Since the birth of the universe 13.8 billion years ago, why is the diameter of the observable univer

100 million years and light years are not a unit of measurement, which is the first mistake to avoid, 100 million years is a unit of time, but light years is a unit of distance, so there is a difference between the two.

You know, the diameter of the universe is much larger than we can imagine. And when it comes to the diameter of the universe that humans can observe, it is far more than 93 billion light years.

A: Since the birth of the universe 13.8 billion years ago, the observable diameter of the universe is 93 billion light-years, which is due to the continuous expansion of the universe at the speed of light, so the maximum observed diameter is 27.6 billion light-years.

We can observe that the diameter of the universe is 93 billion light-years. It is caused by the expansion of the universe due to the interaction between galaxies. If this continues, the stars will only get farther and farther apart.

The universe has been around for 13.8 billion years, and the diameter of the observable universe is 93 billion light-years, which may be related to the diameter of the universe's expansion, so the radius of the directly observed universe is beyond 138 years.

The age of the universe is 13.8 billion years, but the observable diameter of the universe is 92 billion light-years because the previous universe was infinitely dense.

1.In space exploration, our average car is too slow. If we launch an artificial satellite, we need to overcome the gravity of the Earth, and then we need to reach the first cosmic speed, that is, kilometers per second.

If we want to fly out of the Earth, completely free from the gravity of the Earth, we need to achieve a second cosmic velocity, that is, more than kilometers per second. If you want to get rid of the gravitational force of the solar system, you need to achieve the third cosmic velocity, that is, kilometers per second.

2.In the early days of the universe, there was no light, or no free photons to propagate, until 380,000 years later, when the first free photons were born with the advent of atoms (these photons formed what we now call microwave background radiation). However, we should not forget that the universe is always expanding, and the light source matter that emits these photons is always expanding with the expansion of cosmic space.

3.The theory about the origin of the universe is a big ** theory, and Hubble identified the expansion of the universe before it became the mainstream theory. In Einstein's theory of relativity, the speed of light in a vacuum is the limit of the speed of motion of an object in the universe.

Any static object does not exceed the speed of light, but there is no limit to space itself, so the rate of expansion of space does not violate the theory of relativity. Our universe has been expanding at the speed of light, and the observable diameter of the universe is related to the age of the universe and the expansion of space.

4.You know, the speed engine in science fiction is achieved by compressing and colliding time and space. Simply put, it is a cosmic scope that can be observed with the observer in mind.

Of course, by measuring the observable extent of the universe, this data is calculated. Scientists can calculate the observable radius of the universe by measuring the red movement of the microwave radiation particles in the universe. The above is the answer to the question of why the diameter of the observable universe is 92 billion light years when the age of the universe is 13.8 billion years.

This is because the universe is expanding, so the observable diameter of the universe is getting larger and larger over time, mainly because of the expansion of the universe, but in fact the age of the universe is indeed 13.8 billion years.

Because if the universe has been in a steady state since its birth, then the age of the universe is 13.8 billion years, and if the universe has been expanding, the space between light and the earth has been expanding, but the speed of light is constant, so the observable radius must be greater than this number.

Because the current technology is limited, and the expansion rate of the universe itself is relatively fast, greater than the propagation speed of light, there may be some deviations in the measurement.

The universe is vast and infinite, and some of the observations of the universe have not yet reached a comprehensive level according to our current scientific and technological leakage techniques. So we should continue to understand and study in depth.

This is because of technology, our level of technology is not particularly high, and we can only observe so far away.

Because there is no direct relationship between the age of the universe and the diameter of the universe, the diameter of the universe refers to the width of the universe.

Previously, we have explained how scientists calculate the age of the universe, everything we perceive may be **13.7 billion years ago, the singularity is large**, and later through the expansion of the universe to have its current appearance, and we know that the current observable universe is about 93 billion light years, that is, human beings can observe light from 93 billion years ago through advanced astronomical instruments. Speaking of which, everyone can't help but wonder, can the universe expand faster than the speed of light? If the speed of light cannot be exceeded, then the farthest galaxies from us should not exceed the age of the universe, and those galaxies that exceed 13.7 billion light-years away, do they break the cosmic law that the speed of light cannot be surpassed?

