Space Signals and Extraterrestrial Civilizations

Since ancient times, the heavenly bodies floating around in the ether have been a  subject of interest to mathematicians, astronomers, astrologers, etc., for purposes relating to  mathematics, science, and religion. Occasionally, one might come across generations-old  folktales of how the world might come to an end due to invasion by outer-world creatures or  the Sun swallowing the Earth. These instances reflect, directly or otherwise, the fascination of  mankind for the universe and its uncovered secrets, and the fear of the unknown. 

The advancement in space technology and the expansion of humankind’s knowledge  about the universe has led us to become more and more curious as to what lies beyond the  blue skies and fluffy white clouds. Various major milestones have been achieved by the  astronomical fraternity since the successful launch of Sputnik-1 (the first artificial Earth  satellite) by the erstwhile USSR on 4th October 1957. We have successfully sent astronauts  to space and made numerous Moon landings in the latter half of the 1900s. Further innovation  in space tech has enabled us to send unmanned spacecrafts to the Moon, Venus, and Mars, among other celestial bodies, and gather valuable samples and data that have helped us  deepen our understanding of the similarities between these celestial bodies and the Earth,  and whether life could thrive on them. This gives rise to various speculations about the existence of aliens and extraterrestrial civilizations other than our own.

The National Academy of Sciences has said that contact with other civilizations “is no longer something beyond our dreams but a natural event in the history of mankind that will  perhaps occur in the lifetime of many of us.” It is said that there could be a possibility that these extraterrestrial civilizations have tried to establish contact with us, just like we are trying  to get in touch with them.

Just like how we are awaiting their response to the signals we have  sent out to establish communication with them, they might be waiting for us to respond to their  messages. In 1962, a Morse code was aimed at Venus by Soviet astronomers that read: Mir  (meaning: peace or world), Lenin, and SSSR (meaning: Soviet Union). This was a rather symbolic incident in the history of space exploration. 

Space Signals and Extraterrestrial Civilizations
Source - India Today

A NASA-funded study into the Search for Intelligent Extraterrestrial Life (SETI) brought  forward the possibility that our first contact with aliens could be with a civilization more  technologically-advanced than ours. This could be attributed to the fact that we are yet to  invent instruments that would be sensitive enough to detect signals from a planet that is as  technologically-developed as us, if not less. 

Another thing worth mentioning while we are talking about extraterrestrial civilizations  is the controversy surrounding UFOs (Unidentified Flying Objects). In 1947, Kenneth Arnold,  an American aviator and businessman claimed to have sighted 9 objects flying in a ‘V’  formation at an estimated speed of 2700 kilometers per hour while flying near Mount Rainier  in the State of Washington while looking for a transport plane that had gone missing in the  area on 24th June. He likened their movements to ‘saucers skipping on water’. This claim hit  the media like a thunderstorm and these mysterious flying objects were named as ‘Flying  Saucers’ by the media at the time. Soon, this unusual claim was incorporated into theatre and  entertainment, eventually growing into the question: does life exist outside the Earth, and are  these ‘flying saucers’ sent to us by them?

Space Signals and Extraterrestrial Civilizations
Source – unknown

Several scientists have tried to answer our questions revolving around extraterrestrial  life and UFOs and other habitable celestial bodies in the universe. The universe is expansive, and it appears unlikely that we humans have got it all to ourselves. The existence of aliens  has been sensationalized by the entertainment industry – some depicting them as benevolent beings trying to cooperate with humankind to establish intergalactic peace and brotherhood,  while others depicting them as cruel creatures willing to dominate the universe by invading  other planets. This has caused many of us, if not all, to form an opinion about these puzzling creatures.

Space Signals and Extraterrestrial Civilizations
Source - ABC News

Intriguingly, a rare – in over 50 years- public congressional hearing was held in May  2022 in the US concerning inexplicable sightings recorded by the US military where some Unexplained Aerial Phenomena (UAPs) i.e., UFOs in the military terms, apparently moved  sans any discernible means of propulsion! 

Public fascination concerning extra-terrestrial beings, flying saucers, glowing lights and  otherworldly aircrafts remains unceasing. Hopefully, further advancements in science and  space technology would bring us answers to our curiosity. What remains to be seen is what  would be the consequences of the knowledge that we may gain, and whether they are for the benefit, or the doom of humankind.

Written by Sana Gilani 

Edited by Akanksha Choudhary 

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