How Did the Universe Begin?

The prevailing scientific theory is the Big Bang, which proposes that the universe began approximately 13.8 billion years ago with an extremely hot, dense state. In this theory, the universe rapidly expanded and cooled as time went on, allowing the formation of atoms and eventually stars and galaxies. However, the exact mechanisms and conditions that led to the Big Bang and the existence of matter and energy remain subjects of ongoing scientific inquiry and exploration.

Disclaimer: This summary may have been generated by an AI.