A dream to find alien life is one of the biggest paradoxes in science.

We want to find alien life. We want to prove that we are not alone. But same time. We are afraid of that moment. We want to believe things like a flat universe because it closes the past universes away. We want to believe that UFOs are only fiction.  

We always think. That hypothetical aliens have the same relationship with time as we have. We always believe that they are exactly similar to what we are. In our models, they advanced on the same planet where their race was born. So they cannot move to another planet or solar system when their sun turns into a red giant. 

But could those aliens have some kind of hair that protects them against the eruptions of stars? If the crew doesn't want to return, interstellar travel is not as difficult, as we want to believe. 

Hypothetical aliens must just stop time in their spacecraft. And that allows the crew to travel between stars in their lifetime. In all models, the hypothetical space crews want to return home. But what if that thing is impossible? Or what if they are made by using genetic engineering and they saw their senders? In that case, those crews will not miss their homes because they spend their entire lives in space. They might be born in spacecraft and sent on their missions. 

We always think that the crew of those capsules want to return home. Outside that craft, the generations are changing.  And that means the senders of the crew will not ever see that they return. 

Futurologists made millions of models of what kind of things allows the theoretical space race to travel between stars. And one thing is that those aliens use genetically created crews that are not missing their homes. Or maybe those aliens are lost their home planet. In that case, there is no return if their home planet is destroyed in the supernova or nova explosion. In that case, aliens cannot return home even if they want. 

In normal scenarios, we think that time means mission time that craft spends on its mission. In those kinds of hypothetical interstellar missions, the time means, that somebody waits for that crew at home. What if there is no home left?  Time loses its meaning.  In this case, that nova or supernova destroyed the crew's home planet. That thing means that the crew continues its journey in infinity. 

But when we are thinking about the religion and culture of the hypothetical space race, there is the possibility that the space aliens would use the cloned or artificially made crews. That means those interstellar crews would not have any relationships with planetary aliens. Because that thing makes their mission easier. 

But same time we want to evidence that we are not alone in the universe. And that is one of the biggest paradoxes in history. When we find new planetary systems. And new exoplanets.

 We are facing one of the biggest crises in history. That crisis is that "certainly there are no exoplanets and aliens" turns to form that "maybe there is no alien life near us". "Certainly there are no aliens, and intelligent aliens do not exist" is one of the biggest mistakes in history.

When somebody says that they believe in UFOs they were cheated and blamed. Nobody even wanted to see another truth than the exoplanets do not exist. And now we know that almost every star in the universe has some kind of planetary system. 

But can we find aliens? That is a different question than can we find intelligent aliens? What kind of aliens can we see first? Can we see bacteria, or can we see intelligent civilizations? We expect that those alien civilizations are using radios as communication tools. 

Or they should use combustion engines. The biggest problem with the SETI program is: How to track civilization that doesn't use combustion engines or radio communication. Or even if those aliens use radio communication, we should find the right frequency. 

The communication lasers would not give similar signatures to radio communication. If the civilization locates in the electromagnetic field. It might rather use communication lasers than some radio transmitters for communication.  Finding bacteria is even more difficult than finding an extraterrestrial civilization. 

https://www.quantamagazine.org/alien-life-a-dream-of-discovery-finds-new-hope-20221103/

https://scitechdaily.com/new-evidence-for-liquid-water-on-mars/

Super earth with lifeforms. Lifeforms on super-Earths are possible. But they can be far from what we know on Earth. 

Liquid water alone doesn't make life. Things like Gliese  436 b proved that there could be water on an exoplanet and that water cannot vaporize because of strong gravitation. The Gliese 436b is the so-called hot Neptune there strong gravitation makes hot ice on its core. 

The temperature on that exoplanet is over 300 Celsius (Over 500 Kelvin). There is the possibility that there are lighter worlds with liquid hot oceans. So the water itself means almost nothing in the search for life. There is the theory that on the planets like Gliese 436b is lifeforms that are like tapeworms. 

