TL;DR
This paper provides a brief, subjective review of developments in SETI in 2020, covering research results, new methods, target selection, technosignatures, ETI theory, and social aspects, based on 75 recent publications.
Contribution
It offers a comprehensive overview of recent advances in SETI in 2020, categorizing key research areas and summarizing progress across multiple facets of the field.
Findings
Results from recent SETI searches
Development of new search techniques and instruments
Insights into social and theoretical aspects of ETI
Abstract
In the spirit of Trimble's "Astrophysics in XXXX' series, I very briefly and subjectively review developments in SETI in 2020. My primary focus is 75 papers and books published or made public in 2020, which I sort into six broad categories: results from actual searches, new search methods and instrumentation, target and frequency seleciton, the development of technosignatures, theory of ETIs, and social aspects of SETI.
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