![]() "Breakthrough Listen captures huge volumes of data, and Akshay’s technique provides a new method to help us search that haystack for needles that could provide tantalizing evidence of advanced extraterrestrial life forms," Croft said. Though researchers did not find any telltale signs in their first search, they say that the speed of the algorithm will help improve searches in the future. The method uses an algorithm that can search through 1.5 million telescope data samples in 30 minutes. Using narrow bandwidths and repeated patterns would be a prime way for aliens to reveal themselves, as such a combination is extremely unlikely to occur naturally, study co-author Steve Croft, a project scientist with the Breakthrough Listen program, said in a separate statement. What's more, if intelligent aliens at the core of the Milky Way wanted to reach out to the rest of the galaxy, they could send signals sweeping across a wide array of planets, given their privileged position at the center of the galaxy. The researchers are listening in to the middle of the Milky Way because it is dense with stars and potentially habitable exoplanets. 'Leaking' cell phone towers could lead aliens straight to Earth, new study suggests Why have aliens never visited Earth? Scientists have a disturbing answer Aliens haven't contacted Earth because there's no sign of intelligence here, new answer to the Fermi paradox suggests The researchers then searched data from the Green Bank Telescope in West Virginia using the method. These frequency ranges are very small, at about a tenth of the width of frequencies used by a typical FM radio station. We explored the space of the two parameters up to a window of 600 ms and a polynomial order of 12. ![]() ![]() Researchers led by Cornell University graduate student Akshay Suresh developed software to detect these repetitive frequency patterns and tested it on known pulsars to be sure it could pick up the narrow frequencies. Scientists described the alien-hunting strategy in a new study, published May 30 in The Astronomical Journal. Because these pulses stand out against the background radio noise of space, they're an effective way of communicating across long distances - and an appealing target to listen for when searching for alien civilizations. Narrow-frequency pulses are naturally emitted by stars called pulsars, but they're also used deliberately by humans in technology such as radar. A new search for extraterrestrial life aims to find out by listening for radio pulses from the center of our galaxy.
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