Question

What’s the Big Bang theory?

Answer 1

The Big Bang theory is a scientific explanation of the origin and evolution of the universe. It proposes that the universe began as a tiny, infinitely hot and dense point, also known as a singularity, which rapidly expanded and cooled down approximately 13.8 billion years ago. This rapid expansion caused matter and energy to spread throughout space and time, eventually leading to the formation of galaxies, stars, and planets. The Big Bang theory is supported by a wide range of observational and theoretical evidence, including the cosmic microwave background radiation, the abundance of light elements in the universe, and the observed large-scale structure of the universe.