If the universe was born with a big bang, where did this big bang take place ?
345556
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)
1138756
It resulted from the big bang. Time and space and matter and energy all started then. What existed before and why it occurred is for the philosophers to ponder. I'm content with the fact that we don't know everything right now. We might someday though.
477793
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
959365
It is explosion of Gamma ray that led to the Big Bang as per the theory which is not fully scientifically proved as yet. Because, now also there are Gamma ray explosions take place in the Space from where stars and other Cosmic bodies are formed. Matter formation is billions of light years after the Big Bang.\n\nFor more, please read the fascinating book by Carl Sagan, 'Cosmos'.
588112
Just check this link and go thru the following article also\n\nhttp://www.big-bang-theory.com/\n\nBig Bang Theory - The Premise\nThe Big Bang theory is an effort to explain what happened at the very beginning of our universe. Discoveries in astronomy and physics have shown beyond a reasonable doubt that our universe did in fact have a beginning. Prior to that moment there was nothing; during and after that moment there was something: our universe. The big bang theory is an effort to explain what happened during and after that moment. \n\nAccording to the standard theory, our universe sprang into existence as "singularity" around 13.7 billion years ago. What is a "singularity" and where does it come from? Well, to be honest, we don't know for sure. Singularities are zones which defy our current understanding of physics. They are thought to exist at the core of "black holes." Black holes are areas of intense gravitational pressure. The pressure is thought to be so intense that finite matter is actually squished into infinite density (a mathematical concept which truly boggles the mind). These zones of infinite density are called "singularities." Our universe is thought to have begun as an infinitesimally small, infinitely hot, infinitely dense, something - a singularity. Where did it come from? We don't know. Why did it appear? We don't know. \n\nAfter its initial appearance, it apparently inflated (the "Big Bang"), expanded and cooled, going from very, very small and very, very hot, to the size and temperature of our current universe. It continues to expand and cool to this day and we are inside of it: incredible creatures living on a unique planet, circling a beautiful star clustered together with several hundred billion other stars in a galaxy soaring through the cosmos, all of which is inside of an expanding universe that began as an infinitesimal singularity which appeared out of nowhere for reasons unknown. This is the Big Bang theory. \n\nBig Bang Theory - Common Misconceptions\nThere are many misconceptions surrounding the Big Bang theory. For example, we tend to imagine a giant explosion. Experts however say that there was no explosion; there was (and continues to be) an expansion. Rather than imagining a balloon popping and releasing its contents, imagine a balloon expanding: an infinitesimally small balloon expanding to the size of our current universe. \n\nAnother misconception is that we tend to image the singularity as a little fireball appearing somewhere in space. According to the many experts however, space didn't exist prior to the Big Bang. Back in the late '60s and early '70s, when men first walked upon the moon, "three British astrophysicists, Steven Hawking, George Ellis, and Roger Penrose turned their attention to the Theory of Relativity and its implications regarding our notions of time. In 1968 and 1970, they published papers in which they extended Einstein's Theory of General Relativity to include measurements of time and space.1, 2 According to their calculations, time and space had a finite beginning that corresponded to the origin of matter and energy."3 The singularity didn't appear in space; rather, space began inside of the singularity. Prior to the singularity, nothing existed, not space, time, matter, or energy - nothing. So where and in what did the singularity appear if not in space? We don't know. We don't know where it came from, why it's here, or even where it is. All we really know is that we are inside of it and at one time it didn't exist and neither did we. \n\nBig Bang Theory - Evidence for the Theory\nWhat are the major evidences which support the Big Bang theory? \n\nFirst of all, we are reasonably certain that the universe had a beginning. \nSecond, galaxies appear to be moving away from us at speeds proportional to their distance. This is called "Hubble's Law,"
1002294
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.
725562
The essence of the Big Bang theory is pretty simple:  sometime billions of years ago the universe began;  everything now in the universe was created from energy/matter that was compacted into a really, really small volume/space, and indeed that really, really small volume/space was all there was to the universe at that moment; and since the universe began, it's been expanding.  These are the essential points of the theory.  Over time, we've added new details, such as pinning down the age of the universe to within a few hundred million years (last I heard, we thought it was 13.7 +/- 0.2 billion years old).  And a lot of theoretical and observational work have gone into investigating and refining the theory.\n\nAs to why we think that there was a Big Bang instead of, say, a universe which had always existed or a universe which came into being pretty much fully formed, the main reason and the reason we started thinking there was a Big Bang in the first place is because of very peculiar observations that we can make of distant galaxies.  This observation is that, except for a bunch galaxies which are both nearby and gravitationally bound to our own galaxy, all the galaxies we can see are moving away from both our galaxy and all other galaxies.  Also, the speed with which a galaxy is moving away from us depends directly on how far away from us it is (e.g. galaxies farther away from us are moving away from us faster than galaxies which are closer).  And the reason we first infered a Big Bang from this is that if you imagine running this movement backwards, doing a cosmic rewind if you will, then all the galaxies will be moving back towards each other, and eventually will all find themselves in the same place.\n\nSeveral years after this observation, a key predicition of the Big Bang theory was verified.  When the universe was young, it was also really hot and so for a time would have given off light all its own (I'm simplifying things a bit, but these are the essential facts as we know them).  It was predicted that some of this light should still be around.  And, lo and behold, at the very same time that people were making this prediction and beginning to think of looking for it, practically right down the road some experimentalists stumbled upon it accidentally.\n\nSo, in short and hopefully simple words, that's what the Big Bang is and why we think it happened.
