Over the past 100 years, humanity has repeatedly attempted to contact alien civilizations that may exist in the vast expanses of space. However, official science has not yet reported receiving a response to earthly messages. Why is this happening and is it worth waiting for "hello" from other worlds?
A group of researchers from the Max Planck Institute for Solar System Research and Queens University in Belfast decided to conduct an in-depth study of the problem of "galactic silence" against the Earth. Currently, the main way to search for other exoplanets in the scientific world is transit photometry, or measuring the decrease in the brightness of a star as a planet passes in front of it and the Earth. Looking at this method from the other side, the researchers suddenly realized that there is a possibility that another intelligent civilization may well use a similar method.
During the experiments, scientists have identified a kind of transit area that is suitable for free observation of our planet and, accordingly, terrestrial specialists could easily observe space objects in response. Nine planets entered the zone convenient for "spying" the Earth, but cosmologists have established that they are not suitable for life. A little later, 10 more theoretically possible "observation sites" were discovered that could be inhabited.
One of the members of the research group, a graduate student from the University of Queens in Belfast, Robert Wells, said that the idea that we can also be observed in this way came to scientists unexpectedly and surprised them with its simplicity. He is convinced that the universe is too large to be desolate and uninhabited. Wells said there are also a number of reasons why aliens are in no hurry to come into contact with earthlings. For example, if our scientists have been searching for habitable planets for more than one decade and have not yet scientifically confirmed or discovered anything, then why should not an extraterrestrial civilization on another star also face similar difficulties. The graduate student also believes that even if life on Earth has already been discovered by "other" space explorers, then humanity can be considered hostile and simply feared.
This year marks the 67th anniversary of the interesting theory or "paradox" of the Nobel laureate in physics Ernesto Fermi. The so-called "paradox" of Fermi concerns the problem of why humanity has not yet discovered at least some intelligent life on other planets, because the Milky Way is huge and certainly inhabited in some territories, theoretically, only our galaxy should have at least 100,000 "Brothers in mind".
Studying the Fermi paradox, the scientific world has long been divided into four camps. Some are convinced that aliens simply do not exist and the Earth is a unique cradle of life. Other experts argue that representatives of other cosmic civilizations really cannot get in touch with the Earth, since they, like us, are hindered by the “Great Filter”, a theoretical barrier in the Universe that prevents a thorough exploration of the vastness of the Milky Way. There are those who are sure that aliens have previously visited Earth, but this was long before the appearance of humans.
Having discovered in the past the uninhabitedness of our planet, the alien guests decided to no longer try to look for someone here. Still others believe that it is thanks to aliens that the Earth is inhabited. Having created people and endowing them with certain knowledge, the humanoids simply retired to observe how humanity would develop without them. The adherents of the theory of paleocontact are sure that the “elder brothers in mind” will contact us themselves when the time comes, and by now the earthlings have not yet reached the required level of development.
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There are suggestions that in space there are some hostile "nationalities" of humanoids who are striving to seize alien planets and enslave their inhabitants. It is because of the fear of being captured or unwillingness to enter the war that the humanoids of other worlds remain silent, ignoring earthly signals.
While the “galactic silence” is on the air of the terrestrial locators, scientists argue whether it is worth making itself felt at all to the possible space community. The ardent opponents of radio communication with aliens is the physicist Stephen Hawking, in his lectures the scientist has repeatedly warned about the consequences of possible contact and asked cosmologists to "keep quiet" about the existence of the Earth. Even the famous American astronomer Carl Sagan, confident that any highly developed civilization cannot initially be hostile, said that before trying to "shout into the unknown," it is better to study this unknown.
American physicist Michiu Kaku puts forward his theory of alien silence. The scientist believes that even if other planets are inhabited by intelligent highly developed aliens, then humanity is too primitive for them. As an example, Kaku cites the "communication" between a man and an ant, although the latter has a group organization and a kind of "intelligence", it is unlikely that he notices a person and somehow thinks about it. A man, on the other hand, knows that ants exist, but having studied them, he simply does not pay attention to their colony.
Among the scientific luminaries there are those who believe that aliens will not make themselves felt, because they are simply afraid of human aggressiveness. If they have a plan to seize the Earth, then they will definitely not attack first, because they fear an immediate response to their actions.
However, in spite of the above arguments, scientists will not abandon their attempts to nevertheless find at least someone reasonable in space. Nobody has yet to say for sure what such "acquaintance" can lead to.
Irina Dneprova