In that case, the ice protects those hypothetical 2D lifeforms from the eruptions of the M2 red dwarf. But that kind of lifeform would be very primitive. Strong gravitation means that the ice cannot melt. And if there is some kind of alien lifeforms they are far away from what is on Earth. But otherwise thinking, the alien lifeform would be fully adapted, to their environment. 

The model for that hypothetical alien tapeworm is taken from the worms that are near black smokers on the ocean floor. Some of those creatures don't need oxygen for their metabolism. But powerful radiation from the star and especially strong eruptions from the red dwarf are causing the lifeforms on that planet to be very unlikely. The hot temperature means that there are only primitive lifeforms on that planet if there is some kind of alien life. 

Intelligent life requires conditions that start to favor intelligence. That means all planets are not suitable for forming intelligent lifeforms. If conditions on the planet are too stable large number of descendants is enough. So there is needed a catastrophe. The disasters like meteorite impacts cause conditions where species must start to think about how to find food. When the entire planet is buried under snow. The creature must know where to dig for food. Or the result is death from hunger. The right conditions are making primitive lifeforms possible. But the crisis is making it possible that evolution starts to favor intelligence. 

https://en.wikipedia.org/wiki/Gliese_436_b

What happens when you drop into the black hole?

What happens when you drop into the black hole? The fact is that you will turn to spaghetti. The first thing is that all particles elongate near the black hole. The elongation is the result of the energy load that the black hole loads on it. But another thing that causes this strange effect is the tunneling. The intensive speed and energy load press the particle to flat. When the particle travels in the transition disk around a black hole its energy level rises to a very high level. So the event horizon is the point where the material is visible for the last time. And another determination for that point is the energy level that cuts interaction between particles inside the event horizon and outside particles. 

The second thing is this finally all particles are elongating to the 2D wires. And the survivability of an astronaut depends on the materials along with the quark's ability to return to the ball-shaped objects. The thing that happens when particles travel through a wormhole is that on the other side of that energy channel that elongated material faces the quantum gate. That quantum gate causes the sub-atomic particle will release its extra energy to that quantum field. And that thing can turn that 2D structure that looks like anyon-particle back to the ball-shaped form. 

 The third thing about elongating near a black hole is that elongating is not similar to elongating because something pulls you by the legs. The elongation near a black hole differs from the elongation of objects in the gravitational field of the Earth in that the black hole elongates all the particles. All particles elongate near the black hole. Because of the massive gravitational field. 

Elongating in Earth's gravitational field causes the outer core of the material will be elongated. But that elongation will not affect the subatomic particles. 

The black hole will turn all particles into a thing that looks like two-dimensional tape that looks a little bit like anyon-particle.  But would we survive? If those elongated particles would not separate from each other that means when they are coming out from the wormhole. There is the possibility. That those particles form will turn back to a ball when that particle hits the quantum field on another side of the wormhole. 

The black hole is surrounded by a material disk that shines radiation that energy level is very high. The areas near the black hole are extremely high energy. And that makes it possible that our astronaut vaporizes before that person even sees the event horizon. The radiation that comes just near from event horizon has a very high energy level. That energy level crushes particles.  But they can also turn into miniature black holes. 

So why do some researchers think that the spacecraft can drive through the wormhole?  In those ideas, the black hole affects the spacecraft and transforms it into another black hole before it falls through the event horizon. 

That thing that can save a person's life is that black hole that forms around that person. But anyway, hypothetical traveling through a wormhole requires. That the spacecraft must reach extremely high speed. That high speed minimizes the gravitational effect. And of course, the closest known black holes are very far from us. 

But is it possible that the black holes are making interstellar traveling possible? 

There are many opinions about interstellar travel. The fact is that interstellar travel might be possible. But the fact is that there is no way to make that thing in human life. If we can wait 300 or 1000 years we can send the interstellar spacecraft to another solar system. But that thing means this.  We must wait for the first message even centuries. There are two ways to make an interstellar flight. 

