What is the theroy about the "Big Bang" and who thought of it?
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A Belgian priest named Georges Lemaitre proposed that the universe was formed by a large explosion of an atom.
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No one "discoverd" the Big Bang - it is a theory, not a fact - just like evolution.\n\nIf you believe in God and believe that God created the universe you can still believe in the Big Bang theory - it may be the method in which He created the universe. \n\nBut to believe in the Big Bang theory without believing in God is a Big Mistake. "Nothing" cannot begat something, whether it is the universe, or life. To believe that out of nothing all of a sudden something came into existence defies good science. Even science iteself had to start somwhere - it could not come out of nothing!\n\nLife did not begin in some premordial ooze as the result of a reaction between certain chemicals catalyzed by sunlight. That theory is sheer stupidity and requires more faith to believe than it does to believe in God.
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The Big Bang didn't happen in a place.  Space and time were created in the big bang. The Big Bang is a theory to explain universal/spatial expansion. \n\nI think it's easiest to look at the idea this way. Scientists have observed that everything past our local galactic cluster seems to be retreating from us. All observations point to the universe being infinite and roughly uniform in all directions. \n\nIf it's expanding at given rate now, chances are it's slowed down. Go back in time, the universe was denser and expanding faster. Rewind the timeline far enough and you'll come to a period when everything was all bunched together in a massive, undiscernable clump. Then, suddenly, Bang!!! Space! And everything in it... which has been spreading out and slowing down (pretty much) ever since. \n\nTry thinking about it like the air expaning in bread as it rises, or in a balloon as it fills. Everything is moving apart from everything. Only the universe has been infinitely large from the get go. It's almost like someone just keeps adding empty space in between everything.\n\nIf it helps at all, the center of the big bang for the visible universe was the same place the center of the visible universe always is. Wherever you are. From that point, everything you can see was at some moment in the past gethered together in a lump with infinite density.
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The Big Bang Model is a broadly accepted theory for the origin and evolution of our universe. It postulates that 12 to 14 billion years ago, the portion of the universe we can see today was only a few millimeters across. It has since expanded from this hot dense state into the vast and much cooler cosmos we currently inhabit. We can see remnants of this hot dense matter as the now very cold cosmic microwave background radiation which still pervades the universe and is visible to microwave detectors as a uniform glow across the entire sky.\n\nFurther readings:\n    * Peebles, P.J.E., Schramm, D.N., Turner, E.L. & R.G. Kron 1991, "The Case for the Relativistic Hot Big Bang Cosmology", Nature, 352, 769 - 776.\n    * Peebles, P.J.E., Schramm, D.N., Turner, E.L. & R.G. Kron 1994, "The Evolution of the Universe'', Scientific American, 271, 29 - 33.\n    * Will, Clifford, "Was Einstein Right?"
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No one anywhere has the answer to your question, or even if there was any "thing" before the Big Bang. The religious crackpot fundamnetalists certainly don't have the answer! By definition, the universe is everything there ever was, is now, or ever will be. At the instant of the Big Bang, all space-time and energy that will ever exist was created.\n\nGod is spelled B-I-G B-A-N-G\nPBrax@netscape.com
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The Big Bang \n\nAbout fifty years ago, American astronomers studying the galactic star clusters, stumbled on evidence that the entire Universe is blowing up before our eyes. According to their observations, all the galaxies in the Universe are moving away from us and from one another at very high speeds, and the most distant are receding at the extraordinary speed of hundreds of millions of miles an hour.\n\nFirst there was nothing and it blew up and then there was everything and scientists have calculated that it all happened in 1043 of a second. [The] echo of that explosion can still be heard bouncing around in space. Scientists claim that in the big bang all of the fundamental particles necessary for life were formed. All of the complexity we see around us is the result of this massive explosion.\n\n"The new finding hit the scientific world like a thunderclap." It meant that the idea of an ultimate beginning was no longer merely religious dogma. Science itself now indicated that the universe burst into existence at a particular time in the remote past.\n\nIn 1992 measurements by the Cosmic Background Explorer (COBE) and by the Hubble Space Telescope seemed to confirm beyond any reasonable doubt that the Big Bang cosmology is indeed correct. George Smoot, Professor at the University of California at Berkeley and Principle Investigator of the COBE team which made the discovery, said regarding these new observations, "What we have found is evidence for the birth of the universe . . . It's like looking at God."