This possibility emerges from a new study on the existence of intelligent life in our galaxy that adjusts the parameters of the Drake equation
by the University of Nottingham. Translation: Ziv Adaki
One of the biggest and oldest questions in the history of human thought is: Are there other intelligent life forms in our universe? Obtaining reliable estimates of the possible number of such cultures is another great challenge.
A new study led by the University of Nottingham and published on June 15, 2020 in the Astrophysical Journal, examined the question using a new approach. According to the estimate that intelligent life forms have evolved on other planets similar to their evolution on Earth, researchers have obtained an estimate of the number of intelligent communicating civilizations that exist in the Milky Way. They calculated that there may be more than 30 such civilizations active right now in our home galaxy.
Professor of astrophysics at the University of Nottingham, Christopher Conselice, who headed the research, explains: "Assuming that the duration of time needed for the formation of intelligent life on a planet is 5 billion years, as on Earth, there should be at least a few dozen active cultures in our galaxy. " Consilis also says that "the idea is to observe evolution on a cosmic scale. We call our calculation the astrobiological Copernican index.”
The main author of the article, Tom Westby, explains: "The accepted method for estimating the number of intelligent civilizations (known as the Drake AB equation) relies on guesses about values related to life, and according to this method the opinions on the subject are very diverse. Our new study simplifies these assumptions using new information and gives us an informed estimate of the number of civilizations in our galaxy.
The two astro-biological Copernican indices are: that intelligent life takes shape in less than 5 billion years, or after about 5 billion years - like on Earth, where communicating culture developed 4.5 billion years later. According to strict criteria that require the planet to have a sun rich in metals equal to that of the sun (the sun is relatively rich in metals), we calculated that there should be about 35 active civilizations in our galaxy."
The research shows that the number of civilizations is highly dependent on the length of time they actively send signals of their existence into space, such as radio transmissions from satellites, televisions, and the like. If other technological civilizations survive a period of time similar to ours, currently the technological civilization has existed for about a hundred years, so at this time there are about 36 technologically intelligent civilizations active in our galaxy.
However, the average distance to them is about 17,000 light years, and with the technologies we have today it will be very difficult for us to locate them or make contact with them. The possibility that we are the only civilization in our galaxy also exists; Unless, the duration of survival of civilizations like ours is long.
Prof. Konsilis points out: "According to our new research, the search for intelligent civilizations will not only help us understand how life originated, but also give us an indication of how long our culture will survive. If intelligent life is found to be common, we can learn from this that humanity may exist as a technological entity for a much longer period of time than a few hundred years. Conversely, if we find that there are no more active civilizations in our galaxy, that would be a bad sign, indicating our limited chances of long-term survival. Through the search for intelligent life - even if we don't find any - we discover our future and our destiny."
For information on the University of Nottingham website
https://iopscience.iop.org/article/10.3847/1538-4357/ab8225
More of the topic in Hayadan:
23 תגובות
They were here throughout our entire human history. There is a lot of evidence, including in the Torah and the Bible. They created us in a process of genetic manipulation and there were also failures. Just as we talk about finding stars that in the future we can settle because our star is dying. Who guarantees that this did not happen to them as well. By the way, with the technologies that currently exist, our vision will not be realized in the foreseeable future.
By and large, clickbait title and not serious content as already written.
As a matter of fact, we have no probabilistic measures for the development of a communicating culture. We don't know what would have happened if the meteor that wiped out the dinosaurs hadn't hit the earth, if the earth didn't have a moon that creates tides and tides, if the magnetic flux of the sun had changed even a little and then the composition of the atmosphere would have been completely different, and so on. We also have no idea what the development vector of humanity is, if at all, and what communication technologies will be relevant in 20 years, we may communicate through quantum entanglements or who knows what, so expecting to communicate with cultures whose age differs from ours by more than 100 years is unrealistic ( The article speaks in terms of plus or minus half a billion years...).
They did not contact us, because it is against the Prime Directive!
No, YNET did not purchase and we continue to work on a forced volunteer basis. The title was translated from the original article.
A clickbait headline for anything.
