As for the origin of the universe, I believe many friends know that modern science believes that the universe originated from the singularity big bang 13.8 billion years ago. After the Big Bang, the universe expanded rapidly while also continuously forming various celestial bodies. With the passage of time, the present colorful universe has emerged.
We all understand that before the universe was born, there was no celestial body or matter. If the universe originated from the big bang of a singularity, then this singularity can be regarded as a collection of infinite energy. It was this infinite energy thing that had a big bang under the action of the mysterious force, the energy in it was quickly released, and then the current universe was reborn.
Therefore, any matter and celestial bodies in our universe were formed continuously after the Big Bang, and the original universe would not have any celestial bodies. At that time, only hydrogen, helium and other objects were first transformed by energy. Few elements. I believe that many friends know Einstein’s mass-energy equation. According to the theory of mass-energy equation, energy and matter can be transformed into each other.
As long as the energy is strong enough, under the coordination of other conditions, it can transform any substance. Therefore, the matter of the early universe was transformed from the super energy generated at the instant of the energy explosion, and more than 99% of it was hydrogen and helium. With hydrogen and helium, stars will be born later, because the main components of stars are hydrogen and helium.
It can be seen that, theoretically speaking, it is impossible for celestial bodies older than the age of the universe to exist in the universe. I believe my friends can understand this point. But what if scientists discover a celestial body in the universe that is older than the age of the universe? Someone might say, how is this possible? If there is such a thing, it is estimated that countless scientists will be surprised and doubt many things in this universe.
However, the universe is so big that there are no surprises, and the more impossible things will happen, they will always appear and hit us in the face. And this celestial body older than the universe has really been discovered by scientists. It is a star and its name is HD 140283. The star is about 190 light-years away from the earth, which is not too far away from us.
This star was discovered by scientists as early as a century ago. When scientists discovered it and calculated its age through some observational data, scientists at the time were surprised. It turned out that its age reached about 14 billion years. It is not surprising that a star can live for such a long time. In theory, stars with small masses can reach this lifespan.
Scientists are surprised that its age is older than the age of the universe. It is important to know that modern science believes that the Big Bang occurred between 13.7 billion and 13.8 billion years. If the age of this star is about 14 billion years ago, it means that it existed before our universe even started. Isn’t this a fantasy? But the fact is right in front of us, so we have to believe it.
At first, scientists also wondered if our calculations were wrong? However, for 100 years later, scientists have been observing and studying this star. After calculating again and again through more observational data, the final conclusion is still about 14 billion years. Even if there is an error, It is also around 800 million years ago.
Someone might say that if the scientist’s calculation error is 800 million years, then the age of the star is 13.2 billion years, isn’t it smaller than the age of the universe? In this case, it is normal for the first stars to be born in the Big Bang? At first glance, it seems quite reasonable, but if we carefully analyze the birth time of the first batch of stars in the universe, you may not think so.
After the Big Bang, hydrogen and helium were formed first, followed by the rapid expansion of the universe. This period is the “dark era” of the universe, without any light. It wasn’t until the first batch of stars and galaxies came out that the so-called “dark era” of the universe was brought to an end. These stars not only illuminate the night sky with their light, but also clear out the fog that was originally filled with hydrogen atoms in the universe.
From the earliest hydrogen and helium to the first stars formed later, it takes a long process and does not form soon. According to observations and studies of scientists, the first stars in the universe were born about 13 billion years ago, which is about 800 million years after the Big Bang, when the first stars were born.
However, even if the error of HD 140283 discovered by scientists has reached 800 million years, its age is 13.2 billion years. Stars are unlikely to be born in the universe at this time, so how did this ancient star come from? In this regard, scientists are also very confused. You know, scientists have also observed and discovered some ancient stars in the past half a century. These stars may also be the first batch of stars born in the universe. They are basically about 13 billion years old.
According to normal calculations, the star HD 140283 has an age of 14 billion years. Even if the error is adjusted to 800 million years, its age is 13.2 billion years. This situation is obvious. If our universe did originate 13.8 billion years ago, then this star may not be a celestial body in our universe.
Seeing this, many people think of how non-cosmological, I believe many of my friends know that scientists have put forward the multiverse theory. This theory believes that the universe is not unique, but there are many, there is a vast space under our universe, and a large number of other universes exist in this space.
If the multiverse theory is correct, then HD 140283 may be a celestial body from another universe. It entered this universe unintentionally after the Big Bang happened in our universe, and it has existed until now. In addition, there is another possibility, which is also related to the origin of the universe.
Scientists have another explanation for the origin of the universe, which is the cycle of the universe. Some people think that the universe also has a beginning and an end. When the universe expands to a certain extent, it will continue to collapse, and finally restart the universe and give birth to a new universe. . If this is the case, then our universe may be a continuation of the previous universe. The star HD 140283 may be a celestial body in the last universe. As long as it is by chance, it has not been destroyed, and it will continue to be preserved with the birth of the new universe.
Of course, these are just our guesses. What is going on with this HD 140283 star? It also requires continuous exploration and research by scientists. If it is really the celestial body that gave birth to our universe, then its age is 14 billion years. Does that mean that human beings are not correct about the origin time of the universe? It is possible that the origin of our universe is as far away as 13.8 billion years ago.