Scientists continue to search for extraterrestrial civilizations, although they have not yet been successful. The authors of a new study published in the Monthly Notices of the Royal Academy of Sciences believe that technosignatures of potential aliens in the form of Dyson spheres may have already been discovered.
A Dyson sphere is a hypothetical structure that could only be built by a highly advanced civilization. Such structures must be created around stars in order to harness all their energy.
According to the well-known Kardashev scale, only a Type II civilization could create something like this. As Focus has already written , scientists believe that humanity has not even reached the level of Type I civilization.
Study that shows these results: Project Hephaistos – II. Dyson sphere candidates from Gaia DR3, 2MASS, and WISE
Abstract
The search for extraterrestrial intelligence is currently being pursued using multiple techniques and in different wavelength bands. Dyson spheres, megastructures that could be constructed by advanced civilizations to harness the radiation energy of their host stars, represent a potential technosignature, that in principle may be hiding in public data already collected as part of large astronomical surveys. In this study, we present a comprehensive search for partial Dyson spheres by analyzing optical and infrared observations from Gaia, 2MASS, and WISE. We develop a pipeline that employs multiple filters to identify potential candidates and reject interlopers in a sample of five million objects, which incorporates a convolutional neural network to help identify confusion in WISE data. Finally, the pipeline identifies 7 candidates deserving of further analysis. All of these objects are M-dwarfs, for which astrophysical phenomena cannot easily account for the observed infrared excess emission.
American Buddhist Net 