The first one is automatized probes or unmanned craft. And the last one is the manned system. The problem is that the journey to other solar systems takes so long that the manned system means that people should say goodbye forever to those crews. And even unmanned systems require over a hundred years of travel to other solar systems. So makers of that system will not see the data that the probe sends. And sending those probes requires that researchers can win multiple technical challenges. Even unmanned systems are enormous things. They require large-size global investments and lots of technical advances. But they are easier to make than manned systems where the aging of the crew is one of the biggest problems. 

 Manned interstellar systems require more advanced technology. And also the changes in the political and cultural environment on Earth. The interstellar flights are still hypothetical or theoretical events. And we are just making our first primitive models of how to make those journeys. But maybe somewhere in the future, that interstellar journey turns into reality.  The first steps are always the most difficult. But if we want to conquer the entire galaxy we must dare to make the first interstellar spaceflight. But those things are far away in the future. 

The main problem: How to cross the speed of light? 

The only known place in the universe where all particles like photons and electrons, along with protons and neutrons are traveling at the same speed is a black hole. The massive gravitation pulls even light into it. And because escaping velocity is higher than the speed of light that causes that all particles behind the event horizon have the same speed. But how to deny elongation of the object? One version is to transform the astronaut and craft into very heavy by pumping energy into them. 

So if all atoms in the astronaut's body and craft turn into a black hole that can make it possible for the object can travel through the event horizon without stretching. The fact is that heavy objects that have their powerful gravitational field stay in a form longer than lightweight objects. That's why heavy exoplanets can orbit their central star closer than light planets because their strong gravitational field keeps them in form.

There is the possibility that all material can turn to neutrons or even black holes. But the return of the material to its original form is the problem. Only the energy pump should be enough for that thing. 

The problem with crossing the speed of light is that the energy flow should continue to the spacecraft when it reaches the speed of light. That thing can solve by driving craft against the energy flow that transfers energy to it. 

When we are thinking that speed is the energy flow from surrounding material to the object we are facing an interesting thing. When energy flow from the environment stops. The acceleration stops. The problem with the speed of light is that no particle can transfer energy to a craft that travels with the speed of light or the speed of photons.

Nothing can cross the speed of light. Because there are no particles that can transfer energy to that object. After all, that particle should travel faster than a photon. The fastest known particles are photons that have no mass at all. And when the object accelerates energy of flowing to the object from faster particles. At the first, the acceleration is fast because the energy flow is strong. 

But when the object reaches the cosmic speed limit the only particle that can pump energy to the object is the photon. And when the object reaches the speed of photon energy and flows stops. At that speed also time stops. Because energy flow away from the object ends. And that stops aging. 

But crossing the speed of light means that something needs to start the energy flow to the object again. One version of the hypothetical possibility to make sure that the energy flow to the object continues after the craft reaches the speed of light is simply to shoot photons from the front of that craft. 

Impacting with those photons causes the energy flow will continue after its speed is almost the speed of photons. Another version is to accelerate the speed of the object. So close to the speed of light as possible. And drive it straight course to the wave motion. That means if the speed of the object is high enough it can transform into a black hole before it impacts the event horizon. And that denies the elongation. 

https://likeinterstellartravelingandfuturism.blogspot.com/

Was there some primitive life on Mars, or are those things so-called fake fossils?

The thing is "what if Mars looked like Earth" somewhere in the past? Was there some kind of primitive lifeforms on that planet during the short period before it freezes? Or are those images portrait so-called fake fossils? 

And even if they are portraying so-called fake fossils. Or results of some kind of chemical reactions that thing doesn't mean that this is not interesting. The thing that can form fake fossils is the proto-reactions that are forming the RNA and DNA molecules. 

The very first organisms on Earth were not DNA-based. They were like bacteria which genomes were in the form of RNA. And the energy for those organisms came from volcanic temperature. 

