Many scientists believe that there are high chances that intelligent life exists in the universe. Using computer simulation, a researcher from Denmark was able to show that alien civilizations limited to the speed of light did not yet have time to visit Earth
Yoram Ored, Galileo
Many scientists believe that the chances of the existence of intelligent life in the universe are many. According to this estimate, the universe, and also our galaxy, is rich in intelligent life. If so, why have we never been visited by aliens on Earth? In order to deal with this mystery, and not through delusional theories but through the scientific method, the vast distances in the universe must be taken into account. The speed of light, the maximum speed in the universe, which as far as we know today is also the maximum speed at which intelligent aliens can move, is an enormous speed, but limited.
Rasmus Bjork, a physicist at the Niels Bohr Institute in Copenhagen, Denmark, offered a possible explanation for this mystery. He claims that aliens may not have come to Earth yet because... they didn't have enough time to do so. Rasmus used a computer simulation that takes into account the distribution of the solar systems in which life may exist. These are solar systems located in the so-called "galactic habitable zone" of the Milky Way, our galaxy. The galactic habitable zone is an area where the solar systems are close enough to the center of the galaxy to allow the presence of elements suitable for the formation of rocky and life-supporting planets, and at the same time too distant to suffer excessive damage from life-threatening factors such as asteroids and deadly radiation coming from the center of the galaxy.
Bjork started from a working assumption that the alien civilization is capable of sending eight spaceships at a speed of 30,000 kilometers per second to search for life throughout our galaxy (30,000 kilometers per second is an infinitely higher speed than the speed of our spacecraft today, which reach speeds of a few tens of kilometers per second).
Each of these spaceships will build another eight more spaceships, which will also continue their search for life. The spacecraft will search for life only in areas defined as the "galactic life zone". According to Björk's simulation, the time it would take to explore 4% of the galaxy in this way would reach ten billion years, which is about half the life of the universe. In this state of affairs, it's hard to be optimistic about an imminent visit from intelligent aliens.
On the other hand, it is possible that Björk's working assumption is wrong - will an advanced civilization really be limited to only sending eight spaceships of the type we have described? Is this the fastest way to discover life? Is it right to limit the speed that such a civilization could reach to thirty thousand kilometers per second? And maybe you can reach speeds approaching the speed of light? And in general, the assumption is based on the maximum speed of light as the highest possible speed. But maybe an advanced civilization really discovered a way to move at a higher speed, based on physical principles that are not yet known to us?
28 תגובות
Yasu Hanan,
This is grandma Badalek, how are you?
I wanted to tell you that this evening an alien came to the house and asked for a portion of amba.
I was slightly horrified, but finally I agreed to his request, after that he asked to listen to Greek music, I sent him to listen to Ilios Radio, but it is important to me in Dalek to know what Meran says about it.
Thank you for opening a little window for grandma!
As other people have written, we are for the next million years alone.
There are many new technologies in development and in the next 50 to 100 years many things will be discovered that will help humanity understand more about the universe, but it's all worth the ass if we don't take care of ourselves.
Because basically, if we don't protect our planet, it will be impossible to exist and our civilization itself will destroy itself because of people who don't think about the future.
Other civilizations don't care about stupid humans who aren't smart enough to protect their planet..
Give it time and wait because the aliens won't be visiting anytime soon..
Everyone here is cheating. You don't write with spelling errors. You write things related to the article. It's so cheating. Everyone writes their name and family instead of a nickname like mine. The most vocal of all of you is Noam. I went to his website. That's why the website is cool.
I believe in aliens and I have proof that they exist and they came to our house and I recorded them and took a picture of one of them right cool and go to my website it's also about aliens
No, Levi.
It seems logical to me that in the next million years we will be alone, and every few million years a civilization will emerge and disappear in less than a million years.
Even if there is someone in another galaxy right now, it is not and will not be possible to communicate with them, and in our galaxy, according to my assumptions, there is probably no life at the moment.
Another idea that may work on the assumption that there is (intelligent!) life in the universe, is that there is a type of quantum communication faster than the speed of light or in other dimensions, which we have not yet reached (wow what retards 😉 )
* The information curve
700 miles
The only possible way today to increase the speed force is to build a device that emits anti-gravitons [every body in the universe emits such particles, this is what pulls us to the ground, if we succeed in building the device our speed will be increased much more, maybe 700 meters per second instead of 50. Or to create infinite fuel you need to know How to turn the dark matter into energy which would give super thrust I guess. And live forever, the only way to get to eternal life is a pulsar, you have to go around the pulsar, its huge mass will slow down our every movement and we will return to where we will find that we have stopped the aging process. It sounds simple but we'll get it done by the end of the 122 or so. In short, as long as we don't find a way to conquer at least the solar system and utilize all of it, it will take a lot, as we have only found 0.6, the beginning of the information gap. Or they control their galaxy it's rank iv if I remember correctly it's the most powerful civilization that uses ways we can't even imagine!
Even if your conclusion makes sense h rishon
It will not seem strange to you that in a short period of time only our little planet is infested with intelligent life
Peace.
