We search for extra-terrestrials in space by blasting infrared messages or sending probe satellites, but what if they are also watching us and observing major landmarks across the Earth from thousands of light years away? According to a new study, it is possible.
Aliens are watching us and are snooping on major landmarks across the Earth while using their ultra-advanced telescopes, a new study has claimed. But there is one catch: They are not observing us in real-time. Instead, there could be a delay of at least 3,000 years due to the time that light takes to travel across space.
So, most probably, aliens are able to pick out buildings and structures built on Earth during the times of the Romans, Greeks, Indians and Egyptians.
Can Alien Civilizations Detect Humanity?
The peer-reviewed paper is published in the March 2024 edition of Acta Astronautica, titled “Are we visible to advanced alien civilizations?” According to author ZN Osmanov, a Research Affiliate at the Search for Extra-terrestrial Intelligence (SETI) institute, the maximum distance for potential detection of activities on Earth by an extra-terrestrial civilisation is 3000 light-years, an estimate calculated on the basis of the laws of Physics.
It means that aliens could use huge and advanced telescopes to snoop on our major landmarks of the past. The study aimed to determine our detectability by categorising alien civilisations based on their technological advancements.
These classifications are based on the capability of the alien societies to harness the energy of their local star. The proposed categories are as follows: Type-I consumes all the energy incident on a planet from its star; Type-II utilises the total energy of the star; and Type-III is an advanced society that consumes the entire galactic energy.
Why Have Aliens Never Visited Earth?
There have been various claims on the internet regarding the existence of aliens. Are aliens real? We don’t know for sure, but we want to believe. Outer space is a vast expanse that we have so much more to learn about, which is why it’s hard to flat-out deny the possibility that other intelligent life forms exist.
If life can exist—and persist—in seclusion, and in some of the harshest conditions on Earth, it’s likely that other interplanetary life forms have evolved and acclimated to conditions in space, too
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