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Uma equipe internacional de astr\u00f4nomos descobriu um leve zumbido que permeia o universo e fornecer\u00e1 pistas sobre buracos negros supermassivos, gal\u00e1xias em colis\u00e3o e possivelmente o Big Bang. O Observat\u00f3rio Norte-Americano de Nanohertz para [&hellip;]"}