Results 1 to 10 of about 357 (153)
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 +4 more sources
Technosignatures Longevity and Lindy's Law [PDF]
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 +7 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 +5 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 +3 more sources
An Extragalactic Widefield Search for Technosignatures with the Murchison Widefield Array [PDF]
Astrophysical JournalIt is common for surveys that are designed to find artificial signals generated by distant civilizations to focus on galactic sources. Recently, researchers have started focusing on searching for all other sources within the field observed, including the
C. D. Tremblay, S. J. Tingay
exaly +3 more sources
A Green Bank Telescope Search for Narrowband Technosignatures between 1.1 and 1.9 GHz During 12 Kepler Planetary Transits [PDF]
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 +3 more sources
Detecting Technosignatures from Earth-scale Civilizations
Astrophysical Journal, 2023 Assuming civilizations have similar interplanetary communications and radar capability to NASA’s Deep Space Network, what is the feasibility of intercepting their communications? Interplanetary conjunctions between Earth-like exoplanets, their stars, and
Reza Ashtari
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