A team of astronomers has made an intriguing discovery by searching through recent astronomical survey data, identifying seven candidates for alien megastructures, specifically Dyson spheres, that warrant further analysis.
This composite image made available by NASA shows the spider part of "The Spider and the Fly" nebulae, IC 417, where many stars are formed, captured in infrared by the Spitzer Space Telescope and the Two Micron All Sky Survey …
The seven objects are all located within 1,000 light-years of Earth and are classified as “M-dwarfs.” These stars are smaller and less bright than our sun. Mr. Dyson theorized that such megastructures would produce an observable signature—a significant excess of infrared radiation. This is because, while the megastructures would absorb visible light from the star, they wouldn’t be able to use all the energy. The excess energy would be emitted as infrared light, which has a longer wavelength.
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