Universe and Big Bang Theory

Physics

definition

Origin of the Universe

On the basis of the model of supernova explosion of stars that led to the formation of new stars, it is proposed that the universe might have begun with a start of explosion. This is known as the Big Bang theory.

definition

Celestial objects

A celestial body is an object in space having mass. They are usually bound by force of gravitation.
Some examples of celestial objects are sun, moon, stars, etc.