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There's something poetic about humanity's attempt to detect other civilizations somewhere in the Milky Way's expanse. There's also something futile about it. But we're not going to stop. There's little doubt about that.
Artist's impression of a Dyson Sphere. The construction of such a massive engineering structure would create a technosignature that could be detected by humanity. These are large-scale astronomical surveys designed for different purposes. Each one of them generated an enormous amount of data from individual stars.
"This structure would emit waste heat in the form of mid-infrared radiation that, in addition to the level of completion of the structure, would depend on its effective temperature," Suazo and his colleagues write.and nebulae. Background galaxies can also emit excess infrared radiation and create false positives. It's the pipeline's job to filter them out.
"All sources are clear mid-infrared emitters with no clear contaminators or signatures that indicate an obvious mid-infrared origin," they explain.
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