SETI in 2020

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.

9 pp. Intended to be the first in an annual series. v.2 is the accepted version after proof corrections, and includes a description of one additional paper

References in corpus (21)

• The Ĝ Infrared Search for Extraterrestrial Civilizations with Large Energy Supplies. II. Framework, Strategy, and First Result
• Families of Plausible Solutions to the Puzzle of Boyajian's Star
• The Astrobiological Copernican Weak and Strong Limits for Extraterrestrial Intelligent Life
• The Vanishing & Appearing Sources during a Century of Observations project: I. USNO objects missing in modern sky surveys and follow-up observations of a "missing star"
• What's in a name: The etymology of astrobiology
• Interstellar communication network. I. Overview and assumptions
• Narrow-Band Signal Localization for SETI on Noisy Synthetic Spectrogram Data
• Biosignature Surveys to Exoplanet Yields and Beyond
• Qualitative classification of extraterrestrial civilizations
• Intermittent Signals and Planetary Days in SETI
• Furthering a Comprehensive SETI Bibliography
• Reworking the SETI Paradox: METI's Place on the Continuum of Astrobiological Signaling
• Constraints on the abundance of $0.01c$ stellar engines in the Milky Way
• Interstellar communication network. II. Deep space nodes with gravitational lensing
• Unsupervised Distribution Learning for Lunar Surface Anomaly Detection
• Novel Technosignatures
• On the Likelihood of Observing Extragalactic Civilizations: Predictions from the Self-Indication Assumption
• Searching for a message in the angular power spectrum of the cosmic microwave background
• Habitability of M dwarfs is a problem for the traditional SETI
• Breve historia de la astrobiología en Argentina
• Detectability of Thermal Emission from Sub-Relativistic Objects