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SETI Expands the Search for Alien Signals — Have We Been Listening to the Wrong Radio Channel?

Researchers are reexamining ALMA archival data for narrow-band technosignatures that could reveal directed transmissions, leakage or relic signals from extinct civilizations.

Discover why we focused on one small slice of the radio spectrum for decades and how new technology and strategies are expanding the search.

5 Articles

For half a century, astronomers have been scrutinizing the universe in a specific band. SETI researchers are now moving away from the "water hole". A new method proposes to explore unprecedented frequencies. Scientists are examining the old archives of radiotelescopes. They are tracking narrow and targeted signals. A change of course that opens a space for ... Read more The article SETI researchers track extraterrestrial signals in old telescopi…

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Gizmodo broke the news in New York, United States on Friday, July 24, 2026.
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