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What if we are alone in the Universe?




What if we are alone in the Universe?

1) Describe the size of the bubble or distances that are used in this hypothesis. 

The universe is a very strange and large place, which means that there are billions of galaxies, and that means somewhere would be intelligent lifeforms. The dimensions of the universe are so huge, that the light travels 200 000 years across the milky way, and from the Andromeda galaxy is at the 2 537 000 light-years from our galaxy, what means that we are seeing objects at that galaxy like they were 2 537 000 years ago. That means that when the light has gone to travel from those objects, the Dinosaurs were rulers of the Earth. 200 000 000 years ago the ants and other bugs like flies became to Earth. 

So that means that if those aliens would live in the Andromeda galaxy, we cannot make contact with them. And if we would send the message to that hypothetical civilization they will get the message 2 537 000 years later. That means that the human race has been transformed to some other species, and that means that we cannot ever get an answer if the message would not be lost in the cosmic radio background. 

1.2) The origin of life is always an interesting thing

If we are thinking about the origin of life, that could be almost everywhere in the universe including planet Earth. If the meteorite would bring the organic material from the universe, that doesn't mean that it would be that the origin of that organic material is either on Mars. Maybe some asteroids like Ceres, Vesta, Juno or Pallas are the origin of that hypothetical material. 

That means that the meteorite could be formed in the cosmic impact, where the meteorite would be impacted to some icy moon of Jupiter or Saturn, and that has brought that material to the impact course with Earth. And that thing caused that life has started to advance on Earth because of that planet. 

1.3 The "organic material doesn't necessarily mean living bacteria

But that meteorite can also come from the other solar system, and one funniest theory is that some humanoid emptied the toilet of their spacecraft. This kind of hypothesis is one of the most interesting ideas, that I ever faced, but as you see there are many other more or less seriously introduced theories about the origin of life. 

The organic material could mean chemicals and molecules like amino acids (1), or some other chemical combinations which are forming the RNA (2) and DNA molecules (3) after the many stages. Organic material can be fossils of bacteria or living organisms. And there are many other meanings for the term "organic material". 

2) So should we reform that question in the form, could there be only meaningless civilizations on the universe? 

"Describe the meaningless" would be the thing, that the instructor of this kind of work would say. And the answer would be that those civilizations would exist, but there is no way to make contact with them, because of the distance between Earth and that hypothetical civilization would be too huge, which means that the signals would travel even millions of years in one distance. This could be one way to explain, why we haven't got contact with other civilizations. 

There are many very interesting theories about that thing, and one is that our messages just are covering to the cosmic background radiation. And the reason for that could be an overestimation of the power of the radio transmitters. When the radio wave is leaving from the Earth, that thing faces the plasma, which is sucking the power of the radio wave. Or those aliens would not even want to answer. 

3) Truth is out there in the middle of billions of stars

Another thing could be that those aliens could be answered, but we couldn't just translate the code. Maybe Wow!-signal was the answer, but because we couldn't break the code, those aliens would just be thought that we are too primitive, and that is the root of the theory, that the Earth is the cosmic version of the Northern Sentinel Island (4), where lives very primitive people, what has not been in contact with modern civilization. 

But when we are searching the life from the universe, that thing is a little bit different than the work, what Albert Einstein made. So the theory of relativity doesn't help us if we want to find the alien lifeforms. But the thing is that we might be lucky, that there is not another civilization in our solar system. 






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