How empty is the universe? What is in the void space of the universe

It's so empty that two galaxies don't collide with each other as they pass through each other. Drop a 1 mm grain of sand in the glass and watch him sink slowly in the water. And then imagine putting this grain of sand in the Pacific Ocean, and then this sand could be our solar system.

The infinitely long curve is the abstraction of the universe, one end is connected to the infinite past, the other end is connected to the infinite future, there are only irregular and lifeless random ups and downs in the middle, the peaks of the waves are like grains of sand of different sizes, and the whole curve is like a one-dimensional desert formed by all the sand grains in rows, desolate and lonely, and it grows even more unbearable. You can go infinitely far forward and backward along it, but you can never find a home. ‍‍

When we were in geography class, the teacher told us about the universe, saying how vast the universe is, which is unimaginably big for us human beings, big enough to accommodate anything, and that any person and thing is insignificant in front of the universe, like a drop in the ocean, worthless. At this time, I couldn't figure out how empty the universe is, is there a specific measurement that can solve this mystery, and asked the teacher, who said that she didn't know either, the question was very profound, and just gave me a simple inference. Not far from the Milky Way, there are galaxies, large and small.

If the Milky Way is understood as a flattened Earth, then if you look to the side, you will find another flat ball not far away, and two more flat Earths can be placed in between. There are also some flat balls on the side, all about the same distance. But these flat spheres on the sides are much smaller than the flat Earth, one-fifth the diameter of the largest, and only one-200th of the smallest.

Therefore, these flat spheres are called "dwarf galaxies". The Milky Way pulls on these dwarf galaxies to form a cluster called the "galactic subgroup", where the Milky Way is significantly larger.

After reading a lot of astronomical literature, I have always had a lot of questions in my heart, and I am also full of interest in the universe and the world outside the universe, I really want to know how empty the universe can be, and I have asked many astronomy students but have not found any reliable answers, but after I consulted a very strong senior sister in the field of astronomy, I understood a lot in my heart. When you look up at the starry sky at night, all the stars you can see with the naked eye, except for the Moon, Jupiter, Mars, Venus, and Saturn, all the other stars are light-years away from you. The nearest one is also 4 light years.

Maybe some of the stars have already **, but the light has not yet reached the earth. The Celestial King, Aquaman, Hades, and other asteroids are barely visible to the naked eye. ‍‍

The primordial fireball** was then stretched to a radius of more than 10 billion light-years, which shows how empty the universe is. We look at our own moons and our own stars as a glass sphere, and when we look at other stars, no matter how big they are, they are small dots. Without breaking the limit of the speed of light, even after 100 million years, human beings have destroyed the earth, the solar system, and the Milky Way, and the impact on the universe is about zero.

Searching for Earth in the solar system is like looking for a fly throughout Europe. Searching for the Sun in the Milky Way is like finding a bacterium in the entire Earth. "Now" does not exist, because you can never see the Sun "now", only the Sun eight minutes ago - even if the person standing across from you is not "now" but how many milliseconds or microseconds ago he was.

The farther away an object is, the longer it takes for its light to reach your eyes, the longer it is a thing that is far away from you. At a certain point, the Sun was eight minutes ago, Pluto was eighty minutes ago, and the Big Dipper was eight hundred minutes ago! In this sense, space is time – do you want to see history?

Just look up at the stars and look into the distance, it's all history.

In this way, if you were to be placed in the universe at random, the probability that you would be placed on a star would be about 1 in 10 to the 33rd power. The vastness and emptiness of the universe lies in the fact that if we humans destroy the earth, although we know that there will be billions of planets as suitable as the earth among the billions of stars, we may not be able to reach any of them even if we exhaust the technological level of human beings.

The density of celestial bodies in the universe is equivalent to only one person on Earth. You have been moving at the speed of light since you were born, and you can't reach the end of the universe until you have a beard that drags the ground, this is the universe. The galaxy we have discovered so far is about 13 billion light-years away from Earth, and it is called "UDFY-38135539".

13 billion light years, what is the concept? For example, if you can live to be 100 years old, that's only 100 light years. That's a nowhere near 13 billion light-years.

So the universe is really big.

Emptiness is related to the degree of mobility and the macro or micro degree of perspective. To some extent, the microcosm is also very empty. In addition to normal matter, there are two parts: dark matter and dark energy.

Dark energy, by calculation, should account for 73 of the structure of the universe, dark matter 23, and this ordinary matter around us is left.