What happened Ynet bought you?
to m. Yosef: As long as you do not have the necessary parameters and probability to create life, and the probability of an evolutionary development that will lead to the creation of intelligent, cultural and technological life, and the probability of preserving it for any of the billions of years necessary to create intelligent life as above, you cannot claim what is probable and what is improbable, because it is possible That the probability is so slim, so much so that we are not only the only intelligent life form in the galaxy, but in general the possibility of our future discovery of intelligent life is on the horizon - something in a radius of 30 million light years, in my estimation, far beyond the borders of our local group of galaxies.
Interesting. It is unlikely that billions of stars will only have 30-35 civilizations. Those who believe in the existence of aliens who visit here should be warned against meeting them. More developed than us and will be able to destroy life here. and fear of bacteria and dirt.
If the assumption is correct, it is likely that there is a culture that has already developed enough that it can reach us. Since this did not happen, the assumption is probably unfounded. Or you can't get there and then it's not interesting either.
Oh Nathan, you too? I thought I was the only one who went for a ride on David's spaceship jeep.
Dreams in Asfamia
Avi Blizovsky
Have more than five senses?
It's not… a bit…. Postmodernism?
Sense of balance? Hairs moving in the ear - is this another sense?
Those who have met know.
Those who do not…
He is the one who makes human assumptions.
?
"The universe is teeming with life! "
This is my way of explaining briefly.
Just like the infinite diversity on our planet.
why settle for 30,
Maybe we'll make a few more arbitrary assumptions and count 200 intelligent civilizations?
I expected a higher level article.
Man has many more than five senses. Just for example, the sense of balance, which happens to be in the ear, which is also the organ of hearing, the sense of gravity, etc.
There is no other life in the universe.
we are alone
internalize it already.
A reservation for wisdom and silence
You slaved a sea of words about nothing and nothing
You haven't changed anything
So why write nonsense?
A caveat to Tika wisdom
You slaved a sea of words about nothing and nothing
You haven't changed anything
So why write nonsense?
I, for Tommy, thought that someone might have made a little order in the parameters of the Drake equation, brought new data from Gaia (the satellite that scans the stars in the galaxy) etc., and maybe reached some interesting results. But what do I discover? This whole strange thesis is based on "the assumption that the duration of time necessary for the formation of intelligent life on a planet is 5 billion years". Why? It is explained there: because intelligent life developed on Earth within 4.5 billion years. This.
Oh, is there another discount there?” "Intelligent and communicating" cultures survive 100 years. Why? Because this is the time we communicate, and according to the ruling progressive Bon Ton we are going to kill ourselves with most of our stupidity within 20 years. (Really? Maybe there is something to this, given the criticism that progressives are actually making these days of the Western culture that created them).
So to call it "laughter from work" is a disrespect for the concept of hafiria.
Hello. Following on from the above article, I want to bring to your attention that a person has five senses!
I am sure that there is beyond man's ability to use his senses... other things in the universe that mankind does not and will never have the opportunity to see beyond his human abilities. That is why I state here that there is life or other forms of "life" beyond man's understanding.
The article is 47 pages without the severe style restrictions of the other newspapers. Beautiful.
A newspaper that allows 47 pages. Well done.
If aliens existed it is likely that they would have already jumped to visit us.. Maybe they are looking at us all the time and we are just not aware of it, like small fish in a huge aquarium
Paradoxically, human (Western) science prevents us from distinguishing many truths and is a kind of barrier against a correct view of reality. Even if aliens came down from spaceships, we will not believe because we are trapped in a science derived from a monotheistic belief in one God who created everything. So our chances of finding any intelligent life form will be that it is not intelligent as long as it does not know how to say how many are 2 plus 3. Even if scientists never know this, their view is narrow and limited to the search for "one truth". Just like a priest preaches belief in one God.
In short, just an inflammatory and misleading title, and the bottom line is:
…”No, there is no evidence that there is even one more culture for milk,
Except for some speculative human accounting trick, according to which they could have been
30 such imaginary civilizations, that we have no technological means to verify their existence,
If there were…
By any standard of scientific methodology, the Drake Equation is pseudoscience
Because it assumes a possibility that science has no way of confirming or disproving.