Where is the center of the universe

The question where is the center of the Universe is asked by scientists quite often, but

unfortunately no one can answer it at the moment. The center of the universe is one of the most confusing aspects of the Big Bang theory (the theory that the universe was formed by an explosion). The problem is that it doesn't exist. If we imagine a typical explosion, then we can clearly imagine the source of the explosion somewhere in the center. For example, looking at a photo of a fireworks display and estimating the direction of the lights, we can easily imagine where the explosion began. In addition, in a typical explosion, the temperature at the epicenter should be higher and decrease with increasing distance. However, the Big Bang was not your typical explosion. When scientists direct their detectors to different sides of the universe, they record that it is generally homogeneous. There are no large regions where temperatures are higher than the rest of the universe. If so, then the center does not exist. How to present it?

As we know, the universe is expanding. The most common analogy for explaining the concept of a universe without a center is an expanding balloon. If we draw several points on a balloon and begin to inflate, we will see that the points are evenly removed from each other. In this example, the Universe is the surface of the balloon. It is the surface, not the ball as a whole, because if you imagine the Universe as a ball as a whole, then there is a temptation to place the center of the expanding Universe in the geometric center of the ball. So, focusing only on the surface, you can see that each point is evenly removed from its neighbors, and none of them stands out as a center. Now imagine that the drawn points are galaxies and you are in the center of one of them. Looking around, you will notice that the rest of the galaxies are evenly moving away from you in different directions, as if you are the center of the universe. And wherever you are, you will always be at the center of the universe.

This term was coined by the famous physicist Fred Hoyle, who thus expressed his sarcastic attitude towards the idea of ​​the universe. Cosmologists did not catch the sarcasm and willingly adopted the term. The English phrase Big Bang, of course, is not a strict physical term, but it does not look like such a term! The Russian translation - Big Bang - looks more solid and therefore seems more physical, which is misleading to many. Since there was an explosion, it means that there was both the place of the explosion and that which exploded ... In fact, the expansion of the Universe should not have a center. The most popular analogy here is an inflatable balloon. Its surface is expanding, but this expansion has no center.