If the sun is as big as a mineral water bottle cap, then there is a bead about centimeters in diameter about four meters and a half away from it, and that is the earth, but the distance between the moon and the earth is about 60 centimeters, and the radius of the entire solar system is about two hundred kilometers, and it is simply terrible to think that the gravitational pull of a bottle cap can control the range of four hundred kilometers. However, placing this 400-kilometer solar system in the Milky Way is equivalent to placing this 400-kilometer radius in the entire solar system.

There are only two atoms per cubic meter on average in the universe, and the atomic density of the emptiest vacuum created by human laboratories is n orders of magnitude higher than that of the universe.

The universe is an infinitely large sphere, how empty it is, and there is time to travel in it, like a balloon that can be infinitely inflated.

It can't be said that it is empty, there are no words to describe it. It can only be said that infinite.

The universe should be boundless.

What is the concept of a light year? And Proxima Centauri, our closest star, is light-years away. At our current speed, at the third cosmic velocity, it would take about 75,800 years to reach it.

The universe is huge. Unpredictable. It is incomprehensible to speculate. Further exploration is needed.

The universe isn't that big, it's smaller than I thought.

The universe is full of consciousness, but we can't perceive it.

The vast universe is much bigger than anyone could have imagined. Wouldn't it be a waste of space if it were just humans?

The universe has no boundary, never end...

The collision of two galaxies is not only a star, but also a lot of planets and moons.

There is no emptiness + emptiness : receiving + receiving light ......Cosmic antimatter controlled by field synthesis and regeneration fills the entire universe.

You can think as wide as you want...Boundless.

The distance between the human heart and the human heart is the relationship between the objects in the universe!

There is less than one atom per cubic meter in intergalactic space.

Can use one number: Can't count! Infinity is so born.

More space is less space.

In the vast universe, who is the master of ups and downs.

Hello dear, what is in the void space of the universe, this is a difficult question. The universe is so big that we can't see anything directly in the observable universe. However, we can infer what might exist by looking at the distribution of matter and energy in the universe.

According to the current model of the universe, the distribution of matter in the universe is uneven. The matter we observe is mainly concentrated in the center of the star system and the interior of globular clusters, while there is a large amount of dark matter and dark energy between galaxies and in cosmic space. These dark matter and gloomy dark energy are the basic components that make up the universe, but their properties are still unknown.

In addition to matter and dark matter and dark energy, there may be other unknown things in the cosmic void space. These things may include, but are not limited to: Subspace:

A theoretical space with a nature similar to that of cosmic void space, but on a much larger scale. Antimatter: A theoretical substance that, contrary to our common matter, can produce gravitational interactions.

Black holes: A very gravitational celestial body with enormous mass and gravity, but we can only infer their existence by observing the distribution of matter and energy around them. In short, there may be various unknown things in the void space of the universe, and the nature and characteristics of these things are still unknown, and more observations and studies are needed to reveal the true face of its royal waxes.

Summary. Gravitational force, electromagnetic force, strong nuclear force, and weak nuclear force. Quantum mechanics describes physical phenomena in the microscopic realm, in which the three natural forces involved are electromagnetic, strong, and weak.

Electromagnetic forces (interactions between electric charges) are responsible for maintaining the interactions between atoms, molecules, and macroscopic objects, including the generation and interaction of electromagnetic radiation (e.g., light, rays, etc.). The strong nuclear force is responsible for maintaining stability inside the nucleus, which causes a strong interaction between protons and neutrons, binding them tightly together to form a stable nucleus. The weak nuclear force is involved in processes such as radioactive decay, and it is responsible for the changes of some elementary particles (such as neutrons, protons, and electrons, etc.), triggering nuclear reactions and particle decay phenomena.

These three forces play an important role in quantum mechanics, influencing each other and determining physical phenomena and interactions in the microscopic realm.

Hello Dear Inquiry In the void space of the universe, there is no substantial material existence. Cosmic void space refers to the area of the universe that is free of any stars, planets, nebulae, stars, or other matter. It is a vacuum area with no matter, no air, no light and no energy.

Take this information in.

The knowledge of the universe is as follows: 1. The universe has been born 13.7 billion years ago. 2. There are only four natural forces.

3. Quantum mechanics integrates three natural forces. 4. The theory of hypergravity, in the 11-dimensional space, the sail balance allows the unification of the four forces. 5. Superstrings, which unify all forces and natural laws.

