The grey aliens and the Hydrogen-Ocean (Hycean) planets are interesting topics for discussions about alien lifeforms.

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Can the grey color of the mysterious "Grey aliens" be the brains of the creature? 

Cosmobiology researchers have introduced that some intelligent aliens have their brains in the skin. The idea is that the grey skin of the mysterious alien creatures is the intelligent fungus. That means the brains of those aliens would be their skin.

There is one interesting theory about the "Grey aliens". The idea is that the "grey skin" of those creatures is the thinking part. Or the brains of that mysterious creature. In that vision, the grey skin would be the brains. That is interacting with a body that it uses.

So in this part of writing the idea is that "Grey skin aliens" are somehow true. Or even if they are not true they can give models for thinking what the intelligent alien creatures might look like. 

And the conclusion is that maybe there is the possibility that the alien creatures have thinking skins. The intelligent fungus is covering their bodies and controls them. The "grey aliens" are used as the model, what kind of intelligent alien creatures can have intelligent skins. But let's go to think about the primitive alien creatures, that might live in the oceans of giant water-covered planets. 

()https://en.wikipedia.org/wiki/Grey_alien

The Hycean planets can support life. 

The Hydrogen-Ocean or "Hycean planets" are giant, water-covered exoplanets with a thick hydrogen-based atmosphere. Some of those planets are orbiting their sun so close that they are locked. And the temperature on the dayside can be over 200 degrees celsius. The idea is that the ocean which depth can be hundreds of kilometers would not be so hot in depth. And the nightside will also decrease the temperature of the water. So maybe in those oceans is the living creatures. 

The clouds of steam that are rising from the oceans can decrease the temperature in the oceans. And the creatures that are living in those oceans are fully adapted to that environment. 

What kind of creatures those hypothetical and primitive alien species could be? Can they use photosynthesis or maybe the temperature of the extremely hot ocean for energy production?

The lifeforms can be algae or some other type of amoebas. There is the possibility that the algae are positioned to the bottom of the extremely deep ocean. And they might send the short-living cells to the surface. Those cells can produce oxygen and then they can store that oxygen in the vesicle that will fall back to the ocean for the food of that algae. The other version of these hypothetical lifeforms is algae or polyps. They have long tentacles that they will push to the surface of the ocean. 

The ends of those tentacles will burn, but they have enough time to create photosynthesis. Or those creatures might use the temperature of the hot ocean for making energy for them. Similar organisms have been met near "black smokers" at the bottom of the ocean on Earth. So why the hypothetical alien lifeform cannot benefit the temperature of the hot ocean as energy production? 

But when we are thinking about the form of the hypothetical alien creatures we must remember that we cannot close any possibility out before we are seeing those creatures. We know that the cells can resist high temperatures. One version is that the cell is covering itself by using slime. The slime isolates it from the hot water. Or maybe those cells are dividing so fast that the hot water cannot burn their genomes. 

()https://www.spaceflightinsider.com/space-flight-news/new-class-of-exoplanets-identified-in-search-for-extraterrestrial-life/

Image II()https://www.spaceflightinsider.com/space-flight-news/new-class-of-exoplanets-identified-in-search-for-extraterrestrial-life/

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

More about theoretical extraterrestrial lifeforms

More about theoretical extraterrestrial lifeforms

We must confess one thing, and that is we cannot know, what would some extraterrestrial lifeform look like. Because we don't have straight prove about the existence of that kind of lifeform. And if we are thinking about the fossils of planet Mars, we have not thought that they might become from Earth. 

When the giant meteorite hit Earth, that could throw water and other kinds of things even to space, and those ice bites can drop to Mars. But as you see this is one of many theories about this kind of thing. The life in the universe might be very common, but intelligent lifeforms might be a very extraordinary thing.

And the thing is that culture and technology are a little bit different thing than some kind of intelligence. This makes things like SETI-program so fascinating but in the same way so difficult. We don't know, what kind of things those organisms do, or what they are looking like, but as you see, we must say something. 

Those hypothetical organisms might live in different kind of conditions, and thing what is poisonous for us might be important to those aliens. If the conditions of the hypothetical planets would be similar to Earth, but there would be the giant landmass, there might live lifeforms, which cannot ever drink water. 

