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.

Extended reading of Li Jiaqi: there is no two-way companion function in the drop Live Room 618 mobile phone e-commerce promotion: the head brand is busy with the live broadcast, and the small and medium-sized brands have fallen behind the US stock market. The closing price of the stock market is not the same. Stop at Duoduo station B and innovate again. Gaojinshan cloud rises by more than 15%. Source: solidot editor in charge: Zhang Zutao_ NT5054