How big is a complete universe?

If you have a complete universe, it is very large, and we can't measure it, and we can't measure it clearly, anyway, the universe is infinitely large.

It's very large, and it's also the size of human variation, and the latitude accuracy is very large, and then it's endless without borders.

The universe is very large, and at the moment human beings have not explored the edge of the universe, and the universe is a very, very large sphere.

The universe doesn't know how big it is now, and compared to the universe, we humans may be more fragile than ants, live in the moment, and live well.

The size of the entire universe may be infinite.

The actual size of the universe is infinite, but the human observable range is 93 billion light-years. The universe is divided into the Milky Way, the Solar System and countless galaxies, the Milky Way has hundreds of billions of stars and a large number of nebulae, as well as interstellar gas and dust, which is the galaxy where the solar system is located.

The Milky Way is in the shape of a silver-gray ring, and the solar system includes planets, moons, and small celestial bodies, and the Sun is the only star in the solar system, that is, the celestial body that produces energy by its own heating reaction.

The universe is physically defined as all space and time and their connotations, including all energy in various forms, such as electromagnetic radiation, ordinary matter, dark matter, dark energy, etc.

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.

According to scientists' observational calculations, the diameter of the observable universe is about 93 billion light-years, which is a large number, but no matter how large, it also shows that the universe is finite.

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So what's outside the observable universe? We don't know, and we probably never know, because the universe has been expanding rapidly, faster than the speed of light, and the light from outside the observable universe will never reach the Earth, and what happens there is meaningless to humans.

But it is foreseeable that there will still be a universe outside the observable universe, so how big is the real universe?

The size of the universe is one of the ultimate mysteries of the universe, and according to conventional thinking, this question can easily lead to a dead end, and finally has to rise to a philosophical question.

Conventional thinking tells us that there is an inside and outside for everything, and the universe should be the same. But if there is an "outside" in the universe, then what is the "outside" of the "outside"? There is no end to this questioning.

Everyone knows that from week to week is measured in light years. The Milky Way is just an infinite number of universes. One of the series.

In this way, the universe is infinite, and there is no way to describe it in light-year units. Billions of light-years are far more than people realize.

I just finished watching a popular science universe yesterday, and it's really super big. None of them have been explored yet. Watch a Hubble telescope photograph of one**. I thought the stars in it were small stars, but it turned out that every star in it was a galaxy.

It's really unimaginable that the universe is big.

Infinite but infinitely small, bounded but infinite.

The universe is very large, and the earth in the river universe is not as large as the dust in comparison. As for how big the real universe is, there is no way to measure it, because the universe is growing all the time, and people simply can't keep up with the pace of the universe, let alone measure it.

The universe is very large, the earth is nothing in the universe at all, because it is very difficult to explore the universe, human beings cannot explore the entire universe, and what they explore is only the things around the earth. As for the other things in the universe, no one knows, so how big the universe is, this is still a mystery, and there is no accurate data.

For the universe we can see now, this universe is 27.6 billion light-years in diameter. But the actual universe is definitely more than that, so it's just an inaccurate data. The real universe is like a child, constantly growing and expanding, and this other world is really very scary.

Because the universe is expanding more and more, astronauts can't keep up with the pace of exploring the universe at all. The universe is expanding faster than the speed of light, so it is very difficult for people to explore the universe. It can be said that this thing cannot be achieved at all, according to the current science and technology of mankind, even flying out of the galaxy is a problem, let alone exploring the universe, maybe there may really be talents in the future, measuring how big the real universe is, but that may have to wait a long time.

This universe is endless and simply cannot be described in a big way.

The current radius of the universe is about 46.5 billion light-years, with a diameter of 93 billion light-years. However, 93 billion light-years is only the diameter of the universe that we can observe, and since the universe is expanding faster than the speed of light, we cannot know how big the universe really is if we only observe the universe from Earth, which is still an unsolved mystery.

How big is the universe? Star Awareness Project

The word "universe" probably originated from the famous ancient Chinese philosopher Mozi (c. 468-376 BC). He used "universe" to refer to the east, west, south, and north, and the space in all directions, and "Zhou" to refer to the time of the past and the present. Past, present, or future; Is it a recognized, or an unrecognized......In short, everything is everything.

From a philosophical point of view. It is believed that the universe has no beginning and no end, and that it is boundless. However, we are not going to go deep into this esoteric concept, and we will leave it to philosophers to study.

We might as well zoom out a little and talk about the universe that can be understood and observed using the science and technology available to us, which people call "our universe" or "total galaxy".

According to the latest observations, the farthest galaxy that has been observed from us is 13 billion light-years. That is, if a beam of light is emitted from the galaxy at a speed of 300,000 kilometers per second, it will take 13 billion years to reach Earth. This distance of 13 billion light-years is the extent of the universe as we know it today.

To be clear, the extent of the universe as we know it today, or size, is a spherical space centered on the Earth and radiated by a distance of 13 billion light-years. Of course, the Earth is not really the center of the universe, and the universe is not necessarily a sphere, but we can only understand this extent due to our current observation capabilities.

In this spherical space with a radius of 13 billion light-years, about 125 billion galaxies have been discovered and observed, and each galaxy has hundreds to trillions of stars like the Sun. So with a simple math problem, it's not hard to see how many stars there are in the universe that we've observed. In such a vast universe, the earth is really like a drop in the ocean, so small that it is insignificant.

Infinite! For us people tired!