The closest technological civilization can be in the Milk of about 33,000 lights, and to exist at the same time as mankind, it must exist at least 280 thousand years, or rather millions of years. The representative of the Institute of Sciences of the Austrian Academy of Sciences Manuel Sherf and Helmut Lammer at the EPSC-DPS 2025 joint conference of the EPSC-DPS 2025 presented such conclusions. This was reported by the EUROPLANET portal.
The conditions needed to play a key role in the calculations of difficult life and stability. The planet must have a plate tectic, which regulates the amount of carbon dioxide in the atmosphere, with oxygen and nitrogen-rich atmosphere. Without it, the biosphere will sooner or later be politicized, and technological civilization will not be able to emerge.
Scientists have found that about 10% carbon dioxide can be able to maintain the biosphere up to 4.2 billion years. However, at least 18% of oxygen are needed to appear in technological civilization. Without it, it is not possible to exist, nor the open fire needed for metalwork.
Researchers have reached a conclusion that at least one civilization should live at least 280 thousand years to live at the same time as the evolution of the Earth. The average life expectancy of each of the ten civilizations must exceed 10 million years.
"The probability of alien civilizations in our galaxy is very small and directly depends on how long they can exist," Sherff.
However, according to him, the search should not be stopped. "Even if the opportunities are small, the only way to find out the truth is to continue the search. If we find nothing, it will confirm our calculations, and if we find it, it will be one of the greatest scientific discoveries in history. "
Translation of: Euromedia24.com
