Wednesday, September 12, 2018

Gravitational singularity

Gravitational singularity is also called space-time singularity. Gravitational singularity is a location in space-time where gravitational field of a celestial body is infinite and it is independent with coordinate system.

When density in the centre of black hole become infinite then gravitational singularity is considered within general theory of relativity.

The early state of the universe during big Bang the gravitational singularity was exist.  It is thought that once the entire universe was started to expand from a singular point.  This is the concepts of singularity.

A prediction from general theory of relativity is that when any object collapse beyond a certain point tend to form black hole inside which singularity is formed.

According to Penrose-Hawking singularity theorem, singularity is defined as geodesic and can not extend in a smooth manner.

Some theories makes drawback on singularity. Loop quantum gravity says that singularity may not exist.

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