the Nearest of them may be located at a distance of 17 thousand light-years.
In the milky Way may be 36 intelligent alien civilizations.
This assumption was made by scientists from the University of Nottingham in the UK in a paper published in The Astrophysical Journal.
the Researchers took as the basis of the Copernican principle, according to which neither the Earth nor the Sun is something special position in the Universe, and therefore, there may be other such planets with intelligent life.
Counting the probability of their existence, they considered the composition and activity of stars and the basic requirements for the origin of life on the planet. Scientists have also taken its definition of “intelligent life”, taking into account that the Earth took more than 4.5 billion years old, that she appeared and reached the current state.
If such a civilization were distributed evenly through the galaxy, the nearest of them would be at a distance of about 17 thousand light years from Earth. Since radio waves propagate at the speed of light, the message from Earth will take 17 thousand years to achieve it. Because communication between neighboring civilizations not yet possible, scientists say.
In the “most optimistic” scenario, to the nearest intelligent civilization may be about 1030 light years, but even that is too much for bilateral communication, which is 2060 years.
Anna Lysenko
