We often think that, from where we came? Who is the creator of the universe?  And how it is created? Actually the answer of all these questions is one, i.e. The Big Bang. The Big Bang theory is a cosmological model for the early development of the universe. According to the theory, the Big Bang occurred approximately 13.798 billion years ago, which is thus considered the age of the universe.

                           According to this theory, initially our universe was concentrated into a small ball infinite density or simple it is called ‘Singularity’. And suddenly it burst off and started expanding to create our universe. Astronomers still don’t know that from where this ball came and how did it created as everything before it was destroyed in the explosion. As the universe became cool, the different forces in physics and the subatomic particles began to form. Though simple atomic nuclei formed within the first three minutes after the Big Bang, thousands of years passed before the first electrically neutral atoms formed. The majority of atoms that were produced by the Big Bang are hydrogen, along with helium and traces of lithium.

concept of singularity before big bang happened
Concept of singularity before Big Bang
                            Gradually, stars were form by collapsing cloud of material made mostly of hydrogen, with helium and tiny amounts of heavier elements. Primordial stars were different than the stars we are seeing in the present universe. They were hypergiant and supergiant stars. They generally die with a supernova and leave behind many heavy elements like carbon which are building block of the life on Earth. 

VY canis majoris, a hypergiant star
VY Canis Majoris, a hypergiant star

                     All elements, for example Hydrogen, helium, Lithium, Carbon, Oxygen, Phosphorus, Sulphur, Potassium, Calcium, Ferrous (iron), Natrium (sodium) etc. were actually emit from the core of Big Bang and got spread in the whole universe.

So, indirectly we can call the big bang as our actual mother.
This universe may seem immortal but its not. There are various theories related to the end of universe. Check out here........

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