It is unsure because when the big bang explode, space's dimension is expanding, which means the dimension will go on forever.
Why our Universe is composed almost entirely of matter, with almost no anti-matter in it.
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.
Theoretically yes. String theory and M theory says that when the two universe collide together or split into two universes, that is when Big Bang occurs. However there is no evidence that Parallel universe exists.
The big bang or God created it. Mostly the big bang is the scientific reason and God is the religious reason.
First, we have no information on whether the universe will end, or if it will continue in perpetuity. It's either one or the other - and yet either answer would be astonishing. Second, we have no idea how the end of the universe might come about, or what the conditions at the end time would be, or if the concept of "after the end of the universe" has any meaning at all. One interesting concept is that of an oscillating universe; a Big Bang of expansion, with gravity overcoming everything in the end and pulling every shred of matter back to itself in a "Big Crunch". This could be the prelude to another "big bang". Each universe would be completely new and unaffected by the last.
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.
In the current model of the universe the big bang was the 1st thing to happen in the universe since time itself was created in the big bang.
Some questions about the Big Bang theory and its implications for the origin of the universe include: What caused the Big Bang? How did the universe evolve after the Big Bang? What evidence supports the Big Bang theory? What are the implications of the Big Bang for our understanding of the universe's beginning and future?
The prevailing scientific theory is that the universe started with the Big Bang.
Time, as we understand it, began ticking with the Big Bang approximately 13.8 billion years ago. This event marked the beginning of the universe and the expansion of space-time. Prior to the Big Bang, the concept of time as we know it may not have existed, as time is a dimension that is closely linked to the expansion and evolution of the universe.
The size of the universe at the time of the Big Bang is estimated to have been extremely small, even smaller than a proton. The universe has been expanding ever since the Big Bang occurred approximately 13.8 billion years ago.
The Big Bang Theory tells what happen at the begning of the universe. How the Earth comes into the universe
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.
BANG !
The big bang was the BEGINNING of the universe so there was no temperature before it :P
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.
Right after the big bang happened, the universe was expanding at a speed of light. While it was expanding, it started to cool itself down since the big bang caused the universe to heat up to ridiculous temperature.