if the big bang theory is correct where did the original components come from?( nitrogen ,oxygen etc)?
955705
If the theory is indeed correct, the only possibility is that matter/energy pre-existed the "big bang", and all that the "big bang" accomplished was rearranging things.  This is perhaps an interesting theory on how things were formed from pre-existent matter, but hardly a good explanation of the origin of matter.  It has been fairly well established that matter and energy are somehow the same thing.  According to the law of entropy, if energy always existed, it would inevitably (after an infinite period of time) be evenly distributed by the actions of random process.  Since this is not the case (stars are obviously hot spots in the soup of matter), matter cannot possibly be infinitely old.  So we find ourselves coming back to the question of origin, again...
297935
Big Bang is a theory that tries to explain the formation of the universe, its galaxies, its stars and planets etc.\n\nIt says that the Universe was created by an explosion of a Primeval Atom thus causing it to expand and move away from each other. This was actually based on the Hubble Law which says that Galaxies around us are expanding at speeds directly proportional to their distance from Earth, based on the observation of Edwin Hubble, 1929.\n\nIts a huge topic with lots of technical arguments and counter arguments. Here is the link that will satisfy your quest on Big Bang, atleast for starters...\n\n.:Fishie:.
1062186
At the center of the universe is a giant black hole, or the remains of a singularity, or God. It is all a matter of perspective and personal beliefs.\n\nThe Big Bang theory states that all was created from a singularity, a dimensionless point of energy that burst forth in a huge explosion. As the energy dissipated it cooled and became particles which came together to create atoms, then clouds of atoms became stars, galaxies, planets and us. But did all of the energy expend itself from that singularity? Or does some of it still exist there?\n\nAstronomers now believe that every galaxy is formed around black holes. Extropolating, that would suggest that all matter is formed around a massive black hole.\n\nAnd the Creationists believe that everything was created by God and that of course God is the center of everything including the universe.\n\nBut now string theory in its latest form suggests that the universe was created by the collision of two extra-dimensional membranes. And that the comic book / science fiction concept of multiple universes may actually exist. So maybe Robert Heinlein was right all along. I wonder where the Gay Deceiver is parked now?\n\nTake your pick.
188040
Absolutely.\n\nIt is now thought (and even more radio telescope survey evidence on this has just come in) that at the very beginning of things (the Big Bang) there was nothing but energy. As the Universe expanded and cooled, elementary particles were formed from that energy, and some time later, things cooled enough for atoms to form and stay together. Since it takes force to push protons together (to form nuclei of the higher atomic number atoms), and the force wasn't available, only hydrogen (and a very small amount of helium and perhaps an even smaller amount of lithium -- the simplest atoms) resulted.\n\nLots of hydrogen, distributed in a sort of clumpy manner, will eventually collapse into stars. Large stars burn through their available fuel relatively quickly, all the while forcing together protons into more complex atoms such as carbon and oxygen and silicon, and so on. When these large stars go nova, they spray a good part of themselves into interstellar space where the material is incorporated into newly forming stars or collected into clouds around them. As those clouds collapse into planets (which must be very common as we have now seen some hundreds of them around stars in the local area in our galaxy (ie, within a few hundred light years)), the non-hydrogen material in them is actually star stuff. Probably not really dust particles in most cases, but...\n\nAnd that's how it was. Fascinating stuff.
602699
where did the first energy came from, to produce the BIG BANG. Becaseu there is that law, that there is no perpetum mobile, meaning, that everything needs the first impulse of energy. further, energy can be exchanged and such, but not produced from nothing. so how could the big bang happen out of nothing.
518764
Earth wasn't invented (at least not if you listen to common sense), it was created from abiotic (non-living) sources. It started when hydrogen and helium clouds turned into stars because of their gravitational force. These stars then developed other simple elements like oxygen, nitrogen and carbon (necessary for organic compounds) these brought about nebulas which made simple compounds. Eventually matter formed into large masses that became planets, comets, and asteroids.