I read Hagai Netzer's book, but I have a different perception of the problem... -
We know that we have not been able to detect any transmission, and this seems puzzling given the tremendous odds for (intelligent!) life in our galaxy alone and in the universe in general.
To my pleasure, this works out if we accept (and you don't want to accept) my assumption - that intelligent life, in the event that everything is good (as in 20), and reach the physics of the middle of the XNUMXth century, destroy themselves within .. we give them a million years.
I'm large, aren't I?
In terms of time, we are alone (intelligent!!!) maybe in the universe, but after we are gone intelligent life will emerge somewhere else.
Everything works out. The wheel turns.
Reasons for destruction are (in my opinion) from wars to diseases and destruction of the environment.
One fact must, in my opinion, remain, and that is the power in evolution. If it's money, company, control - it's the desire for more, more, more than those next to you. survival of the fittest.
That's why today they don't care about future generations.
Because we want it now, and if possible then more.
Besides, Albert Camus is king!!!
And besides, cheap things cost less. 🙂
I would like to approach the article and the comments from a different realistic perspective:
Every 11-12-year-old when he makes important and right decisions in his eyes is 100% sure of the righteousness and wisdom of his actions. If a wise adult tells him that his way is wrong, he will not accept it and will continue to stick to his position (the mind of an 11-year-old will tell him that his way is right.
I guess scientists in 100-200 years (not more...)
Read the articles of today's scientists and they will nod their heads
And they will be treated like an adult to a child.
In terms of statistics and probability theory, I am convinced that there is
Only in our galaxy are thousands of life-bearing planets, some of them are hundreds and thousands of years ahead of us.
The mistake of those looking for signals and transmissions, stems from the fact that they assume that those transmissions are produced in frequencies or waves that are familiar to us. We may have been flooded with transmissions for hundreds of years, but the devices we built simply do not receive them.
My name is Hanan Sabat, and I manage (among other things) the website of the Israeli Center for UFO Research.
The "Galileo" system was sent a reasoned response to the above-mentioned article, denying every section and claim that appears in it.
Since I am convinced that the Galileo system would prefer to ignore my letter, if it is not published, then the letter and the reasons will be published on the website of the UFO Research Center (WWW.UFOISRAEL.ORG), and on the center's forum on MSN.
Best regards,
Hanan Sabat
hannan68@gmail.com
The problem with the Star Trek phenomenon is surfing
Her to different fields far beyond the TV series.
To her credit, there is no precedent for such a phenomenon in history
of the media.
It has spread to many regions as part of the American identity
And is like a kind of torch that carries the way in the journey
The future of space.
This is also evident among NASA scientists.
It is worth remembering that the future discoveries do not have to coincide
the holy saga.
For example, the discovery of super speed in 2060
Come on, there are more examples
There are many responses here and all of them are well reasoned and logical.. the problem with all of them is that we analyze the logic of the universe according to the tools we have now.. tools that with all due respect have only existed in space for what.. 100 years? If we ignore for a moment the distant leaps of Galileo and Copernicus.. until the last century we didn't know too much about anything.. we still fly space shuttles with Pentium 3 computers inside and with nothing more than a well-aimed missile...
Einstein stated that it is impossible to accelerate to the speed of light...sorry...it is impossible to have a journey where you accelerate to the speed of light in a reasonable time...
The same Einstein refused until the end of his life to believe in quantum theory because God does not play with dice according to him...
Without detracting from the wisdom and intelligence of one of humanity's geniuses, one should think and understand that the fact that we know the speed of light does not mean that there are not things beyond.. If there is anything that science fiction programs have proven recently, it is how much they are a creative inspiration for the reality that exists... in Star Trek they spoke in the early 90s About genetic engineering as if it is a science that will only exist in another 500 years.. well. In 2007 there are cloned animals and there were also humans if any country would allow it... the same goes for many other fields... there is a situation where there is such a thing about space.. or space jumping... or A way to create wormholes maybe between different points, maybe teleportation (a principle that exists according to quantum theory by the way).
who knows…
The only logical thing that is certain in the whole business is that we as an advanced culture... are really not progressing at a level that would interest a culture with such a capacity for travel beyond the level that we are interested in the safari in Africa because it is cool to see it...
So they shouldn't have any interest in making contact with us like we don't have a dialogue with a koala in a zoo..
Our problem as humans is to think that because we are the smartest here then it must also apply to the whole universe..in the style of if I didn't invent it..it doesn't exist..
The universe is huge..we still don't understand most of it...why should we understand something as simple as Star Trek?
Mr. Levy, don't be sure that there is no life in the discovered planets. You might say that there is no life there that transmits radio waves. Besides, anything is possible
Sabdarmish Yehuda
The answer to this may surprise many, but it can be
We are relatively a very advanced civilization in the region
Our galactic neighborhood (radius of 1000 light years)
It is worth remembering that science has so far discovered about 200 planets
around different suns and no life was found in any of them
Yossi Preminger
Maybe we have managed to transmit up to now to a distance of 100 light years...
But we can pick up signals, and I assume that if the aliens are more advanced than us, they scattered signals all over the galaxy, which means that we would probably be able to detect these signals...
