Big bang theory means "the beginning of Universe .
i know that i want the easy description about big bang
The Brainliest Answer!
Some people say that big bang was kind of a explossion but its not true. Big bang was the process by which aan atom started to expand.....the universe is still expanding and due to this expansion a huge amount of energy was released and gases formed by these gases the stars formed and when stars died they formed planets
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