Question

What is big bang theory..????PLZZ explain it nicely as I'm a astronomy LAVOSIER!!!

Answer 1

Big Band Theory=> In a astronomy, The universe originated billions of years ago in an explosion from a single point of nearly infinite energy density-compare steady state theory.

Answer 2

The Big Bang Theory of Georges Lemaître is one of the interpretations on how the Universe started or the birth of the Universe that is believed happened 13.8 billion years ago.