795885
The Big Bang theory is a scientific theory in cosmology, initially suggested by Georges Lemaitre. It is essentially the most widely accepted theory about the universe's origin. \n\nThe idea is that the universe was created sometime between 10 billion and 20 billion years ago (current estimate ~13.5 billion) from a cosmic explosion that hurled matter in all directions. Before that point all matter was concentrated at an infinitessimal point, known as a singularity. \n\nThe idea was most strongly propounded after the astronomer Edwin Hubble (after whom the famous telescope is named) found in 1929 that distant galaxies in every direction are going away from us with speeds proportional to their distance, suggesting at some point they were all at a single point. The theory also predicted the existence of a cosmic background radiation (the glow left over from the explosion itself). and received widespread acceptance when this radiation was actually discovered by Arno Penzias and Robert Wilson in the 1960s.
344626
So atheists:  Where did the evolution come from? Where did the cell come from? Where did molecules come from? Where did the "BIG BANG" come from?
46644
Even though big bang theory suggests the origin of universe from singularity, there are many questions unanswered. There are theories that suggest that big bang is not the starting point but part of a cyclical process of several big bangs and collapes happening from time to time. The concept and understanding of infinity, multiverse and timelessness are beyond our comprehension and so looks complicated. I believe in multiverse with its own space-time. String theory explains it more. I would think of universe as being a big bubble with its own space and time and when collided with another bubble(another universe) would create chaos (or may be not) and eventually form a new universe. And this might be taking place with several universes at different levels(dimensions). This might or might not be true, but just wanted to throw my thought. Additional comments/thoughts are always welcome.
409220
big bang didnt produced planets. it produced gases and small particles. when the gases started concentrating at a point in space, they experienced huge forces of gravity. and thus got molded in a shape which offers minimum volume(SPHERE).
76972
Science has no way of knowing what, if any, conditions existed before our universe began. There are any number of theories, but at this time absolutely no way to prove or disprove them. One of the more popular ideas is that our universe is merely a "small" bubble contained within some infinite Mother Universe. Another theory turns to quantum physics and string theory to try and describe our 4-D universe being "folded" up in a larger cosmos of higher dimensions.\n\nIt wasn't until some .000001 second after the Big Bang that the temperature of the universe had cooled enough (still more than 10e12 Kelvin)for a quark-gluon plasma to form. At .0001 second the temperature was down to 10e12 Kelvin and the first protons and neutrons emerged from the initial plasma
1067093
Order doesn't come out of chaos. In other words, a big chaotic bang didn't create the complex human being and the world with all its amazing attributes. So, we know something created us. Either an "accident" (the big bang) or an intentional act by someone/something ("Creator"). And honestly, which makes more sense? I find it irrational to believe that an explosion of gases in outerspace could produce human beings and animals and even something like a snowflake.
75867
According to the Big Bang Theory, time started during the Big Bang, and since there was no time before the big bang, there is no such thing as "before the big bang".
216115
The total amount of energy/matter (they are one in the same) in the universe now is exactly the same as it was an instant after the Big Bang.  As for where the Big Bang came from, I think you have to be a deity to know that one.
564094
georges lemaître derived equations from general relativity and proposed that the universe began with an explosion of an extremely dense particle of matter.  the theory was later developed by george gamow, alan guth, and others. the big bang theory is no longer like georges lemaître's original hypothesis.  fred hoyle inadvertently gave the theory its name in a dismissive remark.\n\nread these pages:\nhttp://en.wikipedia.org/wiki/Big_Bang\nhttp://en.wikipedia.org/wiki/Cosmic_infulation\nhttp://en.wikipedia.org/wiki/Georges_Lema%C3%AEtre\nhttp://en.wikipedia.org/wiki/George_Gamow\nhttp://en.wikipedia.org/wiki/Alan_Guth\n\nalso read this page:\nhttp://www.sciam.com/print_version.cfm?articleID=0009F0CA-C523-1213-852383414B7F0147
789855
I go with the Big Bang theory and that our planet just happened to be in the right place at the right time. If our planet grew life then there is the possibility that other planets in other galaxies grew life as well. We just happened to get the right amount of heat and light from the sun.
891624
i'm not sure how you consider it mathematically unlikely - where's your working for that?\n\nThe theory is that yes, the matter in the universe can from the dense plasma that expanded from the singularity that began the big bang.  Howver, if dark matter theory is to be believed, there is a lot of matter unaccounted for - but it is still likely to have originated from the Big Bang