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The researchers have refuted the existence of intelligent life in our galaxy by criticizing the Fermi paradox and the Drake equation
" Are We Alone in the Universe "was the great unknown Until now, humanity has not been able to solve with certainty. In fact, our culture has often moved a lot with only the possibility of finding another form of intelligent life. All sorts of preparations, badumptions, scientific theories and conspiracy have emerged from the subject. However today we have a new badysis that refutes everything we thought of extraterrestrials .
Researchers of Institute of the Future of Mankind, belonging to Oxford University, were responsible for this fact. In a study published in Proceedings of the Royal Society of London they pointed out that most likely there is no intelligent life, at least in our galaxy
But before addressing the badysis of scientists, we must understand what they were basing themselves on to say. All that is known as & # 39; Fermi Paradox & # 39 ;. Made by Enrico Fermi in New Mexico in 1950, the scientist questioned the possibility of the existence of extraterrestrial life.
Assuming the great possibilities of life in other planets, Fermi wondered: "where are they?" For the scientist, it was amazing that there was no evidence of extraterrestrials in such a vast universe. Thus, the paradox is reflected in a contradiction between the high probability of the existence of other intelligent civilizations and the null proof that demonstrates this fact .
Many things have been said since . One hypothesis has changed the badumption that the margin of living of an intelligent civilization is very short . Arrived at a certain level of technology, these same ones could extinguish themselves.
Then the radio astronomer and director of SETI (Search for Extraterrestrial Intelligence), Frank Drake made some calculations based on badumptions that gave a percentage of probability of meeting another civilization. Many relevant variables have been taken and nowadays this is very important in the scientific community. The operation is known as & # 39; Drake equation & # 39 ;, and is stipulated as follows:
- N : Total detectable extraterrestrial civilizations in the Milky Way
- R : Star formation rate in the galaxy (per year)
- fp : Fraction of these stars with planets
- ne : Planets as the Earth where life can live
- : Fraction of planets with life.
- fi : Fraction of those planets where developed intelligent life
- fc : Fraction of planets where life developed technology and tried to communicate.
- L : The time span in which life can exist (Between birth and extinction.)
So different hypotheses and theories have used the "Drake equation" to give their own results . Some were very optimistic, but this latest study carried the hopes of more than one
The findings
The recent study attempted to make an badumption with more detailed and current scientific data ] It is based on our latest knowledge in biology, chemistry and cosmology. In addition, it uses a range of probabilities instead of giving a single value, which includes different scenarios, unlike those who did these calculations before.
When we take into account the realistic uncertainty, replace point estimates with probability distributions that reflect current scientific understanding, we find no reason to fully believe that the galaxy (or l 39; observable universe) contains other civilizations and therefore we no longer find our observations in conflict with our previous probabilities. 19659021] When they did, the researchers discovered that the possibility that we are alone in the galaxy is much higher than we think given the really huge number of original planets possible . The authors claim that the possibility of humanity remains alone among the intelligent civilizations in our galaxy between 53% – 99.6%, and in all the observable universe it varies between 39% and 85% .
We should not really be surprised if we saw an empty galaxy . "
It should be noted that these calculations are made from our spatial proximity. This means that the probabilities apply only to our galaxy or to a part of the observable universe. The authors do not deny that it is more likely that there is life in a very remote part of the universe
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