How will we communicate with aliens?

The search for extraterrestrial civilization was carried out long ago by SETI. But more than half a century has passed, we have not received anything but silence.

The Institute for Searching for Extraterrestrial Civilizations (SETI) began work in 1984. Sixty years earlier, on August 21, 1924, the US government launched a silent day whereby people were loved. pray for silence for 5 minutes every hour of that day, so astronomers can listen to radio signals coming from Mars.

Mars is the closest of the targets chosen by astronomers to listen to the signal, but they still can't hear anything from this red planet.

Silence causes great frustration for those who desire to hunt aliens, but hope is still there. Our Milky Way is a very large place, and considering the size of the universe, we will not have any rest if we search all that space.

So, all our efforts will be rewarded. We will encounter creatures other than Earth someday in the future, and that is when two inter-cosmic civilizations began to interact. And what language will we use to communicate with them?

The Allen telescope chain of the SETI Institute is listening to radio signals coming from space.(Photo: SETI Institute).

First of all, unless we meet face to face, the conversation will take a lot of time. Because the distance from the Earth to the nearest star - how Proxima Centauri - is also more than 4 light years away, means that the message if traveling at the speed of light will take more than 4 years to get back and forth between us and the star. there.

Most scientists, including astrophysicist Carl Sagan, agree that mathematics will be the basis for conversations with other civilizations outside the globe . With this idea, British scientist Lancelot Thomas Hogben created a language called Astraglossa .

Transmitted via radio signals, short pulses are dashes that represent numbers, and longer pulses are apostrophes representing calculations such as addition or subtraction. When these basics of mathematics have been laid out between two civilizations, we will come to conversations.

Of course, Earth people and people on some other planet will only talk about astronomy. This is clearly the most obvious common point between us, because both live in the same universe. Just like two Earth people will talk to each other with questions about the weather.

And it is also certain that there is no guarantee that these remote creatures will understand our mathematical language. Astraglossa language is very meaningful for Hogben and other scientists, but there is no certainty that aliens will understand.

'Very high possibility is that extraterrestrial creatures will not understand our languages. Around the world there are about 7,000 languages, but only about 50% of them have their own writing system. We also have no guarantee that the language of the aliens is written in writing , "said SI Shostak, an astronomer from SETI.

Instead of being engrossed in dreaming about the common language, Wells-Jensen scientist suggested that we should talk less and share more.'In addition to the text, let's also send more audio recordings of life sounds on Earth and images of the globe, ' he said.

In March 2015, astronomer Shostak got the idea, that we should transmit all the content available on the internet.'It's a huge collection of text, images, video and audio - will allow aliens to know a lot about human society and ask us questions.'

'All data on the internet is a huge piece of information, but we can still compress them. A high-powered laser transmitter will deliver content in just a few days, as we do with magnetic optical fiber , 'he said.

If this is successful, we will have a very high chance to create meaningful conversations. Even if it doesn't work, then at least these remote creatures will know about the existence of our life-filled planet Earth.