6. All theories of restraint are completely invalid at the singularity.

What are the four natural forces and what are the roles of the three natural forces in quantum mechanics.

What is hypergravity.

What is Superstring.

Is there gravity or what matter and mass there is in the universe before the big **, or what energy is there?

How energy is generated, how mass is generated.

Gravitational force, electromagnetic force, strong nuclear force, and weak nuclear force. Quantum mechanics describes physical phenomena in the microscopic realm, and the three natural forces involved in it are the electromagnetic force, the strong nuclear force, and the weak nuclear force. Electromagnetic forces (interactions between electric charges) are responsible for maintaining the interactions between atoms, molecules, and macroscopic objects, including the generation and interaction of electromagnetic radiation (e.g., light, rays, etc.).

The strong nuclear force is responsible for maintaining the stability inside the nucleus, which causes a strong interaction between protons and neutrons, and binds them together to form a stable nucleus. The weak nuclear force is involved in processes such as radioactive decay, and it is responsible for the changes of some elementary particles (such as neutrons, protons, and electrons), triggering nuclear reactions and the decay of granules. These three forces play an important role in quantum mechanics, influencing each other and determining physical phenomena and interactions in the microscopic realm.

Was there gas in the universe before the universe was great.

According to Lingmo's current theory of nuclear Wang Zhao cosmology, the cosmic state before the universe is a heat-dense state, called the cosmic singularity. Before the cosmic singularity, we could not be sure of the presence of gases or other forms of matter.

It is more appropriate to use the word vastness to describe the two words, and the word vastness is generally used to describe the universe. The meaning of vastness is to describe the immensity of water. It is now widely used to describe the breadth and depth of knowledge and art. It is generally used to describe the universe.

Vast means vast and spacious, and generally refers to things within the scope of space, such as the vast sky; The meaning of vast means broad, broad, generally refers to a plane, such as the vast sea, and the universe is spatial, and it would be more appropriate to use broad.

Vast generally refers to a large space, including all directions. Vast generally refers to the plane, and the Liao character has a walk, which refers to the range of walking. If you want to describe the universe, it is more accurate to use vastness than vastness, but vastness cannot measure the universe, and the universe is generally described by vastness.

If the universe is marginal, then only relative materiality or objectivity is marginal. For example, when the objective is transformed into a virtual body, it is the transformative edge of the objective, while the realization of the virtual or virtual reality is the edge of the variability of physical motion. Marginality can also be said to be the process of movement change caused by qualitative and quantitative changes in matter, and the virtual can be transformed into reality, and the reality can be transformed into virtual.

If so, what is the margin of the universe? Deposit.

Is it virtual or real? If marginality means nothing, but the universe can come out of nothing, then there is no margin, so there is no margin in the universe. However, the universe has a variable boundary, with critical values such as mass, quantity, variability, fluidity, etc.

Because the universe has no center, the universe has no edge, and the universe has only a center and an edge everywhere, and there is no ultimate cosmic edge.

The edge of the universe is on your head, on the tips of your eyebrows, on your toes, and every hair on your body is the edge of the universe. According to Taoism.

The human body itself is a small universe. Taoism.

The universe in refers to the Milky Way.

If you zoom us in to the size of the Milky Way, we'll see the Milky Way again. The Milky Way is actually an amplified version of man.

Whether Taoism is Buddhism.

It's all on Erlang's legs.

Meditate, the mind is in the air or sealed. If you look down from the top of the cultivator's head, the cultivator's head is the center of the Milky Way, a huge black hole.

Some scientists believe that the universe was formed by the big **? Why**? Can this explanation really hold up to what happened billions or even tens of billions of years ago?

In fact, in addition to that clumsy scientific theory, the main thing is imagination. Then, you have your whims, I have my mystical reverie, and the cosmology is formed. Whether a universe is marginal or not, human beings have been arguing for many years.

You say that the universe has edges, what are the edges like, what are the materials, what are the boundaries? If you think infinity is invisible, let alone its size?

If dark energy.

Sudden decrease, less than dark matter.

Then the universe will shrink, and the force of inducing rotten things will bring everything together. In the end, scientists call this result the Great Contraction. Whether it's a big contraction or a big expansion, it's a kind of extinction for the universe.

Therefore, the universe has no boundaries. Unless the universe does not expand, there will never be boundaries and shapes!