For those creatures, water can be poison, because it breaks the cells, and they can get all water from the food. In some other scenarios, aliens would live in the conditions, what is full of acid. In that case, those aliens might have slime cover, which isolates the body from the acid, or their skin would renew very fast because acid would remove cells away from the skin of those creatures.

 And for those organisms the conditions, where is no acid can be deadly, because the slime would sink that organism, or their skin would become too thick, what might cause death. Same way if the aliens would live in carbon dioxide, that means that pure oxygen would burn the mitochondria of those creatures. But those aliens are only hypotheses. 

Van Maanen's star and Epsilon Eridiani's connection with SETI-program. 

Van Maanen's star (Van Maanen 2) (1) is a white dwarf and one of the nearest stars of our solar system. The distance to that white dwarf is 13,9 light-years from us. The thing that the Sun would transform into a white dwarf at the end of its life has caused an idea that or theory, that this star might have civilization, what has moved to another solar system There is no proof about the civilization but the thing is that Van Maanen's star has once been giving fascinating ideas in the mind of SciFi writers and theorists, who have got idea, that this hypothetical civilization would move to Epsilon Eridani, before the Van Maanen's star has erupted as nova. But there is no proof about that. 

Epsilon Eridani is one of the stars, where is looked at the intelligent lifeforms. The star is very well-known because the OZMA-message (3) would send it to that star. This star is too young that scientists say that they could find intelligent lifeforms or civilization around it.  

And that star is only 0,7 mass of the mass of Sun. The thing is that Epsilon Eridani is cooler than our sun, and if there could be the aliens, they would not feel comfortable on Earth, because the sun is so bright, that the skin of aliens would burn. But there is one remarkable thing in that star and the solar wind of Epsilon Eridani is very strong, 30 times more powerful than the sun (4). That tells a very strong magnetic activity. Maybe it is caused that the star is very young, but there is another explanation for that. 

And that means that there have been happening something, what causes that effect. So is that star faced the GRB (Gamma Ray Burst), which means that it would get extra energy dose. That thing can cause that magnetic field would get stronger. But the energy for that thing might be caused by some other reasons and is it possible that the overactivity of Epsilon Eridani causes that the star has impacted with some red dwarf. 

(1)

https://www.universeguide.com/star/vanmaanensstar

(2)

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

(3)

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

(4)

The film about Epsilon Eridani

https://www.youtube.com/watch?v=r1JsVHc0fOg

Super-Earths and another kind of exoplanets

Super-Earths and another kind of exoplanets

Super-Earths are the most interesting thing in the universe, and when we are thinking about planets, what size or mass is about 2-5 times of Earth those planets can maintain lifeforms, what is quite similar with lifeforms on Earth. But the most important thing, in that case, is the atmosphere of the planet. 

And many times researchers have criticized that they are expecting that the life-forms of other planets are exactly similar to lifeforms of Earth. And that thing might be too much to expect. Those lifeforms could be very different than the lifeforms on Earth, and that means that even if those planets would be a copy of Earth, that doesn't necessarily mean that there could be as example animals. 

That means that the vegetables or flora don't need fauna for existing, and of course, those animals could have a hybrid body. That means that their skin could have chlorophyll molecules, which means that those animals could live in the atmosphere, where is no free oxygen, and that means that those species are both, they could be animals as well as vegetables. 

But when we are going back to think about exoplanets and Super-Earths, those super giant rocky planets what are forming the silicon and other solid elements could have a negative effect to the forming the Earth-size rocky worlds, where the lifeforms could be exactly similar with Earth, and the reason for that is simple. Those Super-Earths need very much material when they are forming, and that thing can cause those very heavy particles to simply tie all solid elements of the molecular cloud into themselves. 

And that means that silicon and iron would be lost in that cloud because all of those elements are sucked by Super-Earths. There is a thing that those supermassive planets can have size over half a Jupiter, and they are many times heavier than it. This means that this kind of particle can be extremely dominating in every solar system. But when we are thinking this kind of particles as the stabilizers of the solar systems, they can operate as well the favorable Jupiter as Jupiter itself acts in our solar system. 