\n\nWorking backwards, the evidence implies that there was a time when the universe was infinitesimally small. The evidence from general relativity also indicates that it was not merely a case of the matter in the universe being concentrated at a particular location, but that space itself was this tiny. At a sudden instant in time all of the energy and mass in the universe was located at this infinitesimally small point and exploded. The currently observed outbound motion of the galaxies from each other is a continuing effect of that explosion.\n\n"The scientific community is prepared to consider the idea that God created the universe is a more respectable hypothesis today than at any time in the last 100 years," Frederic B. Burnham, science historian, declared.\n\nHowever, some die-hard secularists propose that the universe goes through endless cycles of expansions and collapses. Hence, eternity becomes nothing more than an eternal succession of big bangs followed by big crunches followed by big bangs followed by big crunches over and over again and again forever.\n\nBut this violates the second law of thermodynamics, the law of decay, that implies that the universe is in a process of gradual disintegration - running down, like a wound-up clock. And if it is running down, then there must have been a time when it was wound up. Once the big bang takes place and the universe begins its expansion, entropy starts to increase. From this point on it will never be able to go back to its original state.\n\nWhat's more, the first law of thermodynamics (the conservation of matter) implies that matter cannot just pop into existence or create itself. And therefore, if the universe had a beginning, then something external to the universe must have caused it to come into existence - something, or Someone, transcendent to the natural world.\n\nThe facts clearly indicate that the universe is not eternal, and it cannot originate itself The implication is that the universe began at a definite moment in time, in a flash of light and energy. Science has begun to sound eerily like Genesis 1: "And God said, 'Let there be light"' (1:3).\n\nThe evidence requires that we believe God formed the universe at His command, pointing to the importance of taking God at His word literally - from the beginning both of time and the Bible. Second, there is such a striking parallel between the Hebrews 1
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That is what science is trying to figure out.\n\nOne theory is that all matter and energy exploded in a Big Bang from a point particle or singularity.\n\nHowever, current technology prevents us from going back to time zero or the origin of the universe. At a point in time (just s tiny fraction of a second before the Big Bang) all laws of physics break down and yields meaningless answers.\n\nThere are several other theories as well. Another thought (that has been largely abandoned) is that the universe was continually expanding, in cycles, from a Big Bang to a Big Crunch.\n\nThere is another theory that the universe is constantly folding over on itself, continuously annihilating and creating itself.\n\nAnd in quantum physics, the is a concept which even suggest that reality, all of human experience, may be nothing short of a personal subjective concept without substance at all.\n\nQuantum physics is a mysterious world that suggests that many of our concepts are too limited and that there are worlds we can't even imagine (parallel universes, many worlds, branes, dimensions, steady state, etc.)\n\nOur knowledge and understanding of the universe is akin to the knowledge and understanding that an ant has of the world economy.
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The short answers are:\n\nNobody really knows,\n\nand,\n\nYes, it's possible the universe is collapsing.\n\nIn fact, it's amazing how little we really "know" about the universe.\n\nOf course that just encourages people to propose more theories. After all, to get a Phd you only have to write a thesis, you don't have to prove it! Yes, you have to "defend" it, but that's not the same as proof.\n\n"The Big-Bang", "String Theory" (proposed to prevent the Big-Bang from collapsing) and "Steady-state Universe" are all conjectures based on imagination. So far, there is only contradictory evidence to support any of these theories. We'll have to await the next Einstein to sort it all out!\n\nBy the way, what has Hawking contributed to cosmology? I've read his stuff, and all he does is elaborate on other's thinking. Just like Carl Sagan. I think both are overrated and unoriginal.
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Science at this point does not know what caused the big bang. Or if there were multiple big bangs. \n\nBy the way, evolution has nothing to do with the big bang,other than they are both governed by natural laws of the universe (some have said these are God's Laws, or Maimonides equated these natural laws with angels, if that makes you feel any better). \n\n\nI have attached a paper on the big bang you might find enlightening.
