Astronomers dangle hunted for extraterrestrial civilizations in planetary methods for sixty years, to no avail. Within the paper printed by International Journal of Astrobiology, Cambridge College Press, and titled “Migrating extraterrestrial civilizations and interstellar colonization: Implications for SETI and SETA,” Irina K. Romanovskaya proposes that the look for extraterrestrial intelligence (SETI) could maybe well well dangle extra potentialities to change into a hit when including the look for migrating extraterrestrial civilizations.
Let’s thunder, extraterrestrial civilizations could maybe well well leave their dwelling planetary methods when they face existential threats. Belief to be one of the methods to construct out so is to drag free-floating planets. Free-floating planets can provide dwelling and resources, as well to protection from dwelling radiation, for terribly gigantic populations embarking on interstellar race. It is maybe technically inconceivable that mammoth starships, essentially acknowledged as world ships, can provide the equal.
Extraterrestrial civilizations could maybe well well additionally exercise free-floating planets to ship natural or post-natural species to stare interstellar dwelling, stars, and planetary methods, or to place their colonies in plenty of planetary methods to construct and build bigger their civilizations even sooner than they face existential threats at dwelling.
In her paper, Romanovskaya discusses how extraterrestrial civilizations could maybe well well hitch a drag on free-floating planets which will possible be trespassing by their dwelling planetary methods, or they would well drag planet-relish objects ejected from their planetary methods by dying host stars. Alternatively, extraterrestrial civilizations could maybe well well exercise propulsion methods and gravity wait on occasions to convert Sedna-kind Oort-cloud objects of their planetary methods into free-floating planets and drag them amongst the stars.
Romanovskaya points out that with runt starlight reaching free-floating planets, extraterrestrials could maybe well well exercise managed nuclear fusion because the source of energy, and they also could maybe well inhabit subsurface habitats and oceans of the free-floating planets to be protected from dwelling radiation. That could maybe well possible additionally prepare them for colonization of oceans in planetary methods.
As a result of free-floating planets can no longer support their oceans without extinguish and further exploration alternatives exist in planetary methods, extraterrestrial civilizations would drag free-floating planets to attain and colonize planets orbiting stars. Upon their end blueprint to planetary methods, the extraterrestrials could maybe well well switch from their free-floating planets to chosen Oort-cloud objects of the planetary methods that could maybe well possible lift them inwards and in opposition to the major planets of the planetary methods. Or, the planetary methods could maybe well well spend such free-floating planets. Then, the extraterrestrials would colonize the planetary methods.