The expected interaction between aliens from other civilizations with humans is dated according to scientists.
Recent studies on calls Interaction with Extraterrestrial Intelligent Civilizations (CETI) investigated how many there may be in the Planet Earth galaxy. And from them they estimate how long should we wait for interaction between humans and extraterrestrials.
Although scientists cannot say how many other CETIs exist in the Milky Way, a separate study in 2020 estimated that it was probably there are 36.
Milky Way and first learning
The study conducted by the University of Nottingham (UK) used calculations related to Galactic star formations and the possibility that they host planets similar to the Earth in their habitable areas, spreading Glass.
The expected interaction between a foreigner and a human, in an illustration.
Despite the fact that its authors admit that scientists they can only speculate in the volume of CETI in the Milky Way until there is a positive discovery, they added that it remains possible to create models for “realistic estimates of the rate of emergence of such civilizations”.
Two hypotheses in China’s investigation
New research by Wenjie Song and He Gao of Beijing Normal University (China) and published in The Astrophysical Journal is certainly based on the aforementioned research and the article is considered two parameters.
First, it shows how many terrestrial planets can be inhabited and how often life on them becomes CETI. Second, at what stage in the evolution of a host star can a CETI be born?
The study looks at how many planets can be inhabited. Descriptive picture ESO
Using a series of scenarios based on these parameters, the researchers reached an optimistic and a pessimistic forecast how long do such civilizations take to interact with humanity.
As for one with good prospects, a star needs to have at least one 25 percent health before he came out a CETI and for each of the living planets in its solar system, there is a 0.1 percent chance.
This situation creates more than 42,000 CETIs in the Milky Way. Accordingly, the people have already decided they have to wait approximately 2000 years to interact with extraterrestrials.
Considering the more negative outlook, a star needs to be at least 75 percent alive before a CETI can emerge, and for every terrestrial planet, the figure points only to a 0.001 percent chance of a CETI being appeared.
An image of the Milky Way: NASA Photo
For example, events only created 111 CETIs in the Earth’s galaxy, which means aliens it will take them another 400,000 years to communicate with humans.
The worst hypothesis
However, Chinese research also suggests that people can never talk to strangersespecially in the pessimistic scenario.
And certainly this is due to many factors such as population problems, the nuclear annihilation Y climate change all of a sudden evil kites.
Hundreds of series and films discuss the arrival of a UFO and the possible contact.
Even in the arguments the worst appears, and it has to do with some possible radical ecological changes that could lead to the extinction of humanity certainly before 400,000 years.
Source: Clarin
