Where is the center of the universe?

If we look to the sky at night we will see a lot of stars around us. Then a feeling may grow to us that we are in the center of the universe. If it does not, then where is the center of this universe?

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Actually there is no center of the universe. More or less 1,300 million years ago after the Big Bang, our universe has been expanding. But the Big Bang did not happen at any particular point. During the Big Bang, the universe was enclosed in a small substance with unlimited heat and density. Then onward all sides of the universe is expanding evenly. Even today the universe is expanding like that. There is no point of origin, no center.
To realize it, we may imagine an ant that lives on a two-dimensional surface of a round balloon. From each and every angle of the balloon the ant will see the same. There is no center on the balloon sphere and there is no edge. If we blow the balloon, the ant will see it is expanding two-dimensional. If we put some dots on balloon and blow it. Then we will see the dots are moving away from one another. Just like the galaxies of the universe are moving away from each other.

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Barbara Ryder, Astrophysicist at the Ohio State University of the United States, said that ‘the ant will not have any top-down experience in the front or behind, either on the right or left side. '

Our universe is the three-dimensional version of the two-dimensional universe of the ant's balloon. However, the size of the surface of the balloon has a limit but our scientists could not find out the size of our universe yet. It may be limited as to what extent the light produced during the Big Bang. But from this observation of the Astronomer we can know only a small part of the universe. The reality is that our universe may not have any limits, with infinite volume.

If so, then our universe may be flat and wide like a rubber sheet that is expanding forever. Or like a three-dimensional bread with raisins that is just continuously expanding unlimited. And the raisins in it are moving away from each other. Just like the galaxies of the universe that are moving away from each other. Barbara Ryder said that if there is no limit of our universe, then there is no center of it.

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Our universe could be flat like a sheet, which has been expanding gradually and very fast. Or maybe it is like a curved balloon, and in such a case, maybe its expansion might stop. Even though, it is unlimited and has no center.

However, the theoretical concepts that have been developed so far and the observation that we have observed, that our universe seems flat. But scientists are still not sure whether our universe is plane or its curvature is so spacious that it seems only flat. Just like the round earth seems flat to us from the surface.

There is no center in the universe and there are no edges or boundaries, this concept is also consistent with the cosmic theory of space in the universe. The cosmic theory is that no space in the universe is separated from one another. Observations of how galaxies are spread and cosmic microwave backgrounds show that whenever we zoom out till the end, it will look the same everywhere.
Throughout history, we have mistakenly assumed that we may be close to the center or at the center of the universe. The center may be the earth, the sun or the Milky Way galaxy.
But we think as important as ourselves; the universe has shown upside down!

Source: Live Science

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