What s outside the Earth? What is outside the universe? Where is the edge? Is there an end to the wo

Do you think the mathematical view that a straight line is considered to be infinitely long, but the ends of a straight line coincide at infinity? If you dig a little deeper about the universe (space and time, dimensions, etc.), you won't be bothered by the question you asked.

Albert Einstein put forward the idea that the universe is "bounded", that is, the space of the universe is finite, but you cannot find its boundaries. So there is no need to talk about anything outside the universe now, because according to our definition of the universe, all matter, energy, space, and time are all part of the universe.

Here's a very interesting corollary from Hawking's brief history of time.

There can be no infinite universe.

If the universe were infinite, then the light of each star would end on the surface of another perseverance, so that the light emitted by the stars would be as bright as the sun. Even if it is hindered by other non-luminous substances, these substances will be heated until they glow like stars, which in fact does not happen because there is day and night. The only explanation is that there can simply be no universe of infinite size, either in time or space.

Our present universe must have been born in a finite past, and stars must have begun to shine in a finite past. In short, the universe has not reached thermal equilibrium. This is proved by Hubble's discovery, which is the famous universe of the great **.

Albert Einstein described a multidimensional space-time. That is to say, the universe is finite, but there is no boundary, just like the surface of the earth, although it is limited, but there is no boundary, but the surface of the earth is two-dimensional, and the universe is four-dimensional.

In the past, people thought that the earth was the center of the universe; Now people know that beyond the universe is the void, the blank; But people don't know that human beings are like a toddler, growing up, who knows what people's ideas will become in the future, just like people in the past thought that the earth was the center of the universe, maybe ten thousand years later, when people at that time remembered that those people thought that there was nothingness outside the universe, how naïve and ignorant they were. What is beyond the universe? No one knows, and who knows.

Outside the earth is our extensive vacuum of the universe, if the name is called the earth-moon system, then the solar system, the Milky Way, the universe, what is outside the universe no one knows, but according to the consensus of most scientists is that the universe is bounded and infinite, and I personally estimate that the boundary of the universe should be a pile of rubble.

Outside the earth is the universe, outside the universe is the universe, the universe is currently without edge, the world has no end.

Do you think anyone will know about this issue? Who has been to the edge of the universe?

How to understand. Stephen Hawking said, "The universe is finite and unbounded".

These words seem to flicker in the blink of an eye, how do we make sense of them? The universe is not infinite, it has been proven by modern physics that we have understood that the universe we live in actually started from the singularity of the universe, and then the universe had time. Space and time are inseparable; There is no point in knowing about their existence alone.

Then the universe expanded, and so far, we see that the universe is still expanding, with no tendency to stop and contract. Therefore, our universe is not infinite and not homogeneous. In fact, he is expanding and expanding.

He begins not as a matter of meaning, but as a singularity of space and time, where everything we understand in this world is meaningless.

About Infinity. The universe exists in the same way, in a three-dimensional space, the universe is infinite, and when you think of distant cosmic boundaries, it's really just going around in circles in curved space-time, and you can never find the boundaries of the universe. It's as if you're following the surface of the earth, and you can't find the edge of the earth.

However, when we jump out of the reality of three-dimensional space, the dimensions and stand in the 4 higher positions, we can easily find that the universe is finite, just as we look at the earth from space, just as we look at everything at a glance.

It is not difficult to see that if we find the boundary on the surface of the earth, it is equivalent to climbing a tree to find fish, but as soon as we understand this, the ship leaves the surface of the earth, using all the clarifications, say, at that time we left two-dimensional, three-dimensional, so that it will be easier to discover the secrets of the earth. In the same way, when we find another way to say goodbye to the three-dimensional space, to a higher direction, we immediately see the truth of the universe from Him, in this universe. This method may be the wormhole described by Stephen Hawking, or it may be the answer to the natural black holes in the universe, some of which have singularities.

It is conceivable that there are countless other universes just beyond our universe, but they are not our image, in the form of three-dimensional space, but a multi-dimensional, beyond our visual impression.

To sum up, I think that outside of the universe, there is still the universe.