density at which space and time are infinitely distorted by gravitational forces and which is held to be the final state of matter falling into a black hole.
So I'd have to say that the answer to your question is a resounding no.

Answer 7

In one sense --- and in this one sense only --- it appears that the Universe IS a "singularity," at least if you stretch the term "singularity" to mean a Black Hole. The argument follows.

Surveyed on the largest scale, and including all the stuff now bandied about by cosmologists --- baryonic matter (4%), dark matter (23%), dark energy (73%), *** the Universe is claimed to be essentially "flat." This means that the mass-energy content of the universe, expressed by the mass contained within any sufficiently large region, M, and the radius of that region, R, satisfy:

R = 2 G M / c^2

But this is the defining relationship for a Black Hole.

So, whether or not you want to draw a distinction between a Black Hole and a singularity (and there are technical distinctions), it certainly appears that the Universe is a Black Hole.

In one purely verbal sense, you can see that this is true: light can never "get out" of the Universe; that is the defining property of a Black Hole; therefore, the Universe sits in a Black Hole! *** Could this really be true? ###

Live long and prosper.

*** All these have never yet been seen -
But Scientists, who ought to know,
Assure us that they must be so....
Oh! let us never, never doubt
What nobody is sure about!

--- Hilaire Belloc

### We dance round in a ring and suppose,
But the Secret sits in the middle and knows.

--- Robert Frost

Answer 8

The singularity was taken as the nucleus for the big bang explosion in the Big Bang theory. The Theory of Big Bang suggests that the universe started with a huge and rapid expansion of a singular zero size condensed point. But encounter with singularity did not stop there. Singularity also exists At the center of each black hole.

Answer 9

A singularity is infinitely small and infinitely dense. I can't believe that any living, evolving and expanding universe like ours could exist within those conditions.

The strange thing about the singularity that went boom 13 billion years ago is that it existed outside of space and time - ie: without occupying any space (as there was none) and having no history to emerge from (as there was no time) - so how can it, to all intents and purposes have existed at all?

So if our universe were existing within a singularity, outside of space and time, how can it exist. Or maybe it doesn't.

OK - now I have a headache.

Answer 10

If the Big Bang never happened, why is the universe expanding? Why is the universe filled with the remnant temperature of the Big Bang? You can't turn your back on observed features of the universe in order to develop a new theory.