Who can solve the mysteries of the universe? How is the universe defined?

It is entirely possible that Sumeru hides mustard seeds, and mustard seeds are Na Sumeru, and many people think so from ancient times to the present. The more people think, the more they feel their own insignificance.

The universe of the past is the boundary of people's thinking.

The present universe is the frontier that people are exploring.

The universe of the future may be a frontier for people to transcend.

Watch more cartoons, think about the explosion of the small universe, and don't want this thing!

Even Einstein couldn't think of a question about what to say, or leave it to the future to debunk the mystery of the universe.

I've been thinking about this since I was a kid. Sometimes the more I think about it, the more scared I get. If there is an edge.

I'll ask what's out there? What is outside is what is outside [our human cognitive mind. Everything has a side with an idea] so ...

I can't figure it out. The edge of the edge is **"?? What's out there ...

I feel it now. The universe is supposed to be a cube, just like the Rubik's Cube. Spaces can be swapped.

The farthest distance is the starting point. The nearest distance is also the starting point, starting from Earth and returning to Earth as the farthest. On the other hand, it is also recent.

Because space can be twisted. To use an analogy, if the Earth represents a space. The Moon is a space.

Mars is a space. Earth, Moon, and Mars can swap space. It's like the Rubik's Cube we play.

Then the concept of the universe is not so incomprehensible. My conclusion, and my own cognitive answer, is that --- universe is an arbitrary twist that expands and contracts. Spaces can be repositioned.

The energy is infinite and there is space that can overlap. Some people may say that they see ghosts. Maybe it's under specific conditions.

I saw a life form in another space in the same location.

The universe is just a balloon. Keep growing. You may ask what is outside the universe ...

I feel like it should be 0. It can only be represented by 0. Nothing exists outside the universe.

It's like a person dies. Anyone else? Are there still people?

If you have to ask what is outside the universe. It can only be explained with 0. You close your eyes and imagine it.

All things are empty. Why does air exist? Because we need to.

Why does the universe exist? Because with the universe, there is human beings, and there is everything. The outside of the universe is the showdown 0.

It's like a person dies. At the end of life is death. It's like the outside of the universe [language is not expressed].

There is no physical space. I think it's normal.

Conclusion The universe is boundless, but there are edges that can be measured and understood by our cognition. This side is not the other. It's like a Rubik's Cube.

There is no specific edge. But he always has his own form. Even if the universe is expanding.

The most important thing ... The outside of the universe is a duel 0. There is no such thing as space.

Actually, I feel my cognition. It should be correct.

It's mine. If you want to discuss, add me.

1. The definition of the universe is the space and matter beyond the Earth's atmosphere. In the universe, the Earth is the only planet known to mankind that has life.

2. The Creation of the Universe

In the beginning, matter could only exist in the form of elementary particles such as neutrons, protons, electrons, photons, and neutrinos. The continuous expansion of the universe after that caused the temperature and density to drop very quickly. As the temperature decreases and cools, atoms, nuclei, and molecules are gradually formed, and they are compounded into the usual gas.

The gas gradually condensed into nebulae, which further formed a variety of stars and galaxies, and eventually formed the universe as we see it today.

3. Constant expansion:

Dark energy accounts for 74% of all matter in the universe, and it is the driving force behind the accelerated expansion of the universe. The expansion process of the universe is in the balance of two opposing forces, just like yin and yang. One of these forces is gravity, which slows down the expansion, and another powerful counterforce is dark energy, which accelerates the expansion of the universe.

And now, it seems, dark energy wins. The visible matter in the universe is far from enough to unite the universe, and if it were not for the existence of a mysterious and invisible matter, galaxies would have fallen apart long ago. Scientists call this unseen, mysterious substance "dark matter."

4. Accelerated expansion:

The researchers have calculated that the current cosmic expansion rate, the so-called Hubble constant, is about kilometers (seconds, millions of parsecs). Each million-second difference is equivalent to 3.26 million light-years, so for every million parsecs that a galaxy is farther away from Earth, its speed away from Earth increases by kilometers per second. This means that in 9.8 billion years, the distance between cosmic objects will double.

