The search for extraterrestrial intelligence (SETI) is a scientific endeavor which struggles with unique issues — a strong indeterminacy in what data to look for and when to do so. […]
SETI
Posted inSETI & Technosignatures
SETI in 2020
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 74 papers and books published or […]
Posted inSETI & Technosignatures
Strategies and Advice for the Search for Extraterrestrial Intelligence (SETI)
As a guide for astronomers new to the field of technosignature search (i.e. SETI), I present an overview of some of its observational and theoretical approaches. I review some of […]
Posted inSETI & Technosignatures
Furthering A Comprehensive SETI Bibliography
In 2019, Reyes & Wright used the NASA Astrophysics Data System (ADS) to initiate a comprehensive bibliography for SETI accessible to the public. Since then, updates to the library have […]
Posted inSETI & Technosignatures
Implications of a search for intergalactic civilizations on prior estimates of human survival and travel speed
We present a model where some proportion of extraterrestrial civilizations expand uniformly over time to reach a cosmological scale. We then ask what humanity could infer if a sky survey […]
Posted inSETI & Technosignatures
Strategies For Maximizing Detection Rate In Radio SETI
The Search for Extraterrestrial intelligence (SETI) is a scientific and cultural effort seeking evidence of intelligent life beyond earth. Radio SETI observes the radio spectrum for ”technosignatures” that could be […]
Posted inSETI & Technosignatures
The Detectability Of Nightside City Lights On Exoplanets
I estimate the detectability of nightside city lights on habitable, Earth-like, exoplanets around nearby stars using direct-imaging observations from the proposed LUVOIR and HabEx observatory architectures. I used data from […]
Posted inSETI & Technosignatures
The Breakthrough Listen Search For Intelligent Life Near the Galactic Center I
A line-of-sight towards the Galactic Center (GC) offers the largest number of potentially habitable systems of any direction in the sky. The Breakthrough Listen program is undertaking the most sensitive […]
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SETI Tactics On FAST Fractality
We combed the Koch snowflake fractal antennae in calibre design of Five-hundred-meter Aperture Spherical radio Telescope (FAST), building a conjecture of a second-order fractal primary reflectors to optimize the orientated […]
Posted inSETI & Technosignatures
Searching For Interstellar Quantum Communications
The modern search for extraterrestrial intelligence (SETI) began with the seminal publications of Cocconi & Morrison (1959) and Schwartz & Townes (1961), who proposed to search for narrow-band signals in […]