Question

what is the big bang theory
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Answer 1

Answer:

The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.

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Answer 2

Answer: The big bang theory is the leading explanation of how the universe began. At its simplest, it says that the universe we know it started with a small singularity , then inflated for the next 13.8 billion years to the cosmos that we know today .

Explanation: About a billion years after the Big Bang, gravity caused these atoms to gather in huge clouds of gas, forming collections of stars known as galaxies. Gravity is the force that pulls any objects with mass towards one another  the same force, for example, that causes a ball thrown in the air to fall to the earth. During the Big Bang, all of the space, time, matter, and energy in the Universe was created. This giant explosion hurled matter in all directions and caused space itself to expand. As the Universe cooled, the material in it combined to form galaxies, stars, and planets.

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