They will investigate 100 potentially technological signals from space.

Humanity has always looked for signs of extraterrestrial civilization and these days an updated census of stars close to the solar system has been presented, those conducive to searching for life or to search for potentially habitable planets, obviously we are not going to inhabit them because we still do not have ships that can make the interstellar trip, but at least we will be finding the objectives so that our descendants in perhaps 100 years, 200 or 300 years can travel to them, perhaps not in that long time, think a little about how technologically we were two centuries ago, two centuries ago it was practically the end of the Napoleonic era and look how we are now in just 200 years.

The study was published on January 12 by Barkley University and is the result of 21 years of work from a SETI project in which a lot of amateurs from around the world have also participated. What they have done is reduce 12 billion signals, radio signals collected all those years. Suspicious signals, 12 billion signals to just 100 promising signals to be investigated by scientists at the University of California at Berkeley.

Those 100 radio signals, the aspiring ones, the suspicious ones, the ones that have the most votes, to be artificial signals from an extraterrestrial technological civilization, the project has always been focused on searching for radio signals because there are also other types of technosignatures, which is what all these signals, or data, or remains that can induce the presence of another technological civilization are called.

Radio signals would only be one of those technosignatures, there may be optical signals, laser signals would also be optical, there could be mega structures such as Dyson spheres, or space debris, as Avi Loeb speculated at the time, but this specific mission was looking for radio signals, of course that they are anomalous and that they can be explained to us by known natural processes, that they have characteristics that seem artificial, technological, that seem at the moment, these these 100 are within that, they are not explained by natural processes known, are anomalous and seem artificial and a technological product.

What we have to do now is analyze them in depth to be able to know precisely if they really are signals of extraterrestrial origin, technological signals and where they come from, this radio signals may not be communications as such, that the aliens would like to communicate with us or with each other, I highly doubt it, I highly doubt that an advanced civilization, and when I say advanced in the cosmos we can be talking about tens of thousands, hundreds of thousands or millions of years, uses radio signals, it would be like using drums or smoke signals.

Radio signals will surely be used by all technological civilizations at a given time, in a technological gap, but as soon as they discover something better to communicate through the cosmos, they will surely apply it. At the moment we have been using them for quite a while, but if there was something better, we would undoubtedly use it to communicate in the cosmos, because radio signals travel at the speed of light and a lot of energy is also needed to be able to send a radio signal to another star.

You cannot send an open radio signal like the signals from television programs or the signals from radio programs, those signals, the ones we normally emit, are to communicate here on Earth and they work very well, but in space you need large and powerful antennas to be able to send a signal to a spacecraft.

An example is the Maven spacecraft, we cannot communicate with it fundamentally because its antenna is not directed towards Earth, most likely it must be spinning around at this moment and is completely disoriented, any spacecraft that is on Mars or further away has to have an antenna of a curious size and be perfectly oriented to send its beam of messages towards Earth or receive messages from Earth, and even so, these types of signals could reach a couple of light years, perhaps to the next Centauri, but little more.

You need very powerful and very directed emissions. such as those sent from the Arecibo radio telescope, but this does not mean that technological civilizations do not send radio signals for some specific purposes. SETI believes that the most possible thing would be to locate a lighthouse or a beacon, a cosmic beacon or something that was constantly working, emitting a certain signal, to guide the ships of that civilization, if they travel in that star system or between other star systems that they have colonized.

Nature does not produce these types of stable missions, very different from those lighthouse or beacon signals that SETI is mainly looking for, because everything natural is broadband, broadcasts openly or has a lot of noise. An advanced civilization would put a lot of power in a narrow band, very focused. The messages that we have sent to the cosmos are very focused, not only are they very powerful, but they go in a very narrow beam.

The famous WoW signal detected on August 15, 1977 by the Birhard telescope at Ohio State University is the classic example of what SETI considers a possible radio beacon or interstellar beacon. The problem is that the only thing we have about that signal is that it is a paper record, there is no computer data, no sound, just a piece of paper.

Thank you for visiting my blog. If you like posts about #science, #planet, #politics, #rights #crypto, #traveling and discovering secrets and beauties of the #universe, feel free to Follow me as these are the topics I write about the most. Have a wonderful day and stay on this great platform :) :)

! The truth will set us free and science is the one that is closest to the truth!

---