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One of the oldest questions in the history of human thought is whether there are other forms of intelligent life in our universe besides human.
However, getting good grades has always been very difficult. A new study from the University of Nottingham, published in the Astrophysical Journal, uses a new approach to this problem. Assuming that intelligent life forms on other planets in a similar way to Earth, the researchers estimated the number of intelligent civilizations in the Milky Way that could hypothetically come into contact. The authors estimate that there could be more than 30 active intelligent civilizations in our galaxy.
In that sense, the professor of astrophysics at the University of Nottingham, Christopher Conselis, who led the research, states:
– Assuming that it takes five billion years for intelligent life to form on other planets, as it did on Earth, there should be at least a few dozen active civilizations in the Milky Way. And add:
– The idea is to look at evolution, but at a cosmic level: we call this calculation the astrobiological limit (principle) of Copernicus.
– Our study begins with a review of the Drake equation. Given that the time required for the development of a communicative intelligent civilization on our planet is about five billion years, there is a reasonable probability that life will develop on another planet in our galaxy at a similar time. This idea has not been confirmed, but it is worth exploring, because we see many examples of convergent evolution on Earth.
Research shows that the number of probable civilizations depends on the frequency with which they send signals of their existence into space.
If other technological civilizations had survived as long as ours, only 100 years since we began transmitting signals into space, the authors estimate that 36 intelligent technical civilizations could develop in the Milky Way.
(Flash)
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