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There is a theory that the big bang was a result of a collison of two other universes. Say there is this sphere and inside this sphere there are other gelatinous spheres, these are the other universes, and two collided in a way that they created a big exlosion, which is the Big Bang.
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In physical cosmology, the Big Bang is the scientific theory that the universe emerged from a tremendously dense and hot state about 13.7 billion years ago
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Mathematetically, philosophically, nothing. That has been the big question since Einstein theorized that the universe had a beginning. The question moves from the realm of science, a process of theory and discovery, to revelation, a process of information delivery. In short because nothing (not mathematic formulas, time, energy, literally anything) existed the only way for us to know what happened prior to the Big Bang is by devine revelation. Science has struggled with this idea for a long time and many theories have been proposed but all theories proposed require a moment when nothing existed and then suddenly there is existence. This is the principle behind the Cosmological Argument. Briefly since everything that exists has a cause, the universe exists, it must logically have a cause. I would encourage you to read, 'When Skeptics Ask', by Norman Geisler or 'I Don't Have Enough Faith to be an Atheist', by Geisler and Turk. Good luck on your search.
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The Big Bang occured around 14 billion years ago, the earth didn't come into existence until about 4.6 billion years ago.  The earth did not exist when the Big Bang occurred, therefore the Big Bang could not have destroyed it.  \nThe name "Big Bang" is a misnomer, there wasn't really a "bang", the name comes from a nickname given by supports of the old Steady State Theory, which now has very little to no support.\nThe explosion cooled, allowing the four main forces of the universe (gravitational, the electromagnetic, the strong, and the weak forces) to split apart.  Matter finally arose out of the energy created by the "bang", forming a plasma of quarks, gluons, and leptons.  These finally coalesced into protons and neutrons (via the strong force), finally they formed atoms by uniting with electrons via the electromagnetic force.  \nMatter coalesced via gravity into star and galaxies.  Planets arose from extra material not bound into stars.  \nI think God caused the Big Bang, but he didn't just "bang" it into existence as you put it.  If he did, why did he spend three or four days on one little planet in the entire cosmos, and spend only a single day on the rest of the universe.  I think it is rather illogical.
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This is a tricky question.  Here is what I found in "The elegant Universe":\n\nThe image of the big bang as a cosmic explosion ejecting the material contents of the universe like shrapnel from an exploding bomb is a useful one to bear in mind, but it is a little misleading.  When a bomb explodes, it does so at a particular location in space and at a particular moment in time.  Its contents are ejected into the surrounding space.  In the big bang, there is no surrounding space.  As we devolve the universe backward toward the beginning, the squeezing together of all material content occurs because of all space is shrinking.  The Orange-size, the pea-size, the grain of sand-size devolution describes the whole of the universe--not something within the universe.  Carrying onto the beginning, there is simply no space outside the primordial pinpoint grenade.  Instead, the big bang is the eruption of compressed space whose unfurling, like a tidal wave, carries along matter and energy even to this day...\n\nBottom line: The big bang took place everywhere!\n\nIf you don't believe in the big bang, then you better believe that the Earth is flat!\n\nThe idea of the big bang is mentioned in the quran:\n"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?"(21:30)
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The short answer is: we don't know!\n\nWe may never know but this might help you a little.\n\nBefore the big bang there was nothing, absolutley nothing.\nThere wasn't even any space (no dimensions). Even if you had one atom of matter you couldn't put it there because there was no space for it. Do you follow me?\n\nThe big bang not only created all the matter and energy we see in the universe today but also the space/time for it to go in.\n\nRemember we live in 4 dimensions, 3 spacail dimensions and 1 time dimension (time direction)\n\nBefore the big bang there was no space, more importantly there was no time.\n\nSome say that with absolutley no time for something to happen in. Something was bound to happen. The Big Bang\n\nRemember, its just theory that appears to fit the observed evidence.
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For your theory to work some 'thing' must exist before the Big Bang event and in which it could occur. Science has found absolutely no evidence whatsoever that any 'thing' preceded the Big Bang.
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Well you are right most of us believes in big bang . The origin of the universe cannot be proven scientifically.The big bang can be believed some how becouse now the stars are dieng and are born .Well this may be how the universe must have been formed