Question

What is Big Bang Theory?

Answer 1

Big bang theory is a theory that tells how universe, that is space time and matter was formed in the universe. This theory was derived mathematically from equations of general relativity by the Belgian monk Georges Lemaitre that gives a creation point of the universe.

Chief features of Big Bang theory are

1. All points that comprise our universe was confined to a single point of infinite temperature, infinite density and known laws of physics does not hold at that point.
2. An explosion occurred at that point about 13.75 billion years ago and point began to expand, real time started. It can be thought as small marks on balloon being inflated.