As claimed, they tend to zero
Yesterday in 18:01, Views: 4916
The probability that earthlings will one day receive a signal from aliens is extremely low, and even if this happens, it is unlikely that the extraterrestrial civilization that sent the message will exist at that time. This conclusion was made by specialists from the United States.
photo: frame from c / f
Scientists have suggested that hardly any civilization of extraterrestrials could exist for more than one hundred thousand years. At the same time, it is unlikely that radio signals will take less time to overcome the distance to the Earth. Thus, even if the Milky Way is indeed filled with extraterrestrial radio signals, experts assume that they will reach the Earth much later than there are no creatures at the point of departure who are ready to receive an answer.
The solar system is located about 26,000 light-years from the center of the galaxy, and for 80 years since the advent of broadcasting, the first signals covered less than a thousandth of a percent of the space occupied by the galaxy.
At the same time, experts suggest that the number of alien signals that the Earth receives at each moment of time must correspond to the number of civilizations capable of sending such signals, even if they can already be other aliens. According to scientists, in the next work they will wonder how, in this regard, to understand the absence of any extraterrestrial signals recorded to date.
One of the authors of the study was Frank Drake, the author of the famous “formula”, named after him. The Drake equation is predestined to determine the number of extraterrestrial civilizations in the Galaxy, with which humanity has a chance to come into contact. It includes such indicators as the number of stars formed per year in our galaxy, the proportion of stars with planets, the percentage of planets suitable for life, the probability of occurrence of living organisms on them, and so on. It is worth noting that the specific values of some of these variables can be guessed by humanity.