NASA's Webb telescope rules out two new Dyson sphere candidates

Phys.org reports that NASA's James Webb Space Telescope has ruled out two newly identified stars as potential Dyson sphere candidates. The Swedish‑led technosignature search found no evidence that the objects are the massive energy‑capturing structures hypothesized for advanced alien civilizations. By eliminating these possibilities, the hunt narrows the list of stars that could host such megastructures.

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