If we think that Mars lost its lithosphere and core in the cosmic impacts that mean there could be a short-time wonderful environment for forming the self-replicating molecules or pre-RNA and DNA molecules. But that period was quite short when the planet was starting to freeze and it lost most of its atmosphere. 

Before the first RNA-based cells. Or even the first RNA molecules formed there was a long series of chemical reactions on Earth. That means there were the proto-reactions that formed the first self-replicating molecules. And then the first RNA molecules formed. The most interesting of those images is the image bottom right. That thing can be the "proto-DNA" the molecule that started to turn to spiral. 

There is the possibility that those things are primitive bacteria. But are they formed on Mars? That is an interesting question. There is the possibility that the impacting asteroids brought those organisms to the Red planet. That thing means that there is one small possibility. The possibility is that some extrasolar asteroid impacted Mars. 

https://scitechdaily.com/life-on-mars-or-false-fossils/

Image:https://scitechdaily.com/life-on-mars-or-false-fossils/

There is a small possibility that Mars had an impact, with the extrasolar asteroid that could bring some kind of primitive fossils to that planet. 

The idea is that the giant iceberg was released from some water planet when some sun-type star erupted as a nova. Two white dwarf stars are quite near Earth. 

Those white dwarfs are Van Maanen's star (Van Maanen 2) and Sirius B the white dwarf that is orbiting Sirius A. The Sirius B and Van Maanen's star were once like Suns. If those stars had a solar system they crushed their planets. And the impact wave of the nova eruption sends debris through the universe. 

When we are looking at the age of Sirius B there is mentioned the age of Sirius B as the white dwarf. And the member or "pair" of the Sirius system. But once Sirius B was the sun-looking star that might have a solar system. Then that star lost its fuel grown to a red giant and erupted as a nova. Then it faced Sirius A and started to orbit it. So the originally Sirius B was an older star. 

Today we might not find the planets near those stars like Van Maanen 2 and Sirius B. And if Sirius A had some kind of planetary system Sirius B would destroy it. 

"Oumuamua was not nitrogen iceberg"

The fact is that "Oumuamua" is officially the asteroid that came from another solar system. Nobody ever landed on that cosmic traveler. And that means that the "Oumuamua" stays as the "possible asteroid". There is suspicion that some kind of eruption pushed that asteroid away from its solar system. 

So was Oumumua some kind of alien solar sail? The fact is that thing remains unknown. The fact is that there were no radio signals that came from "Oumumua". But otherwise, if we think that "Omumua" was some kind of recon craft or SETI-probe that craft might travel through the solar system and record signals. Maybe that kind of probe would be covered by ice that it remains stealthy. And then it can send the data to its senders. But was Oumumua that kind of thing? 

But when we are thinking the "Oumuamua". The visitor from the other solar system there is the possibility. That there is a large part of water on that asteroid. And then there is nitrogen on the core. The core of "Uomuamua" is covered by cosmic dust. And I don't know did somebody made the spectroscopic research of the surface of that asteroid?

So could the origin of the Oumuamua be near the Van Maanen 2 or Sirius B? The thing is that we believe that Oumumua was not alien spacecraft. But we are not sure about that thing. But we must keep our minds open. 

Before research is not completed we should not close away any possibilities. And nobody ever landed on Oumumua. And nobody ever took any samples of that interstellar traveler. 

That kind of visitor from other solar systems is always interesting. But even if it's the debris of a destroyed planet. Even if the entire Oumumua has not formed of water ice, there is always the possibility. There is the water has been stored in the small pockets of that asteroid. And in those pockets could be remains of the primitive or why not also advanced lifeforms that lived on some distant planets before its sun crushed that planet in nova or supernova eruption. 

https://www.universetoday.com/44985/sirius-b/

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

https://en.wikipedia.org/wiki/Van_Maanen_2

https://thoughtsaboutsuperpositions.blogspot.com/

The Phoenix model of reincarnation. And immortality.

A new study of the worms that can regenerate themselves is interesting to read. 