In fact, the great physicist Albert Einstein has long told mankind that even if it is as large as the expansion of the universe, it has long been summarized in the theory of relativity, and the expansion of the universe has not exceeded the speed of light. In the special theory of relativity, it is stated that in space-time, the relative speed of motion of any two observers on the same event cannot exceed the speed of light. That is, the limit of the speed of light only applies to two objects at the same time and at the same point. At the same time, the famous Lorentz transform theory was proposed to summarize the concept of the speed of light.

To put it simply, if two ships move away from you in two opposite directions, then in your opinion, they will move away much faster than their actual speed, on the contrary, in the eyes of the people on the spaceship, the speed at which you will move away will be less than the speed at which the ship is far away, and the relativistic velocity superposition method of Lorentz change can actually calculate the actual speed of the two spaceships moving away.

Since the speed is limited to two things in the same time and space, and under the theory of the universe, we know that the universe is expanding, and the changing time and space must affect the determination of speed.

Similarly, between galaxies, when light shuttles through the universe, due to the expansion of space, its actual speed is much faster than the theoretical speed of light.

This is the mystery of the great universe, as human beings continue to study the universe, they are also constantly refreshed by its mysterious existence, and in fact, we are still limited to 13.7 billion years, and even in the past, Einstein predicted all this.

The lifetime of the universe is 100 million light-years, but the direct longitude of the universe is 92 billion light-years. That's not a contradiction. 丨 Billions of light-years is the generation of the universe, which refers to the duration.

The 92 billion light-year spacing indicates that the universe is particularly large, and the light emitted by the long stars, more than 300,000 kilometers per second, takes 92 billion light-years to reach the earth. Human cognition of the universe is a three-dimensional space, but in fact it is not necessarily, because human daily life is in a three-dimensional space (this three-dimensional space is actually the definition of human beings themselves).

Moreover, the universe that human beings see is the universe of light and shadow, so when human beings choose everything they see in the three-dimensional space that human beings already know about the world, it is unbelievable that some cosmic conditions, such as: dark energy, antimatter, super black holes, such as: the age of the universe and the size of the universe (because the size of the universe is accurately measured by 10,000 light years, it is not necessarily real), whether the main theme of this definition of the cosmic conditions by human beings is real, and it is also up to human beings to expand their own vision. It's like thousands of years ago.

Human beings do not yet understand the weather phenomena on the earth, so they give it to God's faith, and everyone's understanding of the universe is constantly evolving. According to some observations, in the early days of the universe, in a very short period of time, through a period of crazy inflation, that is, the volume of the universe expanded to a very large volume in an instant. In macroeconomic terms, this rate is similar to an area the size of an orange expanding to the size of the solar system in the blink of an eye.

Therefore, the expansion rate of this expansion is much higher than the speed of light, and it is shown that the expansion rate of indoor space can exceed the speed of light, which is not contradictory to the general theory of relativity. After this crazy surge, the rate of expansion of the universe gradually slowed down, but the expansion rate in the early stage also exceeded the speed of light. In this way, in the course of 30 dry years, the indoor space has become particularly largeBut until then, there had been no light in the universe.

There is no contradiction that the expansion of the diameter of the universe is related to its own rapid expansion, and its own expansion is the result of the research and discovery of Kuanzhou scientists, and the universe is still expanding at a speed faster than light.

There is no contradiction at all, because the year is the length of time, and 92 billion light years is the length of the distance, and the weights and measures are different between the right and the wide, how can there be a contradiction

There is no contradiction, because the diameter of the universe does not have much to do with the life of the universe, and the diameter of the universe does not determine the lifetime of the universe.

This is not contradictory, because the universe has been in a closed circle of expansion since its inception, and the expansion of the universe will cause the light to travel how far before it can reach the observer.