How far can we go in space?

Scientists accepted their defeat, The map of the universe has finally been drawn, no matter how hard we humans or our future generations try to get out of this boundary of space, we can't. And the reason is also explained What is the reason for that? And that's all we'll know in today's article. Which will surely surprise you.  

Light of Speed

The world's fastest light travels distance as much as in a year. This is called a light-year, which can make seven rounds of the earth in one second, and it can cover a distance of 300,000 kilometers in one second. Our Milky Way galaxy stretches for about 200,000 light-years. Inside, there are more than 400 billion suns, now you may be thinking that the Milky Way galaxy produces many stars every year. So you are thinking completely wrong because only about three stars are born inside the Milky Way each year 95% of the stars, we see in the sky right now. In fact, they were born and are now getting old. And we humans are at the end of these stars That is why the number of new stars is slowly decreasing over time. Not only that, but this universe is getting farther and farther away from us every moment This is due to its continuous and rapid expansion.  

Milky Way galaxy

Our Milky Way galaxy is part of a group of galaxies, including fifty small galaxies and the Indro Meta Galaxy. This is called a local group with a diameter of ten million lightyears from one end to the other. In this way, hundreds of local groups come together to form a large supercluster And the Super glister that has a local group inside it is called Lanekia Super glister This is just one dot of our surveyable universe Because there are millions of such super glisters inside this universe, which we can see That is, an observable universe with more than two trillion galaxies, Today, if we travel to the surrounding galaxies even with the speed of light, So 95% of the Universe is out of our reach Which is scary just thinking That we cannot get out of space beyond a limit But why is that? And how it all got out of our reach. 

Big Bang Theory

In fact, it has to do with the Big Bang, the beginning of our universe When there was a big explosion in a thousandth of a second. And from an invisible particle, huge galaxies began to form. And so atomic distances began to change into light air distances and that's how things started to happen. As if it had been mapped in advance After this expansion, Gravity began to pull them back, so where the distances were shorter, Gravity brought them closer together and so local groups like Gloucester's and Super Gloucester's began to form. 

but things that had spread to a higher level and the effect of gravity on them was minimal because of their immense distance They began to spread more rapidly, which means outside of our local group There are so many types of galaxies, who are not affiliated with our local group due to lack of gravity. On the contrary, they are spreading rapidly to this day That is, as fast as the universe is expanding, our distance from these external structures is getting farther and farther away. And the pace of its expansion is constantly increasing, but we do not yet know the real reason behind it. 

Maybe it's the effect of dark energy that is responsible for spreading the distances of the universe.

Maybe it's the effect of dark energy that is responsible for spreading the distances of the universe. That is, within the observable universe There is such a border of human beings in this universe, outside of which our same universe is expanding faster than the speed of light. And any galaxy that crosses that line once is out of our reach forever. We will never be able to contact him. 

Read: What Happened to Ham in Space? *Sad Story of Ham*

About 95% of the galaxies, we have seen in the sky to date have crossed the border. But then the question may arise in your mind that if 95% crossed the border. So how do we see them today? In fact, these galaxies are so far away, the light that allows us to see something. It is reaching our eyes today from these galaxies. 

somehow our sun disappeared So for the whole eight minutes, we don't even realize it

Light of Stars

Suppose a galaxy is one million light-years away and it's light before it goes to the edge. last time, she walks from there and get here today. And the last time its light came out before it reached its border, it would take a million years for it to reach the earth. That is, we are looking at a picture of it a million years old, but it must have crossed that border a million years ago. But its light reached us today That is, we humans see every star and galaxy in the universe, not in real-time, but in its past. This whole sky is already gone. But we are getting their light today, like sunlight that reaches the earth in eight minutes. Due to the immense distance from the earth, and if somehow our sun disappeared So for the whole eight minutes, we don't even realize it Because its old light must have been reaching the ground for eight minutes continuously.

We don't know what galaxies across this border actually look like, because some light from their past will come into our telescope. That's all we can see That is why we can only see pictures of the millions or billions of years ago, now that they are away from this border, they are out of our sight forever. About 60,000 stars cross this border every year and since you read this article, till now almost 2 million stars have crossed it. 

Colonization

If a location of space is cloned For example, after Mars, on a planet of a nearby star

The question is, if 95% of the universe is away from us, then the remaining 5% is left. Will we be able to reach it fully in the future? What we call the observational universe. The answer is no, because 18 billion light-years away galaxies, That we are seeing are slowly moving forward. But inside space, it would take us 11 million light-years to reach our own local cluster. If the total age of a common man is assumed to be sixty years, so think how many generations will be born and grow old Just to get there, and it takes the same amount of time to return, Even if you freeze the body with the latest science of the future and Be able to travel in space So this local group will be the limit of us human beings And of course the local group is expanding, but not so fast As many galaxies and all the stars across this border If a location of space is cloned For example, after Mars, on a planet of a nearby star, we may be able to travel to the rest of the local group galaxies. 

The observable Universe

Which is such a small part of our observable universe that you add ten zeros in a row after zero. Because dark energy will send these galaxies away with time. And the galaxies that are nearby at the moment will merge into each other due to gravity, The galaxy Andromeda will merge into our Milky Way galaxy to form a new Andromeda galaxy in about four years. But by then the local group will have gone so far away that none of its lights will reach us. Because he must have crossed that border. 

Whatever generations will be born on this Malcolm Ida Galaxy They will see only darkness and gloom in this universe except their own galaxy. Where there will be no light in the distance and no trace of anything will remain, they have no clue about the Big Bang or the universe. And they won't know anything like that What we humans know today That is why they will think that the whole universe is what it was made of. Obviously, this estimate is based on scientific data because circumstances suggest that within the next few centuries The Hour may come. So, if we have a few centuries of time, think about it, we haven't been able to get out of our solar system so far, so the local group is a long way off.