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cewren @ cewren @lemmy.world
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TIL: About Dyson Sphere. A hypothetical megastructure we would put around a star to absorb the energy being sent in space

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  • While the idea is charming, a Dyson sphere itself would still consist of matter and as such it would emit radiation according to its temperature (https://en.m.wikipedia.org/wiki/Thermal_radiation). And since it surrounds a star it is heated from the inside and would definitely emit radiation that can be detected. Dark Matter is missing this radiation part and is only observed by its gravitation.

    So the answer is no, unfortunately.