But if the mass of that planet is two times of Jupiter, the right location of it would be a radius of two times farther than Jupiter, if the star is similar to Sun. And of course, the moons have also effect to the distance, which is suitable for forming of the habitable planet, because of seas and other things like rotation speed and the number of particles like dust between the planet and star also have affected the forming of the conditions of the atmosphere, where lifeforms what are similar with Earth can form. 

https://www.space.com/42813-most-fascinating-exoplanets-2018.html

Other civilizations and changing attitudes for things, what was self-evident in the past

Other civilizations and changing attitudes for things, what was self-evident in the past

When we are talking about things like other civilizations, we must go back to history and remember many TV-shows where the humanoids were some kind of joke. In that time there were no observations about other solar systems and in some popular scientific publications had the line that there would be no other solar systems and civilizations universe.

But as we know to develop the new type of telescopes what have new accuracy, there are observations about thousands of exoplanets. The last scientific news about the field of planet-hunting is the exoplanets, what are orbiting the Alpha Centauri, which makes possible that also double stars have planets. There are also remarkable observations about planets, what are orbiting stars, what is like the sun, but the observation of the multi-stellar system, what has planets are fascinating.

And when we are thinking about the forming of the planetary systems, we must realize that the brown dwarf can simply turn the planets to orbit it. In this kind of cases, the massive planet could have massive earth-size moons. But this is not writing about special cases, like planets that are orbiting the center star of the double-star system what members are far away from each other.

In that kind of cases, the planet could orbit between stars, and it might have life forms, what are active only a short period of the year of that planet. In this hypothetical case so-called open double-star systems where another member is in distance, what is the same, with a distance of Neptune, both stars might have own planetary system.

What if we would make contact with another civilization? Or rather saying, get signal from other civilization? First, we must understand that civilization could be very far away from us, and things like gravity lenses might focus that signal to our planet. That means that the signal would be visible only when the alien planet is in the right direction, which means that we could hear that signal only once.

So in those cases, we cannot even answer, if we want. And the second question is should we answer? If the aliens are hostile, we would be in big trouble. When we are facing another civilization, we must realize that the finding that thing would be the greatest scientific exploration, what we can think, and this kind of things are really difficult questions.

What we must do is to observe those signals, and then try to break their communications, and that thing is one of the most important things in the research. We should know exactly, who we would talk if we would someday answer. And before we would tell other people and the great audience about the aliens, we must say, that in that kind of cases, we would not need any kind of joke calls to those humanoids, or that thing could be really bad things.

So in this kind of things, we should hide the location of the star, where the signal has been coming. That would help the researchers to find out, what kind of thing is sending that message or signal. Here we must realize, that if the human race would someday receive the signal from another solar system, that would be the end of the era, that we would be only one intelligent civilization.

But the research of the possible extraterrestrial civilizations has been shown, how the attitudes are chancing also in the society, what is outside of the scientific community. The freedom of speaking about extraterrestrial civilization has been also symbolizing the changed attitudes, what science has been faced. There are many researches, which were not possible about ten to fifteen years ago, and one is the research about gender.

When I was young the gender was simply sex organs. That was enough, and until now we are faced that there are also other people than men and women, and that has been opened the eyes of the people, that the attitudes about the things, what were self-evidence are more complicated.

Elon Musk and nuking Mars-planet and terraformation of other words

Elon Musk and nuking Mars-planet and terraformation of other words

Elon Musk has introduced an idea, that we would nuke planet Mars, but the thing is that if we would want to just remove our nukes by exploding them the Sun would be better placed for that kind of an operation because the influence of those explosives would be minimum in that case. But in the case of terraforming the red planet, the nukes would be an effective way to sterilize the core of that planet.

The thing is that if we would like to terraform some other planet and live on its surface as we have lived on Earth, we must realize that there would be a problem with that thing. That problem is the primitive lifeforms, what can live on that planet, and one version of those lifeforms might be lifeform, what has been traveled on that world with a badly sterilized space probe. That thing can cause the evolution, that the bacteria would turn dangerous.

The problem of that thing would be the nuclear winter and a huge cloud of dust on that planet, which means that the increasing the carbon dioxide level on the atmosphere would take longer in that case. So nuking planet Mars would not have hoped effect. The thing is that before we can begin the terraformation, we must be sure, that there would not be any bacteria, what can cause infections.

