The universe is infinite

Look into the night sky. What do you see? Distant stars, immeasurable void, the cosmos, the infinite universe. And what is the universe?
The void space vacuum, which occasionally removed at great distances from each other, there are galaxies, stars, planets, asteroids, comets, cosmic dust and other elements of matter.

To reach the nearest planet outside the solar system needs several years of travel, and the speed should be equal to the speed of light, which we are unlikely to achieve in the near future. Can you imagine such a great distance? But it is the closest planet to us.

In the universe, billions of stars are visible from the solar system. In fact, their number is much greater. The universe is infinite, it has no boundaries. Before them it is impossible to reach and see. They are not even imaginable. What do we know about the universe? Almost nothing. We can only observe from Earth, starlight that reaches us through millions of years. During this time, perhaps already the star disappeared into the abyss of infinite space, becoming not more then one dust cloud. It is said that the universe is expanding. It only expands in our visible horizon. Using modern technology, we can see the light from distant stars, weak, residual distorted, fading light vibrations. Why we do not see what is to be next? These vibrations just do not reach us, fainting and extinguished by such a long journey. So, we see only a part of the universe. If we were able to reach the most distant star visible to us, from there we would see more farther away, innumerable stars, space objects, or are you hoping to see the "brick wall"? In the universe there are no limits
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The Universe is a huge cycle, a vicious circle, Collided, or the way you like. It can not fly. If, however, to imagine that we can fly through it with incredible speed, then returning back to the world from where we flew, the time will be drastically completely different. Because the universe is impossible to fly through. where ever we go, we are always heading back to the starting point, it attracts us as an electron that can not break away from the nucleus. But we can not fly away, because the distances are so great that they even can not be imagined.

For comparison, we are on the globe on a straight road. More precisely, it seems to us that we are right, but Earth's gravity distorts our direct way. This we now know that the Earth is round and that we are going in circles. The universe distort space as the Earth distorts our way. Across the Universe pull it quickly, even if we fly at the speed of light. It's just that we will pass the Earth less than a millimeter per year, but in this time grow the grass and trees, dry up rivers and seas, there are new, towering mountains, crumbling cliffs, canyons are formed, everything changes. And if billions of years we go back, it will be a completely different world, unknown to us, we do not even realize that we are at the starting point. We'll go ahead and look, where is the starting point and where the end of our journey is, where the border are. But we did not find. Modern humanity is not able to fly around the universe, finding its limits, but simply to recognize its greatness and infinity.

Space. First contact

Space. As we would like, at least a glimpse of what it hides from us. It is terrible to imagine what's there. Some people still there are those who now think possible at this very moment whether in the universe or on our star having the same dreams of meeting a completely different, strange and unknown world. What will happen in a hundred, a thousand years? We meet their own kind, and what the outcome of this meeting, the collapse of one of the two civilizations, or both dawn? We do not know ... What is it, that other world has??? Now many people claim to have seen, and some even come in contact with representatives of other civilizations. Is it true or just one of the ways to attract attention? Why they did not come into contact with us at a high level, and do not show their true colors? It is not clear ... Maybe the answer lies in the fact that they do not consider us as equals, so a bunch of questions we have now! 
Imagine that humanity has reached a height of progress and be able to get anywhere in the boundless space in seconds. What will happen? Even if we find a planet where life is fragrant, but who can guarantee that it will be similar to ours? Maybe we just do not understand that what we have found! After all, the manifestation of life is possible in many ways, not the fact that it will be similar to our own, even partially. Maybe some forms of life will remind us of the usual stone blocks, which we did not pay any attention, but they are, in their own way, alive, maybe it will be different gassing, we do not know. Funny, isn't it? Reasonable gases, which are able to travel in outer space without any tools, without which we can not travel! Maybe it will be a form of matter that we did not know before, and could not even imagine that this could be possible. And imagine that the universe is mirrored, that what happens in the half thereof, one is reflected in the other. And when you come to this side, we don't meet aliens from outer space, but ourselves. Why not? After taking our individual planets, we can see many examples of symmetry. And should we look for another life in general? Not whether it will ruin us? So far in the world there are more and new diseases, and think about what we can bring to your home from the other worlds, and how much! Are we ready for it? Do not die out from an unknown illness? If humanity is to find a formula for immortality, then no doubt, you can safely begin the journey to other worlds, as well ... The meeting of different worlds buddy is not always predictable. Ground for fantasy is huge! It is terrible to think about what technologies are available to us in the case of goodwill of our "brothers in mind." And perhaps then mankind will not be satisfied with more internal strife and unnecessary wars. Even if we meet in the vast expanses of the universe civilization less advanced than we are, we have a chance to send them to the right path, and not making the same mistakes that we have done for centuries, millennium. Be wise teachers or obedient disciples, that the inheritance of one of the parties. Whom shall we? Or, still, to remain neutral and not to interfere in the course of history of other planets, as may it already be done by our visitors from outer space, which we increasingly learn from the media even if it seems fantastic but most do not believe it. And while we are alone on this small planet, lost in the vast expanses of cold and full space. And who knows, perhaps it is now for us to meet new guests already in a hurry and we should just be patient and do not destroy our own world before their arrival.