Big Bang Theory Science Definition

Big bang theory definition a theory that deduces a cataclysmic birth of the universe big bang from the observed expansion of the universe cosmic background radiation abundance of the elements and the laws of physics.

Big bang theory science definition.

The big bang is how astronomers explain the way the universe began. Define big bang theory. A scientific theory describing the origin of all space time matter and energy approximately 13 7 billion years ago from the violent expansion of a. The big bang theory is a cosmological model of the observable universe from the earliest known periods through its subsequent large scale evolution.

Then between 10 billion to 20 billion years ago the exact timing is not. Breaking down the definition and history behind the prevailing scientific theory about the origin of the universe the big bang theory. The big bang theory is the leading explanation about how the universe began. The big bang is a scientific theory about how the universe started and then made the stars and galaxies we see today.

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. Astronomers have a model that explains how the universe. At its simplest it talks about the universe as we know it starting with a small singularity then inflating over the. The big bang is the name that scientists use for the most common theory of the universe from the very early stages to the present day.

The big bang theory tells us that the entire universe was once condensed in the form of a primeval atom or a dense mass.