Expanding the SETI Frontier: Reanalyzing ALMA Millimeter Data with a Besançon Galactic Model to Survey 6.1 Million Stars for Technosignatures

To the point

Louisa Mason argues that SETI should search for alien technosignatures in millimeter and submillimeter frequencies and use the Besançon Galactic Model to include many more stars, expanding the search space even though no signals have been detected yet.

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universetoday.com

Alien Signals May Hide in Unexplored High Radio Frequencies

Confirming the existence of extraterrestrial intelligence via radio signals, also called technosignatures, is the cornerstone of radio astronomy. While humanity has been asking since time immemorial whether or not we’re alone in the universe, radio astronomers are at the frontlines trying to tirelessly answer this longstanding question. To accomplish this, they’ve traditionally focused on a specific radio frequency band called the “water hole”, which resides between 1.42 and 1.66 GHz. This is due to two water-forming molecules, hydrogen and hydroxyl, emitting these frequencies.