Tuesday, June 8, 2010

Origin of Universe

One of the most persistently asked questions has been: How was the Universe created? Many people believed that the Universe had no beginning or end and was truly unchanging static infinite.

Through the inception of the Big bang theory,  however, no longer could the universe be considered as static infinite. In physical cosmology Big Bang is the scientific theory of the creation of universe started as very small (tinier than a grain of sand), incredibly dense and unimaginably   hot about some billion years ago and then suddenly exploded into our modern day universe and continues to expand today. The Universe thus stated with a Big Bang – but

we don’t fully understand how or why it developed the way it did.
The theory of Big Bang is the most popular and most widely accepted theory for the origin of the universe, but still leaves many questions unanswered: How and why did the universe expand? Why is the universe the way it is? How it will end? But perhaps, the most daunting question is: What existed before the Big bang? The Big bang created equal amounts of matter and anti-matter, but we only see matter now, the anti-matter disappeared. Experiments have already shown that some matter particles decay at different rates from their antiparticles which could explain the reason for the disappearance of the anti-matter.


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