Results 1 to 10 of about 167 (129)
Technosignatures: Frameworks for Their Assessment
Astrophysical Journal, 2023 In view of the promising advancements in technosignature science, the question of what constitutes a robust technosignature is rendered crucial. In this paper, we first delineate a Bayesian framework for ascertaining the reliability of potential ...
Manasvi Lingam +5 more
exaly +3 more sources
Technosignatures Longevity and Lindy's Law
Astronomical JournalThe probability of detecting technosignatures (i.e., evidence of technological activity beyond Earth) increases with their longevity, or the time interval over which they manifest.
Amedeo Balbi, Claudio Grimaldi
exaly +5 more sources
Longevity Is the Key Factor in the Search for Technosignatures [PDF]
Astronomical Journal, 2021 Abstract It is well known that the chances of success of the search for extraterrestrial intelligence depend on the longevity of technological civilizations or, more broadly, on the duration of the signs of their existence, or technosignatures.
Amedeo Balbi, Milan M Cirkovic
exaly +4 more sources
Demography of galactic technosignatures [PDF]
Monthly Notices of the Royal Astronomical Society, 2020 ABSTRACT Probabilistic arguments about the existence of technological life beyond Earth traditionally refer to the Drake equation to draw possible estimates of the number of technologically advanced civilizations releasing, either intentionally or not, electromagnetic emissions in the Milky Way.
Claudio Grimaldi
exaly +4 more sources
Astronomical JournalThe field of Search for Extraterrestrial Intelligence (SETI) searches for “technosignatures” could provide the first detection of life beyond Earth through the technology that an extraterrestrial intelligence may have created.
Sofia Z. Sheikh +7 more
exaly +2 more sources
Detectability of Solar Panels as a Technosignature
The Astrophysical JournalIn this work, we assess the potential detectability of solar panels made of silicon on an Earth-like exoplanet as a potential technosignature. Silicon-based photovoltaic cells have high reflectance in the ultraviolet-to-visible (UV-VIS) and in the near ...
Ravi Kopparapu +4 more
doaj +3 more sources
A note on the Vukotić-Gordon mini-earths [PDF]
Serbian Astronomical Journal, 2023 A recent proposal for a new kind of astroengineering artifact due to Vukotić and Gordon (2022) is discussed, in particular in light of multiple benefits offered by the magnetic Penrose process.
Ćirković Milan M.
doaj +1 more source
Life detection in a universe of false positives
BioEssays, Volume 45, Issue 12, December 2023., 2023 The ultimate goal of astrobiology is to determine the distribution and diversity of life in the universe. But there's a big problem: Most of the planets in our universe are outside our reach. For these exoplanets, can we really ever be certain if they contain life or not?
Harrison B. Smith, Cole Mathis
wiley +1 more source
The Astronomical Journal, 2023 Agrowing avenue for determining the prevalence of life beyond Earth is to search for “technosignatures” from extraterrestrial intelligences/agents. Technosignatures require significant energy to be visible across interstellar space and thus intentional ...
Sofia Z. Sheikh +16 more
doaj +1 more source
On Detecting Interstellar Scintillation in Narrowband Radio SETI
The Astrophysical Journal, 2023 To date, the search for radio technosignatures has focused on sky location as a primary discriminant between technosignature candidates and anthropogenic radio frequency interference (RFI).
Bryan Brzycki +6 more
doaj +1 more source