Over 30 alien civilizations: scientists made an important discovery for the fate of mankind - ForumDaily
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More than 30 alien civilizations: scientists made an important discovery for the fate of mankind

Researchers have discovered that in our galaxy there can be more than 30 alien civilizations. Writes about it Independent.

Photo: Shutterstock

In a new study, scientists found out how many planets in the Milky Way galaxy can be home to alien life, suggesting that life develops on other planets in the same way as it develops on Earth, and comparing it with planets that could become the basis for a similar evolution .

Scientists have discovered that there can be dozens of active civilizations in the Milky Way. This study can also shed light on the fate of mankind. It gives reason to believe that our prospects for long-term survival are lower than we might have thought.

“There must be at least several dozen active civilizations in our galaxy, assuming that it takes 5 billion years to form intelligent life on other planets, like Earth,” said Christopher Conselice of the University of Nottingham. - This is the same evolution, but on a cosmic scale. We call this calculation the Astrobiological Limit of Copernicus. ”

The astrobiological limits of Copernicus come in two forms.

The “weak” limit suggests that intelligent life forms on the planet at any time after 5 billion years. And the “strong” limit indicates that life that formed between 4,5 and 5 billion years ago can be reasonable.

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The new study took the “strong limit” as its basis. In addition, it was suggested that intelligent creatures must develop in metal-rich environments. This is because humanity evolved near metal-rich environments due to the metal present in the Sun.

A previous study in 2012 established the “minimum stellar metallicity” necessary for the formation of planets similar to the Earth.

Researchers have used these assumptions about where life can form to understand how many planets in the Milky Way meet the necessary requirements.

Finding any civilizations in our galaxy is highly dependent on how well we can pick up signals sent into space.

These include broadcasts and television broadcast from satellites. If these technological civilizations exist as long as ours, which sent signals into space for the last century or so, then it is estimated that 36 intelligent civilizations can exist.

Even if this is true, it will be difficult to interact with them. The average distance from Earth to any possible planet with a developed civilization is 17 light years, which makes communication very difficult.

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Another scenario is that we are the only intelligent life in the galaxy, and that other civilizations are dying out before we can find them.

“Our new study suggests that the search for extraterrestrial intelligent civilizations not only shows the existence of other life forms, but also gives us an idea of ​​how long our own civilization will last,” said Professor Conselice.

“If we find that intelligent life is a common occurrence, then it shows that our civilization can exist much longer than several hundred years, and if we find that there are no active civilizations in our Galaxy, this is a bad sign for our own period of existence. In search of an extraterrestrial intelligent life - even if we find nothing - we open our future and destiny, ”says Conselice.

A new study was conducted by the University of Nottingham and published in the Astrophysical Journal. This is not the only recent news suggesting the development of intelligent life in the galaxy.

Scientists have discovered a potential habitable planet called Proxima B around the star of Proxima Centauri, about 4,2 light-years from the Sun.

It receives a comparable amount of energy that the earth receives from the sun. If there is a liquid form on the planet, then the development of living organisms is quite possible there. But much remains to be done before this can be confirmed, for example, to check whether there is an atmosphere and chemicals on this planet that can support life.

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