BIG BANG theories?

Question

I just want any theories or speculations...even facts that you have on the big bang. I won't judge you on how farfetched they are...just give me something.

Answer 1

One of the most persistently asked questions has been: How was the universe created? Many once believed that the universe had no beginning or end and was truly infinite. Through the inception of the Big Bang theory, however,no longer could the universe be considered infinite. The universe was forced to take on the properties of a finite phenomenon, possessing a history and a beginning.

About 15 billion years ago a tremendous explosion started the expansion of the universe. This explosion is known as the Big Bang. At the point of this event all of the matter and energy of space was contained at one point. What exisisted prior to this event is completely unknown and is a matter of pure speculation. This occurance was not a conventional explosion but rather an event filling all of space with all of the particles of the embryonic universe rushing away from each other. The Big Bang actually consisted of an explosion of space within itself unlike an explosion of a bomb were fragments are thrown outward. The galaxies were not all clumped together, but rather the Big Bang lay the foundations for the universe.

The origin of the Big Bang theory can be credited to Edwin Hubble. Hubble made the observation that the universe is continuously expanding. He discovered that a galaxys velocity is proportional to its distance. Galaxies that are twice as far from us move twice as fast. Another consequence is that the universe is expanding in every direction. This observation means that it has taken every galaxy the same amount of time to move from a common starting position to its current position. Just as the Big Bang provided for the foundation of the universe, Hubbles observations provided for the foundation of the Big Bang theory.

Since the Big Bang, the universe has been continuously expanding and, thus, there has been more and more distance between clusters of galaxies. This phenomenon of galaxies moving farther away from each other is known as the red shift. As light from distant galaxies approach earth there is an increase of space between earth and the galaxy, which leads to wavelengths being stretched.

In addition to the understanding of the velocity of galaxies emanating from a single point, there is further evidence for the Big Bang. In 1964, two astronomers, Arno Penzias and Robert Wilson, in an attempt to detect microwaves from outer space, inadvertently discovered a noise of extraterrestrial origin. The noise did not seem to emanate from one location but instead, it came from all directions at once. It became obvious that what they heard was radiation from the farthest reaches of the universe which had been left over from the Big Bang. This discovery of the radioactive aftermath of the initial explosion lent much credence to the Big Bang theory.

Even more recently, NASAs COBE satellite was able to detect cosmic microwaves eminating from the outer reaches of the universe. These microwaves were remarkably uniform which illustrated the homogenity of the early stages of the universe. However, the satillite also discovered that as the universe began to cool and was still expanding, small fluctuations began to exist due to temperature differences. These flucuatuations verified prior calculations of the possible cooling and development of the universe just fractions of a second after its creation. These fluctuations in the universe provided a more detailed description of the first moments after the Big Bang. They also helped to tell the story of the formation of galaxies which will be discussed in the next chapter.

The Big Bang theory provides a viable solution to one of the most pressing questions of all time. It is important to understand, however, that the theory itself is constantly being revised. As more observations are made and more research conducted, the Big Bang theory becomes more complete and our knowledge of the origins of the universe more substantial.

Answer 2

".just give me something."

These are my own thoughts on the subject.

For some reason nothing can't exist (try to imagine this, it will pull your mind into a black hole).

The question is, are all the properties of the universe random or do they coalesce in a way that allows life (and us to exist), i.e. to they "gravitate" toward those values. By properties I mean the constants of gravity, electromagnetism, mass etc.

Can we ever test for what is outside of our own universe or will it just be pure theory like string theory (i.e. who knows how far it is off the mark when no predictions can be made).

Are there other universes, in fact an infinite number of them. If they have different properties, are they "dead" universes or just a lot different?

The fact that the universe is right on the borderline between the big crunch and expanding forever seems perplexing to me (does that mean it will stop?).

There is an astronomy podcast called "astronomy cast" http://www.astronomycast.com/archive/ that has an episode or two on the big bang, got me thinking about it again recently and seeing what the contributors at wikipedia had put up. Given the rate of expansion I couldn't believe how long the universe was like the interior of a star.

