The mystery of the rings of the binary star WR-140 is solved.

The rings around binary star WR-140 formed because the O-type, very hot star travels across the Wolff-Ryat star's dust and gas. Or the thing that causes those rings is the solar winds of those stars colliding. And that forms the high-energy gas that causes the ring-shaped structure. 

(JWST image vs model of WR140. Credit: Left image: NASA/ESA/CSA/STScI/JPL-Caltech. Right image: Yinuo Han/Peter Tuthill/Ryan Lau"(ScitechDaily.com/Baffling “Spiderweb” Star Discovered – Is It an Alien Megastructure?)

"Raw and processed 3D model of WR140 shells after 18 orbits (or 144 years) of cyclic dust formation. Credit: Yinuo Han/Peter Tuthill/Ryan Lau" (ScitechDaily.com/Baffling “Spiderweb” Star Discovered – Is It an Alien Megastructure?)

So the rings have no alien origin. But the fact is that also cepheid stars or lone Wolff-Ryat stars can send gas rings around them. When the cepheid star pulsates its energy production changes. 

When the size of the star decreases pressure and temperature inside it increases. And nuclear fusion will increase. Then that rising energy production pushes the core of the star outwards. And even if the size of the star decreases when the pressure inside it decreases the high-energy gas continues its way through the universe. 

Or some neutron star or pulsar can form that kind of structure. When the energy pike from a pulsar hits the star. That thing increases its energy production. Also, things like white dwarfs that erupt at intervals of a certain time can form rings around the system.  In that case, rings can form straight from the white dwarfs. Or they can form when energy hits another component of the binary star. 

https://scitechdaily.com/baffling-spiderweb-star-discovered-is-it-an-alien-megastructure/

https://astronomyandtechnology.blogspot.com/

Remnants of 10 billion years old Earth discovered in white dwarf's atmosphere.

"Artist’s impression of the old white dwarfs WDJ2147-4035 and WDJ1922+0233 surrounded by orbiting planetary debris, which will accrete onto the stars and pollute their atmospheres. WDJ2147-4035 is extremely red and dim, while WDJ1922+0233 is unusually blue. Credit: University of Warwick/Dr. Mark Garlick" (ScitechDaily/Astronomers Discover Oldest Planetary Debris in Our Galaxy – Remnants of Destroyed Solar System")

In space is a binary star system of two white dwarfs WDJ2147-4035 and WDJ1922+0233. The age of WDJ2147-4035 is about 10,7 billion years old and it spent the 10,2 billion years cooling as a white dwarf. WDJ1922+0233 is much younger. 

And it's almost sure. That those white dwarfs impacted each other. Then they started to orbit each other. So those white dwarfs have been separated a long time ago. 

An interesting thing is that white dwarfs are remnants of the stars, quite similar to the sun.  If the red participant of the binary star WDJ2147-4035 was really like our sun, it spent an incredibly short period of its life as the star that has nuclear fusions and its energy production. That means WDJ2147-4035 produced energy for only 0,5 billion years. 

"The astronomers used spectroscopic and photometric data from GAIA, the Dark Energy Survey, and the X-Shooter instrument at the European Southern Observatory to calculate how long the stars have been cooling. They found that the ‘red’ star WDJ2147-4035 is around 10.7 billion years old, of which 10.2 billion years have been spent cooling as a white dwarf". (ScitechDaily.com/Astronomers Discover Oldest Planetary Debris in Our Galaxy – Remnants of Destroyed Solar System)

The blue participant of that system WDJ1922+0233 pushes debris to the red participant WDJ2147-4035. And that means the atmosphere of that red dwarf is polluted by planetary debris. The thing that makes this necro-planetary system interesting is that both white dwarfs might have an independent planetary system. 

The remnants of the earth-like planet in the red dwarf's atmosphere are causing interesting speculations. Necroplanetology means that science research the remnants of exoplanets near dead stars. The most interesting of the star types are white dwarfs because they were once like the sun. 

And if there is some kind of civilization in the universe that is more advanced than humans. Remnants of that civilization could be found near white dwarfs. If that hypothetical civilization wants to stay alive after the star erupts as a nova. 

They must create an interstellar flight. But in that case, those civilizations would not return. And that means they must make only space arcs. The generations would change in the spacecraft fleet that speed is about 0,1-50% of the speed of light. 

Or create giant space stations that would go to the shadows of those planets. In that case, planets could protect giant O'Neill cylinders where those creatures are moving when they cannot stay on their planets. 

