Question

What does big bang theory states
GPT 3.5
The Big Bang Theory states that the universe originated from a singular extremely hot and dense point around 13.8 billion years ago. This point rapidly expanded and cooled, leading to the formation of galaxies, stars, planets, and all other matter that we see in the universe today. The theory explains the observed expansion of the universe, the cosmic microwave background radiation, and the abundance of light elements in the universe.