Answer 3

hears how i see it on god decided to build theuniverse.so he made the first atom nown as a super atom that was binded to gether by gravity something something something.but he disbanded one of them then it well banged and started expandind and expanding more and more galaxys.and every thang is still expnding but we cant see it becouse everythang else is expanding to.some of that may go against mathmatics but anyway the god decided tocreate life.every planet that he thought should be gaven life was. he came to earth then u know the story from there.and now hes gone on to oter planets/not saying hes forgoten us im saying hes creating more life.on other planets.the bible isnt compltely right if u ask me.not on the stor but the timeline.we dont no how long gods time is.i could put this on ther btterbut ive gotta go.i could tell u better some other time if i wasnt already late

Answer 4

Actually theres a theory that the universe gets smaller over  years and years. I belive we might never really find the answer since we cant back in the past yet.

Answer 5

k dude,

The Big Bang might be when time began, maybe nothing was there before.

The universe began as a tiny, hot, dense little ball which grew as big as a pumpkin.  

Then, a split second later, "space" swelled a thousand billion billion billion times in a fraction of a second.

As the universe mushroomed out, it flooded with energy and matter.  Basic forces like gravity and eletromagnetism were made.  There werent any atoms but just a bunch of soupy-ish particals such as quarks.

Everything divided into matter and antimatter.  matter and antimatter cant exist together and they destroyed eachother.  There was only a lil bit more matter so matter won.  so with that there was empty space in the universe.

Quarks began to join up to form the tiniest atoms, hydrogen.  then hydrogen atoms joined to make helium atoms.  soon the universe filled with clouds of hydrogen and helium.

The universe is expanding at this moment, there is a theory called the big freeze which is when the universe stops expanding and contracts and compacts into like nothing.

Answer 6

scientists think that 2 planets crashed together to make earth.But i still dont understand how animals and people came

Answer 7

Theory of Big Bang, started when Hubble discovered that universe is expanding.

Question arise why is it expanding, so they calculated that if its expanding at this rate then at a point of time, the whole universe must've started from a single point, thus theory of big bang was born.

Let me give you a totally far fetched idea:

Quran

21:30 Do not the Unbelievers see that the heavens and the earth were joined together (as one unit of Creation) before We clove them asunder? We made from water every living thing.  Will they not then believe?

Answer 8

The Big Bang predicts a single occurence of the universe. A universe that would end sometime when every star is very far from each other.

Answer 9

The Big Bang is the cosmological model of the universe that is best supported by all lines of scientific evidence and observation. The essential idea is that the universe has expanded from a primordial hot and dense initial condition at some finite time in the past and continues to expand to this day. Georges Lemaître proposed what became known as the Big Bang theory of the origin of the Universe, although he called it his 'hypothesis of the primeval atom'. The framework for the model relies on Albert Einstein's General Relativity as formulated by Alexander Friedmann. After Edwin Hubble discovered in 1929 that the distances to far away galaxies were generally proportional to their redshifts, this observation was taken to indicate that all very distant galaxies and clusters have an apparent velocity directly away from our vantage point. The farther away, the higher the apparent velocity.[1] If the distance between galaxy clusters is increasing today, everything must have been closer together in the past. This idea has been considered in detail back in time to extreme densities and temperatures, and large particle accelerators have been built to experiment on and test such conditions, resulting in significant confirmation of the theory. But these accelerators can only probe so far into such high energy regimes. Without any evidence associated with the earliest instant of the expansion, the Big Bang theory cannot and does not provide any explanation for such an initial condition. The theory accurately explains the general evolution of the universe since that instant.

A major success of the theory is its ability to account for the comparative abundance of the elements we find around us, which if you look beyond Earth is mostly hydrogen and helium. The observed abundances of the light elements throughout the cosmos closely match the calculated predictions for the formation of these elements from nuclear processes in the rapidly expanding and cooling first minutes of the universe, as logically and quantitatively detailed according to Big Bang nucleosynthesis and well described in Steven Weinberg's classic The First Three Minutes.

