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If the universe is teeming with aliens where is everybody?: fifty solutions to the Fermi paradox and the problem of extraterrestrial life

Given the fact that there are perhaps 400 million stars in our Galaxy alone, and perhaps 400 million galaxies in the Universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. The sheer enormities of...

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Detalles Bibliográficos
Autor principal: Webb, Stephen
Lenguaje:eng
Publicado: Springer 2002
Materias:
Acceso en línea:https://dx.doi.org/10.1007/b97464
http://cds.cern.ch/record/2023268
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author Webb, Stephen
author_facet Webb, Stephen
author_sort Webb, Stephen
collection CERN
description Given the fact that there are perhaps 400 million stars in our Galaxy alone, and perhaps 400 million galaxies in the Universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. The sheer enormities of the numbers almost demand that we accept the truth of this hypothesis. Why, then, have we encountered no evidence, no messages, no artifacts of these extraterrestrials? Webb discusses in detail the 50 most cogent and intriguing solutions to Fermi's famous paradox: If the numbers strongly point to the existence of extraterrestrial civilizations, why have we found no evidence of them?
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spelling cern-20232682021-04-21T20:14:14Zdoi:10.1007/b97464http://cds.cern.ch/record/2023268engWebb, StephenIf the universe is teeming with aliens where is everybody?: fifty solutions to the Fermi paradox and the problem of extraterrestrial lifeAstrophysics and AstronomyGiven the fact that there are perhaps 400 million stars in our Galaxy alone, and perhaps 400 million galaxies in the Universe, it stands to reason that somewhere out there, in the 14-billion-year-old cosmos, there is or once was a civilization at least as advanced as our own. The sheer enormities of the numbers almost demand that we accept the truth of this hypothesis. Why, then, have we encountered no evidence, no messages, no artifacts of these extraterrestrials? Webb discusses in detail the 50 most cogent and intriguing solutions to Fermi's famous paradox: If the numbers strongly point to the existence of extraterrestrial civilizations, why have we found no evidence of them?Springeroai:cds.cern.ch:20232682002
spellingShingle Astrophysics and Astronomy
Webb, Stephen
If the universe is teeming with aliens where is everybody?: fifty solutions to the Fermi paradox and the problem of extraterrestrial life
title If the universe is teeming with aliens where is everybody?: fifty solutions to the Fermi paradox and the problem of extraterrestrial life
title_full If the universe is teeming with aliens where is everybody?: fifty solutions to the Fermi paradox and the problem of extraterrestrial life
title_fullStr If the universe is teeming with aliens where is everybody?: fifty solutions to the Fermi paradox and the problem of extraterrestrial life
title_full_unstemmed If the universe is teeming with aliens where is everybody?: fifty solutions to the Fermi paradox and the problem of extraterrestrial life
title_short If the universe is teeming with aliens where is everybody?: fifty solutions to the Fermi paradox and the problem of extraterrestrial life
title_sort if the universe is teeming with aliens where is everybody?: fifty solutions to the fermi paradox and the problem of extraterrestrial life
topic Astrophysics and Astronomy
url https://dx.doi.org/10.1007/b97464
http://cds.cern.ch/record/2023268
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