Are we sharing our home galaxy with other malicious Alien civilizations? The Milky Way Galaxy is one of the spiral galaxies that houses billions of stars, planets, black holes, moons, asteroids, and other cosmic objects.
It spread over 25,000 light years in diameter to accommodate its billions of cosmic objects. Astronomers have conducted several telescopic observations, studying the Milky Way galaxy and its objects.
The study was conducted to determine if we occupy this universe alone. Our scientists derived their inspiration to solve our curiosity. The team commences with this hoping to receive a signal someday from another civilization. In 1977, researchers deployed the Big Ear Radio Telescope to spot a strange narrowband signal reaching us from outside the solar system.
The signal’s powerful intensity and frequency made scientists suggest that it has features of possible extraterrestrial transmission. Astronomers named this spotted continuous radio wave the Wow! Signal.
After detecting the radio wave, astronomers tried to spot its source again and failed. The researchers became curious about the source of the powerful signal in the first place.
To investigate further into the original source of the signal, Alberto Caballero, an amateur astronomer published several papers analyzing new insights into the Wow! Signal detected in 1977.
What Alberto Caballero discovered About Hostile Alien Civilizations
Alberto Caballero published his first paper explaining how he studied nearby Sun-like stars to find the possible source of the signal. In his second publication, he analyzed the possibility of hostile extraterrestrial civilizations existing within the Milky Way Galaxy and their chances of invading Earth.
Despite not being an astrophysicist, Caballero focused on studying the popular Wow! Signal to determine a unique sign of extraterrestrial life.
Caballero explained in the study, describing the possible hostility of extraterrestrials using the idea that humans might likely attack a nearby spotted civilization.
Caballero analyzed the hostile nature of alien civilizations across the Universe via a relatable approach. He started the study by calculating the bigger countries that have attacked other smaller countries for more than a century between 1915 and 2022.
From his estimation, he found out that about 51 countries have carried out all sorts of invasions within that period. Caballero also double-checked each country’s ability to conduct an invasion based on its global military expenditure.
Caballero concluded with a term he described as the recent human probability of invasion of an extraterrestrial civilization. He arrived at the conclusion by dividing each country’s probability of carrying an invasion by the sum of all countries on Earth.
His model proposed that the recent odds that humans will be invaded by another Alien planet are 0.028%. However, Caballero noted this model based on the most recent level of human civilization and technological advancement.
What happens when humans commenced with Interstellar travel?
Since humans have yet to advance technologically enough to start interstellar travel, our chances of being invaded by another occupied exoplanet are small. Caballero’s model also estimates that if the recent rates of technological advancement remain the same for a while, then humans will never go interstellar for the next 259 years.
As human civilization continues to advance, we will get to the future when interstellar travel will become possible. As for when humans will go interstellar, Caballero concluded his studies using the Kardashev scale. This scale is used to determine the technological growth of a civilization based on the amount of energy it is consuming.
Caballero’s study suggests that if human invasions continue to reduce at the same rate it has reduced in the last 50 years to about minus 1.15% per year, then the chances of humans attacking an exoplanet when they migrate to the level of a Type 1 civilization (about 259 years into the future) will reduce to 0.0014%.
However, these numbers might appear to be small chances. But if you multiply it by millions of possible habitable exoplanets orbiting in the habitable zones of their stars in the Milky Way, then you will realize its gigantic size. Caballero used a study published in Mathematical SETI in 2012 to conclude his research.
How many Advance Alien Civilizations Could be living Within the Milky Way Galaxy?
Scientists predict that there might be about 15,785 alien civilizations that could theoretically exist in the Milky Way in this 2012 paper. Caballero concluded that any of these civilizations that are yet to become a Type 1, about 0.22 would be completely hostile towards the human race when they make the first contact.
During an interview with Vice News, Caballero revealed that the number of hostile neighbors increased to 4.42 when he analyzed the number of alien civilizations with similar technological capabilities to modern humans who are yet to start interstellar travel.
In conclusion, more advanced technologies will enable us to make more fascinating discoveries about alien civilizations that shares this part of the Universe with us.
