That moment when the Big Bang, which we call the beginning of everything, happened; that is, if we could reach the moment when the universe was formed, what would we see? Does the universe really have a front, a boundary where we can stop and look? If we could talk about a border, what would happen outside the border?

These are questions that bother people a bit when they think about it. While some have answers, unfortunately some don’t. However scientists to explain everything research continues. We wanted to take a look at the answers to these questions together.

Does the universe have limits, a beginning and an end?

The idea that the universe we live in consists of infinite time and space. until the middle of the 20th century was deemed correct. Then we understood gravity better with Einstein’s general theory of relativity. Later, Edwin Hubble discovered that galaxies were moving away from each other.

After these discoveries, with the discovery of the cosmic microwave background radiation in the 1960s, the youngest phases of the universe were discovered with observational evidence. After these developments, the big bang has become an accepted theory in the scientific world. Like the big bang The universe is formed when a very dense and small point suddenly expands and turns into a decreasing density. was telling. We can call that moment the beginning of the universe.

of the universe the question of whether there is an end, a limit? This is one of those questions for which there is no definitive answer yet. The common belief is that the universe is flat, thanks to many experiments and data forming a coherent whole. However, an article published in recent years on the subject argues that the universe is not flat, but closed. is like a sphere suggested. No consensus has yet been reached among scientists who support either idea.

Whether the universe has an end or not is directly dependent on its shape. If the universe is flat light can forever follow its straight path. But if the universe is spherical, sooner or later the light that travels has to return to where it started. Disagreements about the shape of the universe, the question of whether there is an end It makes us unable to answer.

Speaking of the Big Bang…

While we all hear about the big bang very often, it can be a little difficult to understand exactly what it is. But in short, a ‘moment’ when everything started and the concept of time and space emerged We can define as.

According to the generally accepted opinion of scientists, at the time of the Big Bang, the universe was a tiny speck. With the explosion, it began to expand in all directions at great speed. The big bang is exactly one point where fires and sparks originate. instead of an explosiona phenomenon that occurs everywhere at once in all directions. extension. Since all that exists is the ‘universe’, this one point actually represents every place and every moment.

Before the explosion, according to many scientists, there was nothing. Because according to the definitions The universe is all that already exists, all time and space. represents. Therefore, searching ‘for’ may not be a coherent and logical question.

So what would we see if we could teleport and watch the moment the universe began?

Of course, this question using our imagination It can be answered by teleporting ourselves to a place where we can look at the moment before the universe was formed. Because if we were looking for a very realistic answer, we would of course not be able to see anything at a time when there was no time and space and the light had not yet started its journey.

But in this imaginary scenario, the answer to the question is quite obvious; a small and dense place. That is, we know that the universe is constantly expanding. So what if we rewind this process and go back to where it all started?

At the side of the road the universe would get smaller and smaller back in time, everything in the universe would get closer and closer together, and eventually it would become a tiny speck. Trying to understand that the universe, the size of which we can’t imagine, was once a tiny speck, we know. But when you think about it that way, it makes sense…

Sources: 1, 2, 3, 4