60 million stars and one nine aliens have been identified

The galactic center's visual space is a region of space with lots of stars, superheated gas clouds, neutron stars, white dwarfs, and a supermassive blackhole parked at the base.

The galactic center’s visual space is a region of space with lots of stars, superheated gas clouds, neutron stars, white dwarfs, and a supermassive blackhole parked at the base.
Fig: X-ray: NASA / Sixty / UMAS / D. Wang and so on. Radio: NRF / Saro / Mirkat

AStrobiologists from the Breakthrough Listening Project released preliminary results of an STI survey where the team hunted for a radio signal along a line. Of The vision extends towards that Galactic center

The search for outdoor radio signals is now in its seventies, and we have yet to find any intelligent life. We must continue to search, although there is no greater unsolved scientific mystery than the question of whether we live alone in the universe.

External intelligence or STI searches are currently limited to presumed searches Alien technologistIngs like optical and microwave signals And evidence of megastructure. That said, radio signals continue to be the most popular STI target, because whether the leaks of these radio signals are intentional or accidental, centralized radio emissions could indicate the presence of an alien civilization.

The million 100 million breakthrough listening project, a 10-year initiative founded six years ago by Israeli-Russian billionaire Yuri Milner and the late physicist Stephen Hawking, explores the depths of space for signs of radio signals, still continuing. By Alien

For the latest survey, a breakthrough listening team based on the STI Research Center at the University of California, Berkeley, used the Green Bank Radio Telescope. Parks Radio Telescope in West Virginia and CSIRO in Australia About 600 hours to collect radio observations. Their latest effort was unique in that it was the Galactic Center’s “most sensitive and deeply targeted STI” survey, as STI scientists wrote in a survey published in the Astronomical Journal (a Preprint Currently available at RXive).

Looking for aliens along a line to see Which extends from Earth to the supermassive blackhole at the center of the Milky Way with advantages and disadvantages.

The advantage is that the density of the stars increases with the distance to the galactic center. Accordingly, this approach “offers the maximum number of possible habitable systems in any part of the sky,” according to the survey. What’s more, relatively close The proximity of these stars to each other could “accelerate the development of interstate communication and travel” which STI scientists wrote in their research paper may have contributed to the emergence of “advanced space-extraterrestrial societies”.

Difficulty Things are a bit hairy beyond a certain point. Like the solar system, the Milky Way has its own habitable zone, beyond which life cannot escape. In fact, the interior of our galaxy (such as the region outside the galactic habitat) is a high-Radiation environment Clouds of gas filled with gamma rays, exploding overflows and reaching millions of degrees. The Hulling supermassive black hole in the galactic core presents a completely different danger.

Nevertheless, the authors of the new study, led by a giant carrot from the Department of Astronomy at Berkeley, have decided that it would be worthwhile to focus on an extensive search near the Galactic Center because of the absolute abundance of stars from here. As scientists noted in their study, “We estimate that we surveyed about one million million stars.”

Interestingly, the team was not looking for accidental radio leaks, but periodic radio transients coming from fictional beacons (in other words, regularly repeating radio bars from machines designed to catch our attention). According to scientists, the Galactic Center “provides an ideal” central location for the development of a powerful transmitter for efficiently transmitting beacons across the Milky Way to advanced civilizations, which is another advantage of this strategy.

Gajjar and his colleagues 0. and removed the frequency from and 93 GHz. The results of the initial report were limited in frequency between 1 and 10 8 GHz And at intervals of 7 hours (observed by Parks) and 11.2 hours (as observed by Green) Bay Telescope). None of these parameters have a repeat radio burst consistent with an alien beacon.

No extrinsic intelligence could be detected, but scientists managed to capture transient events consistent with magnets, which would be of interest to astronomers studying such neutron stars. And again this is the initial report, so we are eagerly awaiting the next result.

Back in 2019, the same team came in very short time later Analysis Nearly 1,372 they searched our conscience but we found no evidence of alien life. It’s hard not to get frustrated about the whole STI effort, but there’s something we need to keep in mind: The search for intelligent alien life has just begun.

More: An ambitious search for aliens is short – so astronomers are thinking bigger.

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