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A new study recognized 17 exoplanets that can host harbor for life.


Researchers confirmed that 17 exoplanets might have icy geysers and oceans. Those exoplanets can host primitive lifeforms. And that thing is interesting. Water is urgent for life. Researchers found chemical compounds that are urgent for life from Saturnian moon Enceladus. So maybe on those exoplanets is similar conditions as on Enceladus. But the size of those conditions is larger. Maintaining the life exoplanet requires an atmosphere and free oxygen. 

If we search only primitive lifeforms the oxygen must be in those planet's oceans. The magnetosphere keeps the solar wind out from its surface. And without magnetosphere particle flow from the star blows the water molecules and atmosphere out. The ocean on the planet's surface offers good protection,  for the lifeforms against cosmic radiation. And that thing opens the new visions for life search. 



"NASA’s Cassini spacecraft captured this image of Enceladus on November 30, 2010. The shadow of the body of Enceladus on the lower portions of the jets is clearly visible. Credit: NASA/JPL-Caltech/Space Science Institute" (ScitechDaily.com/Life Beyond Our Solar System: NASA Finds Icy Exoplanets May Have Habitable Oceans and Geysers)



Can we find technical civilizations on water planets? We know. Intelligent and technically advanced civilizations cannot form on water planets. But those planets offer a potential place for the base because water protects the crew against cosmic radiation. And water offers a good hydrogen source. 


Water planets are planets whose surface is under gigantic oceans. That ocean can protect the primitive lifeforms. But the same oceans can offer a safe place for alien bases. This model is conducted from the idea, that maybe futuristic astronauts can live in the base, that floats in the ocean of the icy moons. The water can protect the crew that lives in that station against cosmic radiation. The water layer offers an energy source for the station. 

In the 1970's an idea about the buoy that gives energy to people. The buoy would use a capillary tube that pulls water from the depth through the generator wheel. The generator could give energy to the buoy. But in that model, the water uses a thermal resistor. That thing would boil methane or ammonia, which makes a good expansion for that gas. 

But then we can realize that gravity in those icy moons is far lower than on Earth. That means water can stay liquid at very low temperatures. And maybe some exoplanets have similar icy moons with Enceladus. Those icy moons are not easy to find, because they are so small and their gravity weak, that they cannot affect to planets' trajectories. 


https://scitechdaily.com/life-beyond-our-solar-system-nasa-finds-icy-exoplanets-may-have-habitable-oceans-and-geysers/


https://www.jpl.nasa.gov/news/new-organic-compounds-found-in-enceladus-ice-grains


https://setiandfermiparadox.wordpress.com/2024/01/11/a-new-study-recognized-17-exoplanets-that-can-host-harbor-for-life/


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