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This is an area of active research... meaning, nobody really knows. The visible Universe has a radius of about 46 billion light-years. According to the "inflation" theory (basically, the modern version of the Big Bang theory), the total size of the Universe MIGHT be millions or billions of times bigger.
What else can I help you with?
How big was it big bang?
The expansion of every part of our Universe was as big as our Universe -- which, if not infinitely large, is pretty big.
What does the Big Bang theory tell us about the universe?
The Big Bang Theory tells what happen at the begning of the universe. How the Earth comes into the universe
What are some questions about the Big Bang theory and its implications for the origin of the universe?
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?
What was the first event in 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.
What is a result of 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.
How the temperature of the Universe dropped after the Big Bang?
The big bang was the BEGINNING of the universe so there was no temperature before it :P
If there was no universe or plants where did the big bang happen?
It happened in the center of the universe, for which it is still expanding on the universe.
Why is the universe so big - you will never populate it?
The universe is so big and it will never be completely populated because it includes areas that are unlivable. The Earth is part of the whole universe.
What is big universe or galaxy?
the universe is bigger than the galaxy because our galaxy (the milky way) is in the universe.
Is there any chance to occur the big bang without 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.
What are the theory's about the universe?
Well I do now one theory about the universe. It's the big bang theory. The big bang theory is a theory about how the universe was created.Scientist think that a big explosion created the universe.Scientist found lots of evidence that the big bang theory was true.
What is the accepted name for the theory which explains the formation of our universe?
The Big Bang is the theory that was developed to describe the origins of the universe.
