Officially speaking, we’ve not encounter aliens yet, despite millions of people around the globe being convinced that we are being visited, contacted and that there’s plenty of evidence to suggest so.
Despite this, scientists have tried making contact with aliens for decades, and we’ve developed state-of-the-art technologies to understand who else is out there.
Now, a recent scientific paper published in aRxiv suggests extraterrestrial life is out there, although finding it could be like searching for ‘a needle in a haystack’, warn scientists.
That’s according to a group of scientists from the Centre for Exoplanets and Habitable Worlds at Pennsylvania State University who have argued that we have not spotted any clues of alien organisms because simply put, we haven’t searched hard enough.
Scientists argue that the best way to find out whether or not we are alone in the universe sis to find technological traces of life, looking for radio beacons which produce radio transmission that is undoubtedly artificial in nature.
But our inability to find such signals has led to astronomers describing a ‘Great Silence’ or ‘Eerie Silence’ gripping our universe. There should be chatter all over the place, although we haven’t found conclusive evidence of it.
However, our inability to find signals or traces of alien life does not necessarily mean there aren’t any intelligent lifeforms out there.
The recent study explains that “The term “silence” in these expressions is sometimes interpreted to mean that we have established that there are no obvious radio or other communicative signals to be found in space [and claim] that we have conducted a thorough search for signals, and concluded that there are very few or none of them.”
“But this is not the case. Despite the passage of nearly 60 years since the first radio SETI searches, very little actual searching has been done compared to the amount needed to rule out the presence of even a large number of “loud” beacons,” wrote experts.
Experts added how “Quantifying the amount of searching that has been done should help to dispel this misconception. Tarter et al. (2010), for instance, has estimated that ruling out the existence of radio beacons based on the amount of searching to date is akin to basing one’s opinion on the existence of marine life on dipping a single drinking glass into the ocean and seeing if it contains a fish.”
Scientists have come up with a mathematical model creating a ‘Cosmic Haystack’ within which so-called alien ‘needles’ can be detected. Based on their calculations, researchers have suggested that we have barely started searching this ‘cosmic haystack’, and we are in no position to rule out the existence of alien life in the universe.
“Our current search completeness is extremely low, akin to having searched something like a large hot tub or small swimming pool’s worth of water out of all of Earth’s oceans,” the experts concluded.
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