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Getty / Marcos del Mazo / LightRocket
Researchers have analyzed several factors that could presumably lead to a habitable environment, and determined that intelligent life may have arisen in our galaxy some 8 billion years after its formation.
A recently published study suggests that the Milky Way could contain alien civilizations, although there is a strong possibility that most of them are already dead.
Researchers from the California Institute of Technology, NASA’s Jet Propulsion Laboratory, and Santiago High School used an expanded version of the famous Drake Equation, which determines the probabilities of alien intelligence existing in our galaxy.
The study analyzed various factors that could presumably lead to a habitable environment, and determined that intelligent life may have arisen in our galaxy some 8 billion years after its formation.
Some of these civilizations may have been 13,000 light years from the galactic center, some 12,000 light years closer than Earth, where humans are believed to have emerged 13.5 billion years after the formation of the Milky Way.
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The study, which has yet to be peer-reviewed, also considered factors that may have ended these civilizations, such as radiation exposure, the disruption of evolution, and the tendency of intelligent life to self-annihilate, either through climate change. technological advances or war.
This suggests that any alien civilization that is still alive is probably young, since self-annihilation usually occurs after a long period.
“While there is no evidence to explicitly suggest that intelligent life will eventually annihilate itself, we cannot a priori exclude the possibility of self-annihilation,” the study says.
“As early as 1961, Hoerner suggests that the progress of science and technology will inevitably lead to complete destruction and biological degeneration, similar to the proposal by Sagan and Shklovskii (1966).
“This is supported by many previous studies that argue that human self-annihilation is highly possible through various scenarios, including but not limited to war, climate change, and the development of biotechnology.