Theoretically, any animal in the world can reincarnate. Or naturally, at least the animals that are making eggs can make that thing. The thing is that the creature like a reptilian must only make a copy of itself in the egg. And that thing would create the reincarnation of that creature. 

But if we are thinking of reincarnation and immortality that thing is quite easy to make in the laboratory. The scientists must just remove the genetic material of the one-cell level fetus, and replace the removed material by using another individual's DNA. That thing makes it possible to create clones of any living creatures. 

The model where the organism would make the clones of itself and then transfer the data from their brains to the next generation has been made for the interstellar space journeys. The ability to create a new body by cloning itself would make it the individual creatures possible to travel thousands of years between stars. 

When the creature is getting old, the system would make the clone of its body. And then, the data would drive to the brains of that creature by using the teaching films or using the brain-core stimulation. The thing is that this kind of thing is never mentioned in the models of the interstellar spacecraft. 

The next thing is the high-tech version of the tale of Phoenix-bird. And immortality that can create by using high-tech equipment. 

Immortality is one of the most interesting things in the world. There are many stories and legends about that thing and one of the most famous of them is Phoenix. The bird that dies but at the same time it would create the egg and in the egg is the compy of that mythical creature. There is made the theoretical computing model what the Phoenix might be. If there is used the modern technology. 

The idea is that the bird would have a microchip in the nervous system. And when it dies it creates a clone of itself in the body. When the baby bird or clone is advancing it would just eat the microchip that is giving the electric impulses to the nervous system of the next-generation bird. 

So how that bird can burn itself? The simplest way to make that thing is just to create a situation. That causes the immune system is stopping working. That thing would cause that the bacteria will destroy  Phoenix's body immediately. 

https://scitechdaily.com/harvard-scientists-study-worms-that-glow-in-the-dark-to-learn-the-secrets-of-regeneration/

https://en.wikipedia.org/wiki/Phoenix_(mythology)

Image:https://upload.wikimedia.org/wikipedia/commons/4/43/Phoenix-Fabelwesen.jpg 

https://likeinterstellartravelingandfuturism.blogspot.com/

Thoughts of the futuristic image. And the "Cherenkov-thruster".

Image: Pinterest

This vision might be true in the distant future. The spacecraft has landed on the planet, which orbits the black hole. Maybe someday far away from this moment, some spacecraft will face this situation. But today that thing is only the imaginational or philosophical visions.

The image of crashlanding near the black hole is causing many types of thoughts in my mind. The question is can this kind of thing be the future of mankind? When we are thinking about the radiation of the black hole there is the possibility that the craft is pushing it outwards by using the x-ray counter radiation. If the jammer system can shoot the radiation back to the environment. 

That thing makes it possible to decrease the radiation stress to the body of the craft. The counter radiation or the photon impacting is the thing that might make the craft even invisible to its environment. If the system uses the photon impact it can deny the reflection. When we are analyzing this image, we must ask what the craft is doing? Is it loading its antimatter batteries by using the radiation of the black hole? Is that plate some kind of antimatter creator? Or is it some kind of radar which mission is to search the minerals from the ground? Or is the craft making the black hole in that plate?

If we are thinking of real interstellar space travel there are many things to solve before that thing can be done even by using the highly advanced multipurpose artificial intelligence. Of course, the craft could be the remote-controlled robot that uses the man-shaped sub robots for its mission. 

The system can use superpositioned and entangled particles for communication. In that system, the other side of the particle pairs is in the laboratory. And other is connected to the central computer of the spacecraft. In that case, the information is traveling like in the stick.

The superpositioned and entangled particle pair is acting like the needle and rod of the old-time LP player. And that thing makes it possible to communicate with distant spacecraft in real-time. But getting the spacecraft to another solar system takes its time. 

The information can travel between Earth and distant craft very fast. But the craft itself travels with very slow speed if we want to compare that thing with the distances in the universe. So can we someday make the spacecraft that travels faster than the speed of light? In some ideas, the quantum field around the spacecraft is removed. Or the quantum field at the front of the engine nozzle is removed. And the rocket shoots the high-energetic particle radiation through that area. 

