is "Big Bang" still a theory or is it proved?

Answer 1

something like the big bang theory will be a theory for ever, its true to me and 100% fact but its far too complicated to be solved enough to make it fact to all...
cirric has it right .... it will always be in the process of refining and endless amount of information

Answer 2

It is proved to the best of our ability.

And it is a theory. A theory is a tool. It is neither true nor false. It is 'more useful' or 'less useful' than another theory.

In science, a theory is not just 'an idea pulled out of a hat'. It is a set of hypotheses, held together by relations and evidence (and usually quite a few equations) and backed up by observations.

The original hypothesis was called the 'primeval atom' and was proposed by a priest - astronomer back in 1931. It was based on Hubble's observation that the further a galaxy appeared, the faster it seemed to move away.

Running the clock backwards, Lemaitre thought that at some time in the past, the distance between each galaxy would be zero. This led to two main theories (there were many, but they belonged to these two families):

1) The universe began as a 'singularity' of immense density/temperature and has been expanding since a fixed time in the past.

2) The universe is eternal and new 'space' and matter is constantly being created among existing space and matter, giving the impression of expansion.

Lemaitre favored number 1. Einstein initially favored number 2, but eventually rallied with Lemaitre, as solutions to the General Relativity theories seemed to favor an expanding (and cooling) universe.

Each theory was equipped with equations and further hypotheses in order to explain what we could see in the universe (for example, the fact that light has a fixed speed, the way stars evolve and become older, etc.).

One basic difference was that in number 1, the temperature started very high and has been going down since the start (as density becomes less). This is the simple application of a physical principle that we already know to be true.

In number 2, the temperature would have stayed relatively steady, as new matter is created at an appropriate rate to fill in the newly created space (i.e., the density remains the same).

Number 2 was called the Steady State Theory and was the preferred one for quite some time. The proponents of Steady State are the ones who gave the nickname of 'Big Bang' to the other theory, to emphasise the point that explosions are impossible, if you do not have something to expand into. They have at least achieved one goal: the name does cause some confusion for non-scientists.

However, when the cosmological microwave background radiation was discovered, the Steady State Theory could not explain it (in fact, the Steady State Theory would have 'predicted' that this radiation could not exist), while the Big Bang Theory could explain it quite easily (generated when the mean temperature of the universe passed 5000 F or 3000 K).

From that time on, Big Bang has been seen as the most useful theory.

Since then, there has been an attempt to create a new family of theories (grouped under the name M-theory); in general, they call for a universe with many dimensions (9 to 13, depending on the version), with our universe being a 3-dimensional sub-space of this much larger universe.

However, in order to explain what we see, these theories still feel the need to include a moment, some 14 billion years ago, when the density/temperature of the universe was enormous. One version has the larger universe contain many sub-spaces like ours and, 14 billion years ago, two of them would have collided, providing the high density/temperature that has been expanding/cooling ever since.

However, the Big Bang is still, by far, the one that best explains what we observe.

Is it possible that, one day, some other theory becomes better than Big Bang? Yes. However, it too will have to explain what we see. And what we see appears to include a moment in our past when the universe began to expand, with density/temperature dropping ever since.

Answer 3

The Big Bang is still a theory. This because it could still be proved wrong. Any theory could be wrong, that is why we call it a theory.

Answer 4

It is a theory and will remain so for as long as it is useful in explaining natural phenomena related to physics and the creation of the universe. Once another theory comes along, which can explain what the Big Bang does, but even better,
the latter will be discarded, as it will no longer be as useful.

Answer 5

Theory

Answer 6

It is a fact its just that the scientists are to dumb to acknowledge it and that something so simply on the outside can be so effective the big bang and the big crunch can be both found In The Holy Quran (Koran) which is mentioned in at least 2 places here is 1 Quote Chapter 21 verse 30
21:30. Have not those who disbelieve known that the heavens and the earth were joined together as one united piece, then We parted them rented them assunder in a outward motion ever expanding, And We have made from water every living thing. Will they not then believe?
21:31. And We have placed on the earth firm mountains, lest it should shake with them, and We placed therein broad highways for them to pass through, that they may be guided.
21:32. And We have made the heaven a roof, safe and well guarded. Yet they turn away from its signs (i.e. sun, moon, winds, clouds, etc.).
21:33. And He it is Who has created the night and the day, and the sun and the moon, each in an orbit floating.
21:34. And We granted not to any human being immortality before you (O Muhammad ), then if you die, would they live forever?
21:35. Everyone is going to taste death, and We shall make a trial of you with evil and with good, and to Us you will be returned.
21:36. And when those who disbelieve (in the Oneness of Allâh) see you (O Muhammad ), they take you not except for mockery (saying): "Is this the one who talks (badly) about your gods?" While they disbelieve at the mention of the Most Beneficent (Allâh). [Tafsir. Al-Qurtubî].
21:37. Man is created of haste, I will show you My sign (torments, proofs, evidences, verses, lessons, signs, revelations, etc.).So ask Me not to hasten (them).


there are many other Scientific Facts In the Holy Quran It was sent down over 1400 years ago

Answer 7

The phrase big bang was originally an insult pointed at the idea of universal expansion. However, if you buy a telescope tomorrow you can recreate Edwin Hubble's experiments and see for your self the truth of universal expansion.

By the way, a scientific theory is a set of rational, logical, and self consistent hypotheses that have been repeatedly demonstrated to be correct.

A Theory, is not just a theory!

Answer 8

No one "proves" theories. They are just useful constructs for explaining phenomenon. As long as the new evidence fits with the theory, it remains valid. Should evidence arise which doesn't fit with the theory, the theory would be changed to fit all the evidence. It's called the scientific method. Theories have value as long as they explain what we can see, and it's possible to DIS-PROVE a theory (i.e., by coming up with real evidence that doesn't fit the theory) but we can't PROVE the theory, since there will always be new evidence to try to be explained.

Answer 9

Hi. Theories are very difficult to prove. They are usually just refined. Same with the Big Bang.

Answer 10

In science, everything is constantly a theory; nothing is ever "proved", just disproved. Scientists come up with a model (usually mathematically based) of what happens in reality, and people see how robust that model is against new bits of information. If the model continues to hold, it continues to be accepted. When new info comes along that contradicts the model, and scientists cannot reconcile the discrepancy, it is disproved. For now, big bang seems to hold, unless you ask as creationist....