Jika Alien menyerang Bumi, Mampukah Manusia Mengatasinya ?

In fact, many people have imagined that maybe one day in the future, when an extraterrestrial creature or more commonly known as a mysterious alien suddenly appears, the human race will face the end of the world. The alien will occupy the earth and control the human race. Certainly, the possibility of the appearance of the alien cannot be ignored, but the conditions are relatively extreme. First, our limitations to the universe. Our universe is too wide. Perhaps in the corners of this vast universe, there is a great possibility to find this mysterious creature almost zero, unless the alien has a clear coordinate on earth, if not, not a single person can find a grain of sand in the ocean. Then from the level of civilization, many say it is not entirely possible that there is a smart form of life in this vast universe. But life and civilization are two different things. An alien that can find and fly to earth like that, at least has a civilization of more than two levels. However, although the second level civilization can cross between star systems, but because there are many stars in the universe, so they have to go through their galaxy before taking the next step. So technically, an alien that can find the earth and humans in the universe is at least a third-level civilization. A civilization like this can already control the galaxy where they are and travel around it. In addition, they also have the technology and resources to cross between distant stars. But even so, it is unlikely for them to be able to find humans, unless they can catch several spacecraft launched by humans and then land on earth according to the direction of the spacecraft. Of course, there is still another possibility, that is, they live in a galaxy just like us humans and not far from us. For example, Proxima Centauri or the red star that is 4.2 light years away from the earth. The red star is the closest star to us. If there is a second-level outer space civilization on the red star, then they are very likely to find the earth where we live. One last point, that is, why do aliens want to occupy the earth and control humans? What is the purpose? Maybe someone said for the sake of resources. However, a solar system that is only that big may only be enough to be used by humans. But for a super civilization that can travel between dimensions, it may not be interesting. So even though aliens find the earth too, it may be a coincidence. The main purpose is to explore the universe. Whether the aliens will occupy the earth is difficult to determine. If they come with a good intention, then we don't have to worry. On the contrary, if it has a bad intention, then we can't just stay silent or helpless. A recent study claims that smart aliens will only be interested in connecting the most advanced technology planets. The earth is not successful in this regard because it may be considered uninteresting or not smart enough for aliens. An article published in the Archive database shows that smart aliens may not find planets that are very interesting to live on. If life has evolved on many planets in the galaxy, then aliens may be more interested in planets that not only have biological signs but also technology. Amri Wandel, an astrophysicist at the Hebrew University of Jerusalem, said. This study explores the Fermi paradox, which argues that given the age of the universe, it is likely that smart aliens will develop space travel far away now. And thus, it is very likely that they will visit the earth. The fact that they have not yet as far as we know to connect may be proof that there is no other life in the galaxy. But experts have given other explanations related to the mystery of the existence of aliens. Perhaps they have visited the earth in the past before humans evolved or were able to record the visit. Or maybe space travel far away is more difficult than we believe. Could aliens have developed advanced civilization that is too new to reach the earth? Another possibility is that they deliberately decided not to explore the cosmos. They may even have disappeared. In that new article, Wandel offers another explanation. That life is actually very common in the universe. If there are many rocky planets orbiting the star-like zone of life, aliens may not waste their resources. To send signals to each planet, they may try to communicate with algae or amoeba aliens. The proof of life on earth so far has not yet been found, although we are clearly looking for it. Whatever we find in the near future, it is likely to be signs of microbial life that once existed on Mars, not in the form of humans as depicted in movies. But according to Andrak's summary, there is a statistical chance that a smart alien is somewhere. Even if the stars must be parallel so that we can communicate with each other, considering how wide our galaxy is and how far the distance between the planets. Finding life or making contact with aliens is very unlikely. Until one day we can really do it. Said John Zemecki, Professor Emeritus of Interdisciplinary Studies at the Open University of England. This reminds me of exoplanets. As young researchers, that's the topic we're talking about. We all suspect that exoplanets are outside the solar system. But we can't find it because technically it's too difficult. We now know that exoplanets are really outside the solar system. Some even have the potential to become living candidates because they have water sources. With the search that is still ongoing for alien life and the possibilities that are still left for us to find, it is not wrong to consider how we react if we can really contact them. Especially considering the smart alien species, the possibilities will be very different from humans. In 1999, journalist Leslie Kinn published a French document about UFOs that showed generals and scientists that unexplained phenomena have the potential to be signs of extraterrestrial