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Scientists at the 2018 Sonar Festival in Spain have sent a message to a nearby star system, known as GJ 273 which is 12 lightyears from Earth, and if an intelligent race is there, they will hopefully reply.
Two planets are thought to be in the habitable zone – the area around a star which is neither too warm nor too cold to support life – around the red dwarf star GJ 273.
As the star is 12 lightyears away, the signal will reach the planets in about 12 years.
Theoretically if there are intelligent extraterrestrials there, they will beam a message back which would take the same amount of time to return.
Festival director Richard Robles said: “Sonar Calling GJ273b arises from the innate human need to communicate and connect.
“It also attempts to find an answer to a question asked by civilisations throughout history: are we alone in the universe?
“Given the largely negative impact of humanity on our planet, perhaps this is the best time to reach out to hopefully superior extraterrestrial intelligence to solicit help and advice.”
Douglas Vakoch, president of Messaging Extraterrestrial Intelligence (METI) which sent the communication, told Space.com: “To me, the big success of the project will come if, 25 years from now, there’s someone who remembers to look for a response.
“If we could accomplish that, that would be a radical shift of perspective.”
However, the likes of Stephen Hawking have previously warned it could be a bad idea to message intelligent aliens.
Professor Hawking said it would be best to keep quiet on discoveries judging by what has happened when humans have met other humans who they deem inferior.
The theoretical physicist said: “One day we might receive a signal from a planet like Gliese 832c, but we should be wary of answering back.
“Meeting an advanced civilisation could be like Native Americans encountering Columbus.
“That didn’t turn out so well.”