Solar systems like our own might be quite rare.

The image of the external solar system above this text introduces the system where are seven earth-type planets. There are the best chances to find extraterrestrial lifeforms. But there is a difference between intelligent extraterrestrial lifeforms and intelligent extraterrestrial lifeforms. If somewhere is another civilization they might be very far from us. And that thing brings interesting visions to the mind of people. 

The nearest known solar system that is similar to us is 3000 light-years away. And that means the solar systems that are like our own might be quite rare in the universe. Sometimes wise men are asking the question that should the solar system where are intelligent lifeforms have 8 planets like in our solar system and should the names of the aliens "Jack" and "Jill". 

The fact is that if we would send the message to that solar system, that is 3000 light-years from us. The message will travel there 3000 years. And the answer would take another 3000 years to travel to our solar system. So we should think what was the level of a human civilization 3000 years ago. And 6000 years is a very good time to advance. 

https://scitechdaily.com/stellar-contradiction-solar-systems-like-ours-may-be-quite-rare/

https://www.theverge.com/2017/2/22/14674088/7-planet-solar-system-discovered-conditions-for-life-water-nature-nasa

Image: https://www.theverge.com/2017/2/22/14674088/7-planet-solar-system-discovered-conditions-for-life-water-nature-nasa

"Artist’s conception of the central portion of the Next Generation Very Large Array. Credit: Sophia Dagnello, NRAO/AUI/NSF" (https://scitechdaily.com/10-year-astronomy-plan-calls-for-massive-new-observatory-to-study-exoplanets-and-black-holes/)

And then the question that repeats one time after one: Are we alone in the universe?

The thing is that there is the possibility that the nearest civilization is about 3000 light-years from us. So that means we would not have a chance to communicate with that civilization. 

The thing is that the distance to other civilizations would be even bigger than this 3000 light-years. So when we are asking the question: are we alone in the universe we should also ask the question: what if we are alone in the area where we could communicate with aliens by using systems that exist. 

The thing is that there is another civilization in the universe.  But if that civilization is thousands of light-years away from us that civilization cannot affect us. Or we cannot affect that civilization. The thing is that there are billions and billions of stars in billions and billions of galaxies. So for being alone we would be a little bit too lucky. 

If we are thinking that there are two similar solar systems to our solar system in every galaxy. There are lots of similar planets to Earth if we are thinking of the scale of the universe. In this case, I meant for intelligent and technically advanced lifeforms. 

https://scitechdaily.com/are-we-alone-in-the-universe-nasa-calls-for-new-scientific-framework-in-search-for-extraterrestrial-life/

The lifetime of civilization is one of the most interesting things. 

In the theories of the advancing of the civilizations, every single civilization must pass the test for reaching the Kardashev scale. The first test is that the leaders of the hypothetical civilization must realize that the things like interplanetary travel require nuclear technology. That technology is easy to transform as a weapon. 

And those weapons might cause that the civilization would commit suicide. But if that civilization finds the common goal they would reach the first step to Kardashev scale and learn to flight between planets. The second test would be when the civilization would start to make colonies to other solar systems. 

In that case, there is the possibility that there would be a conflict between the civilization and its colonies. And another version of the conflict. Is that the civilization would meet another civilization. And that thing causes star wars. But if the civilization is reaching the third step of the Kardashev scale. The origin of it turns meanless. If the civilization reaches the galactic scale. It would turn immortal. 

Of course, the end of the universe would put a limit on that race. But when the civilization will conquer the entire galaxy there is a small step to expeditions to other galaxies. The first steps are difficult. But this day science fiction is the routine of tomorrow. Technical advancing turns many things that were stories and theories yesterday practice of tomorrow. 

https://en.wikipedia.org/wiki/Kardashev_scale

The problems of SETI-program

Kimmo Huosionmaa

SETI (Search for Extraterrestrial Intelligence) program is one of the most dangerous programs in our planet. Even if we haven't get contact or signal from extraterrestrial intelligence, the telescopes might get it in next night. Or they can get contact beyond 1000 years. Some people think that waiting for a contact is like waiting for a train or something like that. SETI program is not so simple because we can't know when the first message is coming.

Or does it come in our lifetime? When we are talking about that project. If we will get the signal from other civilization, but we might ever take contact to those civilizations. They might be so far there, that we ever can't message together because the civilization might be in Andromeda galaxy. That proves the existence of alien civilization, but that doesn't mean that this civilization has ever meanings for us. That civilization would be so far, that even if they jump in their UFO:s right now, our sun would be turned a red giant before they arrive.

Problems of SETI program is that if we will get contact to other civilization, we might get under attack. But if we use the right technology we can hide our existence from aliens. We can cover our entire planet holograms, what makes humanoids to believe that our civilization does not exist. And of course, radio telescopes might use as a gigantic ECM-system, what makes our planet seem like there will not find any interesting. The system will be sent back waves to humanoids transmission, that they can’t see our planet's surface with radar and they can’t get repulses in their telescopes.  

That radiation makes the radio waves or their echoes weak, that they can’t go back to the transmitter. Or otherwise the signals what will be sent back to humanoids would be so powerful that they would think that this will be gigantic super earth, there will be no life forms exist. But this scenario is pure fiction if published information is true.

But everybody knows that federal authorities are not talking true all the time. SETI is one of the most complicated missions on Earth science community. If you want to investigate extraterrestrial civilizations you have nothing where to start. There is not even one single message what is proven that is coming from another star. If somebody believes extraterrestrial intelligence, that does not mean that he or she believes little green men, or why that person wouldn't believe that some people might have green skin. There is one great “if" in those scenarios.

If somebody has put the genetic what causes photosynthesis in the flora to human DNA, that will make the human skin transformation to green. But what kind of technology that speculative humanoid civilization might have. They might have the technology to create “wormholes", but the problem with wormhole travel is that that kind of stuff will need two black holes, what will put resonate to same frequency, and after that those black holes must be separated and another will pull to the place, where that civilization wants to travel. That will take very long time for that civilization, and success of that project can see until the trip is done. That’s why aliens must be sure that there is something interesting.

Otherwise, the trip is made for nothing. And it can take even thousands of years. But there is always artist’s freedom to use imagination about other civilizations. They might have gigantic Dyson spheres, where could be floating “island” in the middle of that colossal ship, what might be the size of a planet. That island would be in the area, where is not gravitation field, and that area might use for production, what needs absolute zero-gravity condition. There might be nano-technological and biotechnological research areas, where they create nano-robots and other that kind of stuff.

https://crisisofdemocracticstates.blogspot.fi/