Eight signals from distant stars found using the new method show promise in the search for real aliens. Using a new algorithm, scientists have obtained eight extraterrestrial signals that appear to bear the hallmark of the technology.
The research was published in the journal Nature Astronomy. Scientists don’t claim to have actually found evidence of aliens, but the study authors say that to use is a promising avenue for searching for extraterrestrial intelligence.
Radio telescopes scan the universe for signs of extraterrestrial intelligence.
Radio telescopes scan the universe for signs of extraterrestrial intelligence.
Cherry Ng, an astronomer at the University of Toronto, Canada, and co-author of the study, said: “I am impressed by the effectiveness of this approach in the search for extraterrestrial intelligence. With the help of artificial intelligence, I am optimistic that we will be able to better quantify the possibility of extraterrestrial signals from other civilizations. »
First, the researchers designed an algorithm to tell the difference between human-generated radio signals originating from Earth and radio signals originating elsewhere. (Radio are popular targets in the search for extraterrestrial intelligence, or SETI, because they can travel long distances in space).
The researchers tested different algorithms to minimize false positives. They analyzed 150 terabytes of data from the Green Bank Telescope in West Virginia, including observations of 820 near-Earth stars. They then discovered eight previously overlooked signals from five stars located between 30 and 90 light years from Earth.
Breakthrough Listen scientists say these signals have two characteristics in common with signals that could be produced by intelligent extraterrestrials.
“First of allthey are present when we look at the star and absent when we look away – unlike local interference, which is usually always present.Mondaythe signals change frequency over time in such a way that they appear far from the telescope”Steve Croft, Breakthrough Listen project scientist at the Green Bank Telescope, said in the release.
However, it is possible that these characteristics appeared by chance. And before making claims about distant extraterrestrial life, researchers will need to repeatedly observe similar signals.
The team hopes to apply its algorithm to data from powerful radio telescopes, such as MeerKAT in South Africa, which are planned for implementation in North America.
The principal investigator of this project said: “With our new technique, combined with the next generation of telescopes, we hope that machine learning can take us from searching for hundreds of stars to searching for millions.”.
Article source: Tien Phong
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Eight signals from distant stars found using the new method show promise in the search for real aliens. Thanks to new algorithms, researchers…
