Results 71 to 80 of about 283 (144)

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

The Search for Technosignatures: a Review of Possibilities

This paper aims to review the diverse range of technosignatures that have been proposed in theliterature. We organize the review by scales, starting carefully from Earth, then zooming out toEarth’s orbit, the solar system, including the Moon, the Earth-Moon Lagrange points, the innersolar system, the asteroid belt, interstellar objects, the outer solar
Vidal, Clément, Benjamin L. Fields, Sowinski, Damian, Elowitz, Mark, Bartlett, Stuart, Terrile, Richard, Ellery, Alex, Bibas, Daliah, Mastrogiovanni, Armando, Döbler, Niklas A., Singla, Manika, DeMarines, Julia, Fisher, Theresa, Uno, Yuri, Turner, Jake, Sneed, Evan, Huggahalli, Advait, Li, Megan Grace, Li, Zhuofu, Huston, Macy, Saide, Ramiro   +20 more
openaire   +4 more sources

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

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

Technosignatures Gap List Study

, 2022
Abstract: Motivation and Objective: The ExEP (Exoplanet Exploration Program) is a program within NASA’s Astrophysics Division whose charter includes identification and development of key technologies to enable the discovery of habitable worlds. We are following up on the 2018 NASA Technosignatures (TS) Workshop report to inform the ExEP with a thorough
openaire   +1 more source

Prior indigenous technological species

, 2017
One of the primary open questions of astrobiology is whether there is extant or extinct life elsewhere the solar system. Implicit in much of this work is that we are looking for microbial or, at best, unintelligent life, even though technological ...
Jason T. Wright
core   +1 more source

Exoplanet Occultations as Technosignature Targets

, 2021
Recent SETI surveys have increased the fraction of the cosmic haystack that has been analyzed by focusing on increasing the number of studied target systems and the total time each target is observed. However, few of these surveys have considered when is best to observe their targets; often instead relying on the assumption that technosignature targets
openaire   +1 more source

A Calibrated Bayesian Search for Potential Chemical Technosignatures in Polluted White Dwarfs

The Astrophysical Journal
We present a meteorite-calibrated Bayesian framework for searching archival abundance records for chemical technosignatures —operationally, compositional patterns better explained by an idealized “processed” template (endmember) than by the empirical ...
Bo-Lun Huang, Zhen-Zhao Tao, Tong-Jie Zhang   +2 more
doaj   +1 more source

Asymptotic burnout and homeostatic awakening: a possible solution to the Fermi paradox? [PDF]

J R Soc Interface, 2022
Wong ML, Bartlett S.
europepmc   +1 more source