Titan has failed the "alien test".

Titan has failed the "alien test". 

Even if Titan fails the alien life-tests, there is a possibility that there are tiny lifeforms in the oceans of Europe moon of Jupiter or under the ice of some other icy moons. The thing is that similar lifeforms, what is found near the "black smokers" at the bottom of the ocean, can found every icy moon. 

The thing that life need is energy, which can start the production of amino acid, and something that makes forming of the cells. During history, researchers are tried to find alien life from some other planet or moon, and this thing is connected with the thing, that sometimes people expect that the alien lifeform means always intelligent life. Intelligent life is not the same thing with life. 

So this is the thing that sometimes has been caused good jokes around the SETI (Search for Extraterrestrial Intelligence) program. The thing is always in that project that every planet, where could be similar lifeforms what we are must be identical with planet Earth. So in that kind of project, the middle of the question about extraterrestrial intelligence is human. Every single carbon-based intelligent lifeform must be similar to humans, and this is one of the greatest mistakes in the SETI-program. 

The thing is that if we are thinking about the planet, what mass is 1,5-2,5 times larger than planet Earth as the hostile place for the life we sometimes hear the argument that the gravity on that planet is so heavy, that the life is impossible. So the weight, what mass on the Earth is one kilogram would weight 1,5-2,5 kilograms on those planets. Sometimes I have asked is every rocky planet, what is a little bit larger than planet Earth always super-earth? 

The hypothetical alien lifeforms that are formed on that planet have adapted to that environment. So for them, their home planet is paradise. The same way we can say that creatures like fish are adapted to their living environment, what is hostile to every animal, what lives on dry ground. And our environment is also hostile to fishes and other water animals. So we can think that the same way alien life is adapted in their environment. 

The tree has traveled as a long evolutional route with humans, and the tree is not intelligent. But the same way every single species on Earth has the origin in the same cell, what swam in the Cambrian sea. 

But the thing is that alien life is not necessarily intelligent. The only intelligent lifeform what we know is human. We are the result of the extremely long evolution. And at this point, we must realize that tree on the yard is also a result of the same long evolution with human, and those trees are not intelligent. The problem with human intelligence is that we are creating so many weapons, and we are so violent, that the human race is the biggest threat to itself. The truth is that human is the only species, which systematically kills other humans. 

We can say, that the mark of intelligence is the ability to use tools and make buildings. This means that human is the only species on our planet, which can create technical systems, and transform its environment. Without buildings, we would be in trouble in most areas of the Earth. And, sadly, we destroy our ecosystem with so high speed. 

https://www.livescience.com/titan-is-lifeless-due-to-quantum-mechanics.html