The simplified diagram of "Cherenkov-thruster"

The simplified model of Cherenkov thruster.

1) Area where the quantum fields are removed

2) Particle flow

3) Areas where quantum fields are affecting. 

When the high-energetic particles are traveling in the vacuum where the quantum fields are not affecting they are traveling faster than the speed of light. When those particles hit the quantum field they are delivering their kinetic energy as the blue light flash. 

The second quantum layer can be the membrane that is made by using water molecules. That is positioned at the edge of the nozzle by using powerful magnets. But this type of thing is far in the future. 

The "Cherenkov-thuster"

Cherenkov-engine is the hybrid system that shoots high-energetic particles through the area where the quantum fields are removed. When those particles would hit the quantum field that thing would send the blue light flash. So there is the possibility that in the future. This kind of boosted photon rocket will send some kind of craft to other solar systems. 

In some visions in the engine chamber is created the black hole. That black hole shoots its radiation through the area where the quantum fields and scattering effects are removed. The problem is how to make that in practice. But maybe that problem will solve in the future. 

When the system shoots the radiation through that area. And it faces the point where the quantum fields are starting to affect it sends the photon or blue light flash. 

That kind of system can be called as "Cherenkov engine". The engine uses the slowing of the particles when they come from a vacuum to an effective area of the quantum field. So the Cherenkov engine will shoot extremely fast particles to the quantum bubble and those particles are sending photons and push the craft forward. The push against the quantum bubble will increase the thrust of the engine. And along with the ability to use heavier particles than photons is giving more thrust for that system. 

()https://kimmoswritings.blogspot.com/

The giant accelerator would allow interstellar traveling

https://crisisofdemocracticstates.blogspot.com/

Kimmo Huosionmaa

The power source for interstellar traveling is the major problem in those futuristic spacecraft. If we are thinking about Warp-drive, what can travel faster than light, we must realize, that we would need the brand new technology, in the very giant scale. The spacecraft that would travel faster than light must be base the technology, what is ever created in the real life, and making this technology really is the very complicated process. The shape of the spacecraft would be like some science fiction spacecraft, what uses antimatter or WARP-propulsion for increasing the speed of 80-90 percent of the speed of light.


And in this spacecraft would be particle accelerator, what could be like the linear version of "Hedron", what is located in CERN. That accelerator would be like some extreme long tube at the nose of the spacecraft, what might be quite similar, what is planned to use in "Project Thor". The difference would be that the device is equipped with antimatter-motors, what will accelerate it for speed, what is near the speed of light, and then the accelerator would be launched. But the size of this spacecraft would be much bigger, what is planned for "Thor".


The interstellar spacecraft would first accelerate the top speed, what could be something like 90 percent of the speed of light, and the particle accelerator would shoot the capsule to the top speed. The problem of this hypothetical spacecraft would be the size of this thing. The accelerator must be over hundreds of kilometers long, and the electricity, what is used in this gigantic rail gun is very high. This spacecraft would be built in the space, and it would be very huge. If it sometimes would be made.


So there must be the very powerful power source, that this very huge spacecraft would be worked. And after the spacecraft have been shot by the railgun there is no return back. The capsule would fly to Alpha Centaur in about two years, but the problem is the slowing. And of course, the home trip would be difficult. In one scenario this spacecraft would use sophisticated artificial intelligence, and it would have sub-robots, what would build another accelerator at the orbiter of the target star.


This kind of artificial intelligence could also make the copy of the spacecraft if that is damaged. This technology is called "Von Neumann technology". In this case, those robots would search suitable materials from asteroids, what is orbiting the star by using laser-spectrometers. Then the materials would be transferred to the factory, and then those systems can create microchips and other stuff, what is needed for new spacecraft. This kind of systems can help us to colonize the entire galaxy in the distant future, but there are many technical problems to win before the trip to stars would be real.

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/