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There are really a lot of scientific papers most of which are freely available and I kinda search for scientific news on a daily basis.

I am absolutely sure, that there are a lot of habitable planets in our shear unlimited universe. See my more detailed comment above:

https://steemit.com/science/@n3bul4/earth-like-planet-discovered#@n3bul4/re-moharkan-re-n3bul4-earth-like-planet-discovered-20171115t190435980z

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