life. In 2022, for the first time in several decades, the US Congress openly debated what should be done to these mysterious flying objects even though there is no evidence that they came from outside the earth. If life is something common in our galaxy, a smart alien is likely to be more interested in technological signs. But technological signals may be difficult to detect. The earth only emits signals that can be detected from outer space in the form of radio waves since the 1930s. In theory, these signals have now reached about 15,000 stars and planets orbiting it. But that is only a small part of the 400 billion stars in the universe. Further on, Wandel wrote, it takes time for each message from an alien to make a return journey. So it's only stars within a distance of 50 light years that have time to respond since the earth began to orbit outside the planet. Worse still, the radio signals on earth are not deliberately broadcast into outer space so it is very likely to be disturbed after about a year of light so that the alien cannot distinguish it. According to the researcher, humans must be prepared if the alien is proven to exist. So far, the pursuit to prove the existence of aliens has not yielded any real results. However, if at some point it is proven that there is an alien, humans are expected not to be surprised. In fact, scientists are seriously preparing humans to face the reality that aliens exist. A new research center was formed at the University of St. Andrews, Scotland for that purpose. Will we ever get a message from an alien? We don't know, said John Elliott, the laboratory coordinator. The purpose of the facility named SETI, Post Detection Hub, is to coordinate multidisciplinary efforts to develop protocols, procedures, and agreements to ensure that humans will be held accountable if at any time there is evidence or contact with an alien. That's because there will definitely be shock or even fear if there is contact with an alien. Currently, aliens are still being hunted. NASA's international investigation agency is certainly the main perpetrator, with a large budget from the US government. In 2018, NASA launched the Transat Exoplanet Server Satellite, TESS, with one of its main missions to hunt aliens. During its observations, it will focus on finding new planets among the 200,000 stars in the sky, with an estimate of 1,600 exoplanets some of which are the size of the Earth. Is it because the Earth is too small that aliens can't find us? In a normal situation, whether it's an alien or an earthling, they both find other planets through light. Therefore, the most common find is a star, a shining star. But the planet itself does not emit light, making it difficult to find. Another method is needed to determine its existence. For example, observing the change in the luminosity or brightness of a star. Because from the movement of planets to observation between stars, and observation will affect the change in the luminosity of stars. The star's distance is very far from us, while the intensity of the light emitted by the star is compared to the square of the distance. You can imagine for a moment how difficult it is for us to find stars in interstellar space, especially planets. The question is, is it because the Earth is too small that it is difficult for aliens to find us? Given the vastness of the universe, there is no planet that is considered a big planet. Although there is, if it does not have certain technological capabilities, it is impossible to know whether there are humans or other lives in it. If we have to answer this question, then the following points are just for reference. 1. Are there aliens or not? At the moment we do not know for sure. 2. If aliens do not exist, then there is no question of whether humans will be found on Earth. 3. If aliens exist and are in a relatively primitive stage of development, then they have no ability to find us at all. 4. If aliens exist and are at a development stage similar to ours, then just like we are trying to find aliens that have not been found until now, then they have not yet found our existence. 5. If aliens exist and are at a development stage far beyond our civilization, then they may have found us, but did not send a signal to us, or we cannot receive and interpret the signals they send. So we don't know if they have found us. The size of something is relative. If you think the Earth is small, then we can see the concept in the science fiction film Man in Black. The galaxy is just a small leontine, and the universe is nothing more than a cliff. This has nothing to do directly with the size of the Earth. The secret of the star Sirius is quite big, isn't it? But it is difficult to find if it comes out of the galaxy of Bimasakti. Why? 1. The universe is indeed too big, so that today's advanced technology cannot find its end. In this vast and unlimited space, it also contains countless galaxies and matter. Although the Earth inside it can also be said to be no more than a small piece of dust, although the civilization of aliens is much more advanced than the civilization of humans. However, to find the Earth in this short time is just as difficult as finding a needle in a haystack. 2. The value of resources on Earth is not worth being explored by alien civilizations. What we consider very important may not be important at all to them. For example, oxygen, water, rare metals, and the like. Because the structure of life and civilization of alien technology may not be the same as ours, they may not necessarily have blood and flesh like us, they may not necessarily need oxygen like us, they may not necessarily have to eat three times a day like us, maybe their technology is not at the level we can achieve. Our most advanced fighter jets may not even be more than toys in front of them. If the above two points are true, then why did they go to Earth? That's all for our topic today. 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