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" ... For example, we could build a swarm in space to collect even more of the Sun's energy. Imagine a large series of spaceships moving in a ring, or a series of rings, with large collecting areas. That energy could be used for whatever purposes we desired: it could be reflected or beamed back to Earth, it could be used in-situ to build a network surrounding the Solar System, or for interstellar communications purposes. This is where the idea of alien megastructures — once theorized to be the explanation for the dimming of Tabby's star — originally arose. ... "
" ... So with Starlink perhaps SpaceX is building Earth’s first planetary megastructures, but it’s going to take an awful long time before we humans get anywhere near having our own “techno-signature.” ... "
" ... So, what possible explanations remained? One popular idea that was advanced was that of alien megastructures: that a civilization far ahead of humanity, technologically, was constructing an apparatus that periodically (or aperiodically) blocked a large percentage of the star's light. As the structure became more and more complete, that would increase the amount of light that was blocked. Over the past century, the fact that the light from this star had dimmed by such a significant amount could be explained by an advance in how completed the structure would be. ... "
" ... What's most interesting about this? That although the first explanation would result in infrared radiation being detectable for this mysterious object, which it doesn't show, the second explanation -- one of the original non-exotic explanations put forth by KIC 8462852's investigators -- could also account for the weird "alien megastructures" star! ... "