When we are thinking about that earth-like planet remnant in that white dwarf system that is 90 light years away from Earth there is the possibility that the origin of that planet is somewhere else than in this binary dwarf-star system. 

By the way...

What is the difference between nova and supernova? Nova can mean many types of stellar explosions. But one determination for nova is that is the end of the life of the star that is too small for forming neutron stars. So, if the result of the star's last explosion is a white dwarf. We should talk about nova. But from the Wikipedia page about nova, you can read more about that eruption. 

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

https://www.sciencealert.com/necroplanetology-the-study-of-planets-dismembered-remains

https://www.sciencealert.com/remnants-of-ancient-earth-like-world-seen-being-eaten-by-a-star

https://scitechdaily.com/astronomers-discover-oldest-planetary-debris-in-our-galaxy-remnants-of-destroyed-solar-system/

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

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

https://astronomyandtechnology.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

The finding of the planet remains near one white dwarf would cause some terrible visions of the future

Image: NASA

The finding of the planet remains near one white dwarf would cause some terrible visions of the future

When we are thinking about the evolution, we would someday face the level of the genetic homogenous, that we would be like sisters and brothers in a genetic point of view the things. Even if we humans would not destroy ourselves with nuclear weapons and polluting the entire planet, we would someday use all combinations in the DNA molecules, what is making us different, and then out entire population would be in the risk by facing the virus or bacteria, what will terminate entire of our population.

In fact, if we would someday start to manipulate our own genomes and control the evolution for getting more possibilities of connecting the nucleoids together, we would face the evolution level, that we will transform the other species. But if we would face the limit of those combinations, would there be some epidemics, what will terminate the entire population. And if we would live long enough as the species, we might face the situation, that the sun would start to transform the red giant. That means that we can move to other planets and moons because the habitable zone of the star is moving outwards because the star is growing.

Then it will wear out to end its fuel and then it will blast as the nova or supernova. Nova or supernova will destroy the entire solar system, and then the human race, what might look like a little bit different, what we are looking like now, would move to other solar systems, by using giant spacecraft, what will travel in the space about the speed of a couple of percents of the speed of the light.

And those spacecraft missions would find the new planetary system, what would offer us the new habitable world. In the spacecraft, the genetic diversity would be in the primary element in the survivability of the travelers, what will travel in the space somewhere in the distant future. This scenario is caused also some terrible visions in the mind of cosmologists.

In the spacecraft, the key role while traveling in the space is genetic engineering. The thing is that by using genetic technology and connecting the genomes from the other species, we might get more combinations in the DNA molecule, and this would save our civilization until the sun has been exploded as the Nova, what causes the forming of the White Dwarf. That kind of star is forming in the situation, where the mass of the star is too low for creating the neutron star or black holes. The thing is that there are no endemic nuclear reactions in the white star would have bought in the minds of cosmologists that there could be life forms on the surface of the white dwarfs, what has been cooled enough.

But the temperature of the surface of those carbonite stars would decrease in a very long period and takes billions of years that the temperature of the surface of the exploded star would be so low, that the cells can live on it. Also, that white dwarf must also start to orbit another star. And this would be the thing, what puts brakes to look for intelligent civilizations, what is living on the white dwarfs. This situation would be very extraordinary, but it's possible.

Scientists are found the planet remains of the planets near one white dwarf, and that would seem quite interesting in the point of view of the SETI-program. The white dwarf is the result of the end of the stars, which are similar to our sun, and that means that those planets would have intelligent life forms, what are much more advanced than we are.

And if the hypothetical civilization would reach the necessary technical level, it would move to the space stations and transform those space stations to the interstellar spacecraft. In this scenario, the intelligent life form would live in its own solar system, until the middle star is exploding, and then the civilization would be forced to leave their home solar system. And those spacecraft, what that civilization would make will be huge. The explosion of the center star of the solar system would create the "grasshopper-civilization".

One of the most hazardous things, what SETI has ever imagined. "Grasshopper civilization" would have forced to leave their home planet, and then those giant spacecraft would travel in the universe looking for the next solar system, what can be colonized. But during the long journey in the space, what will take even millenniums that civilization would be lost contact with the planets, and then they would arrive at another solar system. Those hypothetical aliens would seem the planets as the dirty places, where are only bacteria, which could destroy the entire population.

And that's why those aliens would use robots to collect genetic material from those planets, for modifying the bodies of those aliens, what would be extremely weak, and they would not have a chance to live any planet in the universe. Because those aliens would not have a relationship with planets, except as the material sources they could target the extreme powerful radio- or ion ray in the nucleus of the planet, and then use the particles what they can collect to fixing their spacecraft.