But that thing is ahead in the distant future. If we would want to nuke some planet and hope to do something positive, we might think planet Venus. On the surface of that planet, the extreme nuclear winter might have a good effect and that would be a positive thing for hypothetical colonization of the planet Venus. But the radioactive cloud and waste would be problematic, and that's why we should forget those ideas of nuking some planets. But what kind of process the terraformation of the planet Venus could be?

Mars has very weak gravity and the problem is that the atmosphere would escape to space. And that's why the terraformation of Mars is quite difficult. So in the point of view of the stabilizing the atmosphere, Venus would be a more suitable planet for terraformation than Mars, because of stronger gravity guarantees that the atmosphere would not escape to space.

The planet Venus would have similar gravity field with Earth, and the problem is the extreme heat in the atmosphere of that planet. The idea would be simple, the carbon dioxide atmosphere would be filtered by using chemical filter and bacteria, what isolates oxygen from the carbon dioxide. And the level of the radiation would be decreased by using some big asteroid or mylar layer, which denies the sunlight from the planet.

Those layers could be like solar sails, but their mission would decrease the level of sunlight. And on the atmosphere would send the laboratories, what is connected with airships. In those laboratories would be grown the photosynthetic bacteria and cells, what mission is to increase the oxygen level on the atmosphere of planet Venus. Also, the sulfur eating bacteria, what would terminate the sulfur acid from the clouds of Venus, and the mylar layers would decrease the level of radiation, that the surface temperature of Venus would be decreased.

Sometimes I think that maybe someday in the future, would many other planets terraformed, and some of them might be members of other solar systems. In those cases, the surface of the planets might be sterilized by using high-power microwaves, because that denies the infections of the dangerous bacteria. But in those cases, we must feel a very great responsibility, because if we would create the new Earth, should we continue our lifestyle in that new same way as people have done on Earth.

What if there are some primitive but at the same way intelligent habitants? Should we play god to them and give every kind of technology in their hands, or wait that they could learn to make things on their own? This is the problem in the colonization of the Universe. But it is also been a problem with the relationship with Europeans and native people on the Earth.

And somebody has introduced a nice idea, that the human race is some kind of primitive villain on the Universe, and humanoids would follow, how we advancing. Maybe that is true maybe not, but this is one thing, what we should think if we someday will travel to the stars. In those cases, we could be the superior humanoids for some primitive humanoid race, and that's the thing, what we should think. Should we play god or let those beings alone? And should we destroy things like asteroids what are threating those aliens?

The parallel universe theory or the multiverse theory explained

The parallel universe theory or the multiverse theory explained

The parallel universe theory is also known as "multiverse theory". The thing is that this theory is allowing the existence of the other universes, megastructures what we are calling as the universes. 

This theory determines the universe as the supergroup of the supergroups of the galaxies. Another determination for the universe is that thing is one giant megastructure of the supergroups of the galaxies. And the thing is that parallel universe theory allows the existence of other megastructures in the dimension than the megastructure, where we are living.

Parallel universe theory would also explain the mystery of dark energy. The dark or additional energy comes from the other universes. The idea in the parallel universe theory is that those universes can be in the same dimension, that means that they are in the great distance from each other. The universes can be one inside another and maybe in some black holes is another universes. That means that we would see the internal universes as the black holes.

The parallel universe theory explains that the universes are like pearls in necklace if they are all in our three dimensional space. Those universes might be in other dimensions, or they can be things, what is existed between the "Big Bangs",  

But universes can also be in other dimensions and other times. The last one means that the universes can follow each other. And when the old universe would collapse, the new one would form from the "Big Bang". That means that the " Big Bangs" are following together simultaneously but the time period between those things is extremely long.

And this theory continues that because the planets are forming the solar systems, solar systems are forming the structures of the galaxies, the galaxies are forming the structures of the galaxy groups, and the galaxy groups are forming the superstructures of the supergroups of the groups of galaxies. And the supergroups of the galaxies are forming the giant megastructures in the universe.

 When we are starting to think that cosmic megastructure, we can start to think that is it possible that even universes are forming the similar megastructures with the megastructures of the galactic supergroups.  When we are thinking about the parallel universe theory, that theory allows the existence of other megastructures what are called as universes.

https://physics.stackexchange.com/questions/34710/what-is-the-difference-between-parallel-universe-and-multiverse