The big question about whether we are alone in the universe continues to intrigue astronomers. Until the end of this century, humanity did not know of the existence of exoplanets nor did it possess the appropriate technology to decipher radio emissions of unknown origin that travel through space. However, over the years, more alternatives for the search for extraterrestrial intelligent life (ETI) have been proposed.
Now, new research suggests that the Wolf 359 star system, located 7.9 light years from planet Earth, would be the ideal place to look for “possible interstellar communications from an alien probe,” according to Universe Today. The article was published in a preliminary version.
The red dwarf Wolf 359 is the fifth closest star to the Sun after Alpha Centauri, Barnard’s star, Luhman 16, and WISE 0855-0714.
The belief that there may be other intelligent beings in the Universe is based on the fact that the life span of our galaxy (13.510 million years) is much higher than that of our planet (4.5 billion years ago) and others detected. For scientists. That period may be enough for the development of this type of life.
The authors, Michaël Gillon and Artem Burdanov, were based on a 2014 article that posits the theory that the ETI has established self-replicating probes that make up a network of contacts in the Milky Way and the main agent of this network would be its stars. According to the hypothesis, If intelligent beings existed on another side of the Universe, they could be taking advantage of the stars as gravitational lenses to enhance the speed of your messages.
According to Einstein’s theory of relativity, the gravitational force of very massive bodies like the Sun can distort light so it could function as a telescope within the gravitational lens field, at 550 astronomical units.
Although at that distance any communication device would be very difficult to detect, Wolf 359 has a peculiarity: it is located within the gravitational line of the Sun.
This distant star is located in the orbital plane of the Earth, so it can be seen from the Earth, and vice versa. According to Gillon, the alignment between the two, happened once a year, would allow the possible emission of an alien probe to be detected from Earth.
Although to date, after contrasting the data collected from different telescopes, it has not been possible to observe a probe that matches the one they expect, they argue that more recurrent attention should be paid to this star.