How the Big Bang took place is a question that is still unanswered. According to theory, the universe was formed from the Big Bang. If you meant to ask how scientists came to this conclusion, I will answer. When astronomer Edwin Hubble observed the stars, he noticed that almost all stars are moving away from Earth(seen by red-shift of the observed light coming from the stars). If all stars are moving away from each other, it must mean that at one point, all these stars and everything else were concentrated at a single point. It was then concluded that the Big Bang threw out all matter into space.
You are right. Scientists do believe that the universe started with what is called the "Big Bang". They are not certain yet, but as near certain as they can be. So, they are now working on theories of what started the Big Bang.
A natural scenario, that is not yet a scientific theory but is consistent with all current knowledge, is one such explanation of the origin of our universe:
At first, the universe was pure vacuum ("nothing"). By means of a random quantum fluctuation the universe 'tunnelled" from pure vacuum to what is called a false vacuum, a region of space that contains no matter or radiation but is not quite nothing.
The space inside a bubble of false vacuum is curved, or warped, and a small amount of energy is stored in that curvature. This ostensible violation of energy conservation is allowed by the Heisenberg uncertainty principle for sufficiently small time intervals. The bubble then inflated exponentially and its curvature energy transformed into matter and radiation. Inflation stopped and the more linear big bang expansion commenced.
Notice that in all this, God is not required. For those who believe, scientists have no problem allowing that God played some part, as long as the laws of nature are not broken and there ultimately is a natural explanation. If faith gives God a role in the origin of the universe, then scientists allow faith to decide the origin of God - they do not seek to provide an answer.
For more information, please visit: http://christianity.answers.com/theology/the-story-of-creation
besides religeous, ithink the big bang theory is the closest It is now generally accepted that the Universe started with a Big Bang; a huge explosion, all current matter originally being concentrated in an extremely small space. Even space itself has been expanding after that. What brought this Big Bang into being is currently unknown. The religious explanations you are not interested in, after all, are not a complete answer: for those who believe in God, it is not enough to know that God created the Universe, some of us also want to know how He did it!
The big bang or God created it. Mostly the big bang is the scientific reason and God is the religious reason.
It is quite clear, from observations, that the Universe is expanding, and that it started from a very hot and very dense start, currently called the "Big Bang". It is not quite clear where the energy came from; there are several speculations about this, but there is not much evidence about what happened before the Big Bang - or whether there even was a "before".
If you are referring to the Big Bang, I am afraid that there is not really an answer for you. Cosmology (the study of the universe and its origin) is such a recently developed science that there is yet not way to explain why the Big Bang occurred in any terms more than conjecture. It is thought to have been caused either by a collision or rubbing together of other universes, or a presence of enough room in the 'multiverse' for another universe to form. If you really want to pursue an answer to this question, the best answer I can give you is this: become a cosmologist.
The Theory of Relativity was created by Einstein, not by Eisenstein. Comment: The most obvious thing is that Einstein's equations predicted that the Universe was not "static". So a "Big Bang", expanding Universe fits the theory.
When the big bang theory started the universe, light was created.
actually the big bang is something I don't believe in I believe the universe was created by God
The best theory is that all matter was created at the Big Bang
The big bang began the expansion of spacetime with great rapidity. The Universe began with the Big Bang. In other words both space and time began at the big bang. The big bang started the Universe from the point t=0.
A closed Universe.
The universe began approximately 13.7 billion years ago. The big bang theory describes how the universe was created, and began to expand rather rapidly.
universe started moving away
The big bang or a wormhole
because it explains about universe
Our concept of the "big bang" has no explanation about how or why, but our hypothesis is that there was NOTHING before the Big Bang created the universe.
Scientists believe the "first event" in the Universe was the Big Bang. The Big Bang Theory attempts to explain how the universe was originally created.
It is what created the universe