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Seti: how we're searching for alien life at previously unexplored frequencies

By Owen Johnson, PhD Candidate of Astrophysics, Trinity College Dublin
Is there life beyond Earth? The question has turned out to be one of the hardest to answer in science. Despite the seemingly boundless expanse of the universe, which implies there’s potential for abundant life, the vast distances between stars render the search akin to locating a needle in a cosmic haystack.

The Search for Extraterrestrial Intelligence (Seti) constitutes a branch of astronomy dedicated to finding extraterrestrial life by searching for unusual signals, dubbed technosignatures. The identification of a technosignature…The Conversation

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