Results 51 to 60 of about 167 (129)

The Fermi Paradox Revisited: Technosignatures and the Contact Era

The Astrophysical Journal, 2022
Abstract A new solution to the Fermi Paradox is presented: probes or visits from putative alien civilizations have a very low probability until a civilization reaches a certain age (called the “Contact Era”) after the onset of radio communications.
openaire   +2 more sources

An Extragalactic Widefield Search for Technosignatures with the Murchison Widefield Array

The Astrophysical Journal
It 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
doaj   +1 more source

Evaluation of Several Computer Vision Feature Detectors/Extractors on Ahuna Mons Region in Ceres and Its Implications for Technosignatures Search. [PDF]

Vision (Basel), 2022
De la Torre GG.
europepmc   +1 more source

Technosignature Searches with Real-time Alert Brokers

The Astronomical Journal
We present an exploration of technosignature research that is possible using real-time alert brokers from surveys such as the Zwicky Transient Facility (ZTF) and the upcoming Legacy Survey of Space and Time (LSST).
Eleanor M. Gallay, James R. A. Davenport, Steve Croft   +2 more
doaj   +1 more source

Projections of Earth’s Technosphere: Strategies for Observing Technosignatures on Terrestrial Exoplanets

The Astrophysical Journal Letters
The search for technosignatures—remotely detectable evidence of extraterrestrial technology—draws upon examples from the recent history of Earth as well as projections of Earth’s technosphere.
Jacob Haqq-Misra, Ravi K. Kopparapu, George Profitiliotis   +2 more
doaj   +1 more source

Decolonizing technosignatures: Reimagining technosignatures through an Indigenist lens

There exist numerous proposals for potential technosignatures that we can search for, but they all tend to be deviations from possible naturally occurring signals. That is, technosignatures tend to be a search for pollution. Following a number of works by Indigenous scholars, pollution is colonization, even if that pollution is lightyears away. In this
openaire   +2 more sources

Microlensing Signatures of Dyson Sphere–like Structures around Primordial Black Holes as Technosignatures of Extraterrestrial Advanced Civilizations

The Astrophysical Journal
We investigate the microlensing detectability of extraterrestrial technosignatures originating from Dyson sphere-like structures, such as Dyson swarms surrounding primordial black holes.
Shant Baghram
doaj   +1 more source

WISE/CatWISE Constraints on Dysonian Waste-heat Technosignatures in Nearby Galaxies

The Astronomical Journal
We search for galaxy-scale (Dysonian) waste heat in the mid-infrared using WISE. Starting from the 2MASS Redshift Survey, we crossmatch to CatWISE2020 and AllWISE, apply standard MIR AGN/starburst vetoes (Stern, Assef R90, Jarrett), and treat W1 and W2 ...
Bo-Lun Huang, Zhen-Zhao Tao, Tong-Jie Zhang   +2 more
doaj   +1 more source

Formalising the Pathways to Life Using Assembly Spaces. [PDF]

Entropy (Basel), 2022
Marshall SM, Moore DG, Murray ARG, Walker SI, Cronin L.   +4 more
europepmc   +1 more source

Astrobiology in Space: A Comprehensive Look at the Solar System. [PDF]

Life (Basel), 2023
De Mol ML.
europepmc   +1 more source