Results 41 to 50 of about 588 (145)
AerospaceThis study presents the implementation of Multi-Criteria Decision-Making (MCDM) methodologies, particularly the fuzzy technique for order of preference by similarity to ideal solution (TOPSIS), in prioritizing technosignatures (TSs) for the search for ...
Juan Miguel Sánchez-Lozano +2 more
doaj +1 more source
Observational Constraints on the Great Filter
, 2020 The search for spectroscopic biosignatures with the next-generation of space telescopes could provide observational constraints on the abundance of exoplanets with signs of life.
Haqq-Misra, Jacob +2 more
core +1 more source
What is the noosphere? Planetary superorganism, major evolutionary transition and emergence
Systems Research and Behavioral Science, Volume 41, Issue 4, Page 614-622, July/August 2024.Abstract The noosphere remains an underappreciated and understudied idea despite that it provides unique hope towards a positive and meaningful global integration. A core reason for this lack of attention is that its very definition is often unclear both in the West with Teilhard de Chardin and in the East with Vernadsky.
Clément Vidal
wiley +1 more source
Time Markers for SETI in Binary Systems: History and Prospects
AstronomyContemporary surveys in the search for extraterrestrial intelligence (SETI) typically make one-off “spot scans” across the sky to search planetary systems for narrow-band radio signals that would indicate the presence of intelligent life.
Jacob Haqq-Misra
doaj +1 more source
, 2018 Exoplanet surface imaging, cartography and the search for exolife are the next frontiers of planetology and astrophysics. Here we present an over-view of ideas and techniques to resolve albedo features on exoplanetary surfaces.
A Carbognani +37 more
core +1 more source
The Most Sensitive SETI Observations Toward Barnard's Star with FAST
The Astronomical Journal, 2023 Search for extraterrestrial intelligence (SETI) has been mainly focused on nearby stars and their planets in recent years. Barnard’s star is the second closest star system to the Sun and the closest star in the Five-hundred-meter Aperture Spherical radio
Zhen-Zhao Tao +6 more
doaj +1 more source
A Limited Habitable Zone for Complex Life
, 2019 The habitable zone (HZ) is commonly defined as the range of distances from a host star within which liquid water, a key requirement for life, may exist on a planet's surface. Substantially more CO2 than present in Earth's modern atmosphere is required to
Harman, Chester E. +4 more
core +1 more source
Technosignatures in the Solar System
, 2022 Abstract: NASA has five robotic space probes on escape trajectories from the solar system (Pioneer 11, Pioneer 12, Voyager 1, Voyager 2, and New Horizons), and the Interstellar Probe is a concept likely to be submitted for consideration in the forthcoming Solar & Space Physics Decadal Survey.
openaire +2 more sources
Nine axes of merit for technosignature searches [PDF]
International Journal of Astrobiology, 2019 AbstractIt can be difficult to develop an effective and balanced search strategy in SETI, especially from a funding perspective, given the diverse methodologies and myriad orthogonal proposals for the best technosignatures. Here I propose a framework to compare the relative advantages and disadvantages of various proposed technosignatures based on nine
openaire +2 more sources
The Astrophysical Journal, 2023 I apply the thermodynamics of radiation to Dyson spheres as machines that do work or computation and examine their observational consequences. I identify four properties of Dyson spheres that complicate typical analyses: globally, they may do no work in ...
Jason T. Wright
doaj +1 more source