Dyson spheres could be signs of advanced civilizations from "summary" of EXTRATERRESTRIAL by Avi Loeb
The concept of Dyson spheres as signs of advanced civilizations is an intriguing one. In the search for extraterrestrial intelligence, scientists have proposed that these hypothetical megastructures could be evidence of highly advanced alien societies harnessing the energy of their host stars. A Dyson sphere is a theoretical construct proposed by physicist Freeman Dyson in 1960. It is essentially a shell or swarm of satellites surrounding a star to capture its energy output. Such a structure would be able to provide an enormous amount of power to a civilization capable of building it. The idea behind Dyson spheres as indicators of advanced civilizations is based on the assumption that any sufficiently advanced society would likely need vast amounts of energy to sustain itself. By constructing a Dyson sphere around their host star, these aliens could tap into a nearly limitless source of power. The search for Dyson spheres has become one of the key ways in wh...
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