The adventurous world sends more messages to aliens

Transmitting radio messages are sent to neighboring star systems, despite the risk of being invaded by aliens.

Astronomers in October sent a radio signal to a neighboring star system, one of the closest star systems that could contain the planet in accordance with life, according to New Scientist. If aliens live there, we can get a reply in less than 25 years.

Star system illustration GJ 273. (Photo: NASA).

The target of receiving the message is the star GJ 273 , also known as Luyten star , a red dwarf star in the northern constellation Canis Minor, which is only 12 light-years away from the solar system. In March this year, researchers discovered GJ 273 had two planets . A planet in which GJ 273b has an orbit in the region that is suitable for life from the host star, may contain liquid water that allows life to exist.

The message to the star was sent to the "Arecibo message" , radio signals transmitted from the Arecibo telescope in Puerto Rico to a distant star cluster in 1974. The message Arecibo contains information about the actions In the solar system, the DNA structure, the human form draws animation and other basic information about the Earth and its inhabitants.

The new message came from a Norwegian antenna for more than 8 hours, interrupting three days in October. The message content is simpler and easier to understand, according to Douglas Vakoch, director of Messaging Extraterrestrial Intelligence International (METI ). It begins with information about arithmetic, arithmetic, geometry and trigonometry, a description of radio waves that carry messages as well as instructions on watches. Researchers want to know if residents of GJ 273b understand the concept of time like us.

The idea of ​​sending messages to aliens in the star system GJ 273. (Video: New Scientist).

The idea of ​​sending intentional messages into the universe is always controversial. Many scholars expressed concern about the potential danger of finding ways to approach aliens.

Physicist Stephen Hawking warned of the consequences if humans encountered alien civilization. They will definitely last longer and have far more advanced technology than humans.

"98% of astronomers and scientists at the Institute of Alien Intelligence (SETI) include me, thinking that sending a message to another world can be very dangerous and not a good idea. It's like shouting into the forest before you know whether there are tigers, lions, bears and other dangerous animals there, " said Dan Werthimer, a researcher at SETI Institute at the University of California, Berkeley.