681947
Yes it all started with dark matter and energy that were under enormous pressure in a molecule and then the big bang was sparked because of this pressure building up. However what was before this and more importantly why it happened no one will ever know. I prefer to follow the scientific explanation of the origins of the universe as opposed to religious ones because it makes more sense and there is proof.
66055
In theory the Big Bang happened in a complete vacuum as there was nothing before it, sound does not travel through a vacuum so no sound, nor was there anybody to hear it so, philosophically speaking, again no sound.
985237
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
199674
God created it. It is endless and boundless....this is proven by the fact that our universe is continuously expanding.\nThe Big Bang is man's attempt to explain something he doesn't understand. It is false.\nWhy? well the answer is simple.....You can't have an explosion from absolute nothing.\nGod created the universe....a simple explanation with no holes in it.
1106396
err the big bang was not really a a collision of matter. All mass and energy in the universe existed at a sigularity, or a dimensionless point. The Big Bang simply expanded and inflated it.
982772
Assuming that the Big Bang Theory is correct, then T=0 started from the moment the Big Bang explosion (estimated to be between 10 to 20 billion years ago), and we should take that initial location of the Big Bang as coordinates 0,0,0.\nWith ever more powerful equipment, we may be able to locate more galaxies clusters on the fringe of the universe, and from the travelling velocities and directions of travel, extrapolate back to the source of the original coordinates, and the elapsed time since the start of Big Bang.  The convergence of such moving bodies (galaxies clusters, galaxies, etc), by extrapolation back to the original source should definitely lend credence to the theory of Big Bang.
515815
According to the standard theory, our universe sprang into existence as "singularity" around 13.7 billion years ago. What is a "singularity" and where does it come from? Well, to be honest, we don't know for sure. Singularities are zones which defy our current understanding of physics. They are thought to exist at the core of "black holes." Black holes are areas of intense gravitational pressure. The pressure is thought to be so intense that finite matter is actually squished into infinite density (a mathematical concept which truly boggles the mind). These zones of infinite density are called "singularities." Our universe is thought to have begun as an infinitesimally small, infinitely hot, infinitely dense, something - a singularity. Where did it come from? We don't know. Why did it appear? We don't know. \n\nAfter its initial appearance, it apparently inflated (the "Big Bang"), expanded and cooled, going from very, very small and very, very hot, to the size and temperature of our current universe. It continues to expand and cool to this day and we are inside of it: incredible creatures living on a unique planet, circling a beautiful star clustered together with several hundred billion other stars in a galaxy soaring through the cosmos, all of which is inside of an expanding universe that began as an infinitesimal singularity which appeared out of nowhere for reasons unknown. This is the Big Bang theory.
1015241
space-time itself originated in the big bang.  everywhere in the universe was once the big bang, and the whole universe was the big bang.  it is actually a common misconception that the big bang occurred at a specific location.\n\nhttp://www.sciam.com/print_version.cfm?articleID=0009F0CA-C523-1213-852383414B7F0147\nhttp://map.gsfc.nasa.gov/m_uni.html\nhttp://universeadventure.org/
207504
No one can say with 100% absolute certainty that the Big Bang happened. However, there's a considerable body of SCIENTIFIC evidence that it did, mainly something called the Cosmic Microwave Background Radiation (CMBR) Many years ago, when the Big Bang theory was being developed, someone figured out just what the temperature could be at the instant the Big Bang event happened (about 1.8^13 degrees Fahrenheit -- that's 1.8 followed by 13 zeros) Then they figured out what that original temperature would be today, billions of years later. In the early 1960's that temperature was actually detected and precisely measured. It almost exactly matched the proposed temperature -- 2.728 degrees above absolute zero -- and has been found to fill all of the observed universe.\n\nGod is spelled B-I-G B-A-N-G\nPBrax@netscape.com
284884
Under the current Big Bang model the center of the universe is nowhere.  Ok. You don't like that, then how about the center of the universe is everywhere.\n\nThe Big Bang was not an explosion, the term "big bang" came from early opponents of the theory.  Basically it was the creation of space itself.  Subsequently that space has expanded, it is not expanding from somehwhere, it is expanding from everywhere.