Planet 9 and extraterrestrial lifeforms.

Above; A concept image of Planet Nine.((Interesting engineering, A strange object 65 billion miles from sun could be the elusive Planet Nine)

Can the AI finally find Planet 9? 

There is a possibility that AI found Planet 9 from old data. There is the possibility that the round around the solar system takes 23 years. But the question is always, how does that planet hide in the Kuiper Belt? How that object doesn't disturb the Kuiper Belt objects' trajectories? The Planet 9 might not have lifeforms. But it can have dust from other solar systems on its shell. 

That object is just a candidate. But maybe the Planet 9 mystery is at least partially solved. There is the possibility that there are many planets outside the Kuiper Belt. The Mars and Moon-size objects are hard to see from this distance. 

There is a possibility. Researchers, or AI found Planet 9 at 65 billion miles away from the sun. If that is true. This can be the greatest scientific finding after Pluto in 1930. 

(Interesting engineering, A strange object 65 billion miles from sun could be the elusive Planet Nine)

That object is only a candidate. But it could solve the mystery of the disturbances in Neptune's trajectory. The other possibility is that this finding makes the mystery more complicated. The planet candidate was found when the AI analyzed two old datasets from IRAS and AKARI. 

And those things show interesting but weak objects in the infrared area. The AI and JWST might also give interesting data about that mysterious object, which is very cold. And if that object is so cold that its temperature is almost the same as the cosmic background that tells that this, still hypothetical Planet 9 has no internal nuclear reactions. The planet would be geologically dead. And that supports the theory that introduces Planet 9 as some kind of rogue planet that the sun captured. 

"Doubts over signs of alien life on exoplanet K2-18b are rising: 'This is evidence of the scientific process at work' If the ultimate result of this story is that the public is more circumspect about future claims of life detection, that's not a terrible thing."(Space.com, Doubts over signs of alien life on exoplanet K2-18b are rising: 'This is evidence of the scientific process at work')

And then to the living planets. And the possibility of finding alien life forms. 

There are lots of planets that have carbon dioxide and methane in their atmosphere. Those chemical compounds can also form in non-organic reactions. It's possible that if there is carbon in the planet's atmosphere and the red dwarf erupts that gas turns carbon dioxide if it faces oxygen. The high-energy flare can cause the carbon burns in the planet's atmosphere. 

There is also methane in the very cold moons like Titan. So that means the methane and carbon dioxide can give the life sign. But those gasses can also form without biological processes. The exoplanet K2-18B is the best candidate for finding lifeforms. But confirming that thing is hard. Only journeys to those planets can give answers about the lifeforms. 

But when we think about techno signatures we face one interesting paradox. We can use things like Dyson's Sphere-type megastructures to find alien civilizations. But that requires that those aliens have Dyson's spheres. If those megastructures do not exist and we find the alien cities from exoplanets that thing would be very difficult. There is the possibility that those hypothetical intelligent aliens don't make those megastructures. 

They might use some other energy sources like captured GRBs to harness cosmic energy. We think lots of things about aliens. The new observations tell us that the superearths are more common than we thought. That can mean that lifeforms are more common but intelligent civilizations are not as common as somebody calculated. We can search for life from the Universe rest of our existence. 

There is the possibility that the first contact with other solar system species is the organic bite on the Kuiper's Belt asteroid. Maybe that organic bite is bacteria that froze during the interstellar trip that took billions of years. The deep freeze in the space between stars and lack of sunlight might store those organism's DNA. It's possible. That supernovas push those organic bites across the universe.  

There is the possibility that someday we can capture some alien artifact like space probes. That thing will change our way of thinking forever. But until that day, which can come tomorrow or after a thousand years we can just search aliens. We can try to think what they might look like, and what their sky might look like. But we must be careful. Space is full of mysteries. 

https://www.astronomy.com/science/can-we-detect-alien-artifacts/

https://interestingengineering.com/space/planet-nine-could-be-strange-object

https://www.space.com/space-exploration/search-for-life/doubts-mount-further-over-signs-of-alien-life-on-k2-18b-this-is-evidence-of-the-scientific-process-at-work