Scientists believe that the galaxy has about 36 accessible alien civilizations

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 Scientists believe that the galaxy has about 36 accessible alien civilizations


This hypothesis is called the astrobiological Copernican principle. If the conditions are right, it will happen fairly from chemical reaction to star formation.

On earth like planets, civilization was formed between 4.5 and 5.5 billion years after star formation, under the strictest assumptions.

They calculated that there are four to 211 civilizations in the galaxy that can communicate with other civilizations today, and 36 is the most likely number. According to the research team, it will take 6120 years for our earth civilization to regenerate and survive before we can realize two-way communication with other advanced civilizations.

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