Question

what is big bang what do you mean by big bang​

Answer 1

The Big Bang theory is a cosmological model of the observable universe from the earliest known periods through its subsequent large-scale evolution.

Answer 2

Answer:

The explosion of an extremely small, hot, and dense body of matter that, according to some cosmological theories, gave rise to the universe between 12 and 20 billion years ago. Compare big crunch steady state theory. See also open universe.

Explanation:

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