Results 31 to 40 of about 3,102,022 (309)

Is the Universe Enough? Can It Suffice as a Basis for Worldviews?

open access: yesJournal of Big History, 2019
The modern scientific cosmic perspective is unique and compelling, but it is not for everyone. Modern cosmology can be humbling and awe-inspiring, even motivating It can also be overwhelming, even scary.
Mark Lupisella
doaj   +1 more source

Evolution of cosmic strings [PDF]

open access: yesPhysical Review D, 1986
The evolution of a system of cosmic strings is studied using an extended version of an analytic formalism introduced by Kibble. It is shown that, in a radiation-dominated universe, the fate of the string system depends sensitively on the fate of the closed loops that are produced by the interactions of very long strings.
openaire   +2 more sources

Cosmic Union of Communities: a New Concept and Technologies of Creating Cosmic Humanity [PDF]

open access: yesФилософия и космология, 2019
The article deals with the philosophical foundations of the theory and practice of creating Cosmic Humanity. It suggests a new idea, concept and technology of organizing cosmic communities, i.e.
Sergey Krichevsky
doaj   +1 more source

Cosmic-Ray Acceleration and Magnetic Fields in Galaxy Clusters and Beyond: Insights from Radio Observations

open access: yesUniverse, 2023
The discovery of diffuse radio emission in galaxy clusters proved the existence of energetic cosmic-ray electrons and cosmic magnetic fields on Mpc-scales in the Universe.
Denis Wittor
doaj   +1 more source

Cosmic evolution of the spatially resolved star formation rate and stellar mass of the CALIFA survey [PDF]

open access: yesAstronomy & Astrophysics, 2018
We investigate the cosmic evolution of the absolute and specific star formation rate (SFR, sSFR) of galaxies as derived from a spatially resolved study of the stellar populations in a set of 366 nearby galaxies from the Calar Alto Legacy Integral Field ...
R. Fern'andez   +10 more
semanticscholar   +1 more source

Dynamical Evolution of Cosmic Supermassive Binary Black Holes and Their Gravitational-wave Radiation [PDF]

open access: yesAstrophysical Journal, 2020
We investigate the evolution of supermassive binary black holes (BBHs) in galaxies with realistic property distributions and the gravitational-wave (GW) radiation from the cosmic population of these BBHs.
Yunfeng Chen, Qingjuan Yu, Youjun Lu
semanticscholar   +1 more source

Evolução do Sistema Solar Primordial em Termos de Grande História e Evolução Universal

open access: yesJournal of Big History, 2018
A presente contribuição é dedicada a alguns aspectos da história e evolução do Sistema Solar primordial. A origem do Sol, da Terra, de outros planetas e dos seus satélites tem sido de grande interesse para as pessoas.
Leonid Grinin
doaj   +1 more source

The Tree of Knowledge: System A New Map for Big History

open access: yesJournal of Big History, 2019
This article summarizes the Tree of Knowledge (ToK) System (Henriques, 2003; 2011), and compares and contrasts its depiction of cosmic evolution as four “dimensions of existence” (i.e., Matter, Life, Mind and Culture) with Big History’s eight thresholds ...
Gregg Henriques   +3 more
doaj   +1 more source

The cosmic merger rate density of compact objects: impact of star formation, metallicity, initial mass function, and binary evolution [PDF]

open access: yes, 2020
We evaluate the redshift distribution of binary black hole (BBH), black hole - neutron star binary (BHNS) and binary neutron star (BNS) mergers, exploring the main sources of uncertainty: star formation rate (SFR) density, metallicity evolution, common ...
F. Santoliquido   +4 more
semanticscholar   +1 more source

The Polyfurcation Century: Does the Evolution on Earth Have a Cosmological Relevance?

open access: yesJournal of Big History, 2018
Special cross-disciplinary research and respective calculations done independently by scientists from various countries have shown that the 21st century is expected to be crucial for the human history.
Akop P. Nazaretyan
doaj   +1 more source

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