Or on the other hand
They know about our existence, but because we are not at all advanced compared to them, and we do not pose any threat, there is no justification for communication between us...
But stop and think for a moment
Do you really think to yourself that life is going on in another planet right now? A more advanced and developed life than us?
It's pretty weird...
The selection of different responses to this article teaches something important about human intelligence: we are not good at reading comprehension, and we overestimate our knowledge.
Here's what you didn't understand:
Physicist Rasmus Björk does not deal at all with the question of whether there are aliens and the matter of evolution is irrelevant. Bjork chose to examine a specific question: how long it would take an advanced civilization to scan the galaxy.
For those who don't volunteer to take a one-way flight to the edge of the universe, I have good news: these are unmanned spacecraft. Except that in a very advanced civilization, creatures who live forever might think that going on a trip of millions of years isn't such a bad idea, especially if you feel like you've exhausted what there is to do on your planet.
Whoever says that we transmit a lot of signals and should have already responded to us, forgets that we have been transmitting for barely a hundred years, i.e. only those who live 100 light years away could hear us, and at such a distance our signals are very weak.
And for everyone who fills their comments with ideas about the magical imagination of the pre-realistic universe, stop swallowing pills you found on the street.
In my opinion, we are arrogant in thinking that the physics we have developed correctly describes the behavior of the universe.
Apparently we don't know much. We have just begun the journey to explore the near universe.
Physical principles that allow movement in the universe without regard at all to the speed limitations known to us are a reasonable assumption, given our basic ignorance.
Therefore, an encounter with another life is not an improbable thing.
The question asked - why would they want to contact us at all?
The universe is probably full of primitive life like ours. We are not a threat or a temptation. This diagnosis offsets the chance of an encounter.
Björk's article did not bring us anything new, everyone who analyzes the Drake formula reaches such conclusions. I should mention Hagai Netzer's book Thoughts on Reason, which analyzes the situation much better than Bjork. In fact, what is thought-provoking is mainly the ending of the article (Blizovsky's???)
In my opinion, there are two or three failures in the article. The first is the knowledge of the existence of a civilization, this can only be known at the speed of light so that only the creatures located at a distance of about a hundred light years from us are the first radio transmissions.
Second thing, is there really a desire to send living beings for a general search in the vastness of the galaxy?? Most likely, in the best case they will make some kind of drawing of creatures saying hello and send it to the vastness of space.
And the third and last thing, would any normal civilization be willing to risk and meet violent and fanatical productions like Homo sapiens? Or maybe they would prefer to be safe to destroy such a violent race??
On this optimistic note I conclude
Sabdarmish Yehuda
And if this whole issue of space searching for aliens is simply a limit that as much as we strive to reach it we actually create it.
For example, try to see it in the way that our brain is deceiving the eyes on purpose, we actually see things in front of us and can also feel them, but maybe in reality (not how the brain perceives them) they are different, and therefore we will not be able to arrive at an answer once and for all.
Because we are actually (in this case) "inventing" something that we perceive as realistic.
A scientific assumption that the galaxy is teeming with life is likely
But it can be to our disappointment that those lives exist
On Earth-like planets (which NASA is preparing
to be scrapped in the next decade)
But these are not intelligent creatures at all but
Primitive fortifications only
I say
Even if there is life in the universe
Surely there is the most intelligent way of life…
Maybe it's us…
Besides, this article is nonsense, who said we want them to come here? What about the connection between each other, we send signals all the time, I'm sure if you were an intelligent life form it would already be sending signals back...
In my opinion, what they haven't mentioned yet is that even though it's technically possible for those civilizations, it's really not certain that they would send such a delegation.
Let's say that here on Earth we were in the technological state described above (I also assume that in a few decades we will really reach it), how many people would you know who would be willing to join an expedition and spend the rest of their lives in a small spaceship (you are clear that this is not a mission that you also return from)? I think no one. It is unlikely that someone else would be more willing to volunteer.
In short, in my opinion, if there isn't some physical principle that we don't know that allows us to move at a speed greater than the speed of light, there is no chance that we will ever have contact with aliens.
Such an artificial pattern would indicate the existence of a civilization that is millions of years old while most scientists
Those involved in the subject aim to find a male planet in total
Atmospheric structure like ours
The key question is why artificial patterns in the structure of the universe and constellations of artificial stars cannot be seen.
And maybe they are still at the same evolutionary stage as Earth
Tens of millions of years ago when the living creatures
They are not intelligent at all
What is the probability that there is no life in the universe? The universe is so big. If life was created so easily on our planet, it is much easier for it to be created in other places with similar (and even different) conditions. And of course there are some. All that is needed is just a little magic - and there is plenty of it in the universe!!
An important parameter that was not mentioned and is important for evaluating the rate of scanning the galaxy, is how much time passes from the time a spacecraft is launched until it builds more spacecraft.
A similar scenario was described in the past (including space technology of 30 kilometers per second - which by the way is a speed we can develop with today's known technologies) and its conclusion was that the spaceships should have filled the entire galaxy a long time ago...