5. The end of the universe:

The laws of thermodynamics do not allow the universe to gain immortality, and when new stars cannot continue to form, the universe reaches the equilibrium point of heat death, and the state of the universe is like the bowl of soup at the beginning of its birth. Heat death is the thermodynamic end, and the temperature of any part of the universe is just above absolute zero, meaning that nothing will survive. A small number of scientists believe that if the universe ends up in a big collapse, all matter will eventually become atomic, and then after an accidental quantum fluctuation, a new round of big ** will be formed, and the next universe will be born.

The universe is the unity of all time, space and its contents, including planets, stars, galaxies, intergalactic space, subatomic particles and all other matter and energy.

Some of the cosmic objects observed by humans are roughly made up of ordinary matter (the matter that makes up stars, planets, gases, and dust) or "baryons", of dark matter and dark energy. In the universe, the Earth is the only planet known to mankind that has life.

Chinese nameUniverse.

Foreign nameuniverse

Observable diameter93 billion light years [1].

Applied DisciplinesGeology, Astronomy, Quantum Mechanics.

Estimate the full diameter160gly

Age100 million years [2].

BirthSingularity big**.

DisciplinesNatural science.

EndingHeat death (mainstream view in academia).

ShapeSphere.

compositionDark energy, dark matter, ordinary matter.

First of all, we need to understand what the concept of this light year is, it is not a unit of time, but a unit of length. 1 light year is the distance that light travels in 1 year, and according to the speed at which light travels about 300,000 kilometers per second, it can be calculated that 1 light year is about 9,460.7 billion kilometers. So how far away is 93 billion light years, you can imagine.

The universe is physically defined as all space and time (collectively referred to as space-time) and their connotations, including all forms of energy, such as electromagnetic radiation, ordinary matter, dark matter, dark energy, etc., of which ordinary matter includes planets, satellites, stars, galaxies, galaxy clusters, and intergalactic matter. The universe also includes physical laws that affect matter and energy, such as conservation laws, classical mechanics, relativity, etc.

While the size of the entire universe is unknown, the size of the observable universe can be measured, with an estimated diameter of 93 billion light-years. In various multiverse theories, a universe is one of the components of a multiverse on a larger scale, and each universe itself includes all of its space and time and its matter.

It's ---Understanding How the Universe Works", it's a documentary, and it's very comprehensive! It also involves the cosmic web, dark matter, dark energy and human exploration of the universe. It's really good, it's good, it's good!

In addition, the mystery of the universe is the title of the book, which is relatively simple, if you want to understand it deeply, see "The Great Design" (the title of the book).

A brief history of Hawking's time, Xiao Ai's theory of relativity, can be.

The mysteries of the universe, a brief history of the universe, and the mysteries of the universe.

1. Universe refers to matter and space-time.

2. The mainstream view in modern cosmology is that the origin of the universe originated from a large state, which evolved from a state of extremely dense and extremely high temperature in the past, and reached a state through continuous expansion, which is called the grand theory of the universe or the theory of singularity.

3. We don't know what caused this big **. The light emitted by the big ** is still spreading outward. The resulting gases and clouds, dancing, spinning, and aggregating into embryonic galaxies.

4. The universe is a general term for the vast space and the various celestial bodies and diffuse matter that exist in it. The origin of the universe is an extremely complex issue. Modern astronomical observations prove that it is in constant motion and development.

For thousands of years, scientists have been searching for when and how the universe came to be. Many scientists believe that the universe was formed by a large ** that occurred about 14 billion years ago.

1. At present, we are entering an uncharted territory. For thousands of years, humans have been discussing life, especially intelligent life in the universe. While there has been no evidence yet, it is likely that this era is nearing its end.

2. The "exoplanet" revolution of the past 20 years has shown us that the universe is full of extraterrestrial worlds. What's even more exciting is that we now have the means that the atmospheres of these worlds can provide circumstantial evidence – "biosignatures" that can indicate the existence of extraterrestrial life.

3. One possible answer to Fermi's paradox is that civilization doesn't last long. Professor Leob stated that even after the end of civilization, some technical features remained. When we study planets, we may find some remnants of civilizations that no longer exist.

4. The stellar energy panels that cover the planet's surface are one such possible example, and they can exist on the planet's surface for a long time after the civilization that built them is gone.

5. In addition, there are some technical characteristics that may not be something we can find now. Once a civilization evolves into an interplanetary civilization, there will be many flying machines in space, not on planets. However, due to their small size, it is difficult to observe these technical characteristics directly at present.