Question

when the universe strat i know it strated from big bang but i don't understand whats big bang with wohel explantion

Answer 1

Hey mate, here is the answer

The big bang is how astronomers explain the way the universe began. 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).

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Answer 2

Answer:

The reason for Big Bang theory(existence of universe) can be explained using 2 forces,one repulsive and the other attractive(gravitational force).If we consider our universe a multiverse(more than one universe exists) then the big bang repeats itself  giving birth to new universe.When the energy of an universe gets exhausted then the gravitational force overcomes the repulsive force as gravitational force is due to matter and repulsive due to energy.Universe starts to shrink and then it converts into a black hole.After some time this black hole shrinks to size of a point and when the space can`t sustain anymore,it blasts and matter starts to get disperse and this is how and why big bang occurs.

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Explanation: