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.
Big bang theory timeline.
Since the big bang 13 7 billion years ago the universe has passed through many different phases or epochs.
In inflationary models of cosmology times before the end of inflation roughly 10 32 seconds after the big bang do not follow the same timeline as in traditional big bang cosmology.
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.
In this theory the big bang is just the latest big bang in an endless stream of big bangs in the continual expansion collapse and renewed expansion of space and time.
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.
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.
Timeline of the big bang theory.