Big Bang Theory Definition Astronomy

Big bang model widely held theory of the evolution of the universe.

Big bang theory definition astronomy.

Following the inflationary period the universe continued to expand but at. In physical cosmology cosmic inflation cosmological inflation or just inflation is a theory of exponential expansion of space in the early universe the inflationary epoch lasted from 10 36 seconds after the conjectured big bang singularity to some time between 10 33 and 10 32 seconds after the singularity. The big bang theory is the leading explanation about how the universe began. Its essential feature is the emergence of the universe from a state of extremely high temperature and density the so called big bang that occurred 13 8 billion years ago.

The big bang theory is a cosmological model of the observable universe from the earliest known periods through its subsequent large scale evolution. 2008 howstuffworks the big bang theory describes the development of the universe from the time. At its simplest it talks about the universe as we know it starting with a small singularity then inflating over the. The universe originated billions of years ago in a rapid expansion from a single point of nearly infinite energy density.

The short and skinny on the big bang. It is the idea that the universe began as just a single point then expanded and stretched to grow as large as it is right now and it could still be stretching. Meaning pronunciation translations and examples. The big bang theory depends on two major assumptions.

While many people believe that the big bang theory refers to an explosion it actually refers to the expansion of the universe. The universality of physical laws and the cosmological principle the cosmological principle states that on large scales the universe is homogeneous and isotropic. Big bang theory definition. The big bang is how astronomers explain the way the universe began.

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. Although this type of universe was proposed by russian. In astronomy the big bang theory is a theory that suggests that the universe was. How the big bang theory works.

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.