The term 'Big Bang' was apparently first coined by Fred Hoyle in a derisory statement seeking to belittle the credibility of the theory that he did not believe to be true.[2] Ironically, Hoyle helped considerably in the effort to figure out the nuclear pathway for building certain heavier elements from lighter ones. At any rate, after the discovery of the cosmic microwave background in 1964, and especially when its collective frequencies sketched out a blackbody curve, most scientists were fairly convinced by the evidence that some Big Bang scenario must have occurred.

Answer 10

There are any number of concepts, but none of them can be scientifically verified, although some who post answers to this type of question present the concepts as though they're etched-in-stone facts.

When talking about either 'what' came before the Big Bang that created our universe, or 'what' lies beyond our universe there's no way that any of the myriad concepts can be invoked without either infinity, an absolute void, or some kind of metaphysical First Cause necessarily entering the picture.

One idea is that our universe has dimensions other than those we're familiar with. How many other dimensions? Six? Eleven? A billion? Assume that there are a hundred additional dimensions. That would leave us right back where we started -- what's beyond those hundred dimensions? The only answer is there must be an infinite number of dimensions.

Another notion is that our universe started when it collided with another universe. Okay, again the original question isn't answered because we're left still hung up on the original question -- what's beyond our universe and the one we collided with?

Then there's the idea that there's some 'mother' universe that spawns other universes. Back to the same question -- what's beyond this 'mother' universe? If there's nothing then it must be infinite.

By calling up Heisenberg's Uncertainty Principle concepts have been developed stipulating that every time a decision is made, like you turn left instead of right at some crossroads, or an atom "decides" to decay, another universe branches off in which the opposite decision is made. Here again the question is 'where' or 'when' did such critical decisions begin? After the Big Bang? That puts us right back at square one -- what was before that?

Answer 11

A BIG BANG... is a theory in a utmost minion particulate form as compared to the Origin of the Universe : Cosmos.

To inculcate and imbue self with the worths of understanding in the epitomised form of representational Image... please do ponder to draw an conceptive percept that "How our Life Journey as an Individual started... and from where"

No Doubt it too was a Big Bang... when two gametes, one from male to the other of feminine origin in-formed themselves into our first form of existence called Zygote.  Thereafter the cyclic-process of fission & fusion started ahead to be an embryo... fetus and then an infant, with furtherance developmental origin unto we ourselves of date as Beings...  cyclically,  again ready with the said process of Big Bang with our independant gametes.

Similarly, in certitude of above explained, just to apprehend  Our Solar System,  please do epitomise it with a meagre replica of a One ATOM, which is a responsible Cosmic-stuff  that makes & builds all of Macro & Micro Entities... may it be a Human or its Sub-Genetic Origin, or the infinite meta-subjects of Solar, Galactic, Clusterial and beyond as a divine cycle of  FUSION & FISSION.

Only a meagre known part of applied understanding has made certain league of scientist to extrapolate the situational presents as a BIG BANG theory... thats on & all.

Short of Long.... " Joh Brahmande soh Pinde, Joh Khoje soh Pavhe"

"Whatever is there in Macrocosm, all exuisite alikes are there in Microcosm"

Answer 12

First of all, alternative theories have a lot of trouble explaining the major successes of the Big Bang theory. BB theory provides 1) a prediction that corresponds to the observations of the abundance of light elements in the universe. 2) an explanation for Hubble's law and for the cosmic microwave background.

That said, here are some alternatives:

- The "tired light theory" proposed by Fritz Zwicky in the 30s: light loses energy  due to the distance traveled.

- Redshift quantization: the hypothesis that the redshifts of  distant galaxies tend to cluster around multiples of some particular value.

- Plasma cosmology (Alfvén in the 60s): the development of the visible universe is due through the interaction of electromagnetic forces on astrophysical plasma.

Answer 13

The entirety of space is expanding (fact).  The Big Bang Theory (which in scientific lingo theory is almost fact) focuses on that at one point all of these objects were closer together.