Due to the extreme conditions and the violence of its very early stages it arguably saw more activity and change during the first second than in all the billions of years since.
Big bang theory timeline.
According to the steady state theory these quasars should be found all throughout the galaxy but they are only found on the outskirts which supports the big bang theory in which the universe is constantly expanding.
The big bang theory is a cosmological model of the observable universe from the earliest known periods through its subsequent large scale evolution.
Timeline of the big bang theory.
Working backwards from the current state of the universe scientists have theorized that it must have originated at a single point of infinite density and finite.
Since the big bang 13 7 billion years ago the universe has passed through many different phases or epochs.
The model describes how the universe expanded from an initial state of extremely high density and high temperature and offers a comprehensive explanation for a broad range of observed phenomena including the abundance of light elements the.
Models that aim to describe the universe and physics during the planck epoch are generally speculative and fall under the umbrella of new physics.