O universo esconde fábricas naturais de buracos negros

SAÚDE Imagem: Fala Ciência/ AI

Os maiores buracos negros do universo podem nascer em ambientes extremos. Cientistas descobriram pistas surpreendentes escondidas em ondas no espaço-tempo.

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Essas ondas são chamadas de ondas gravitacionais. Elas surgem quando buracos negros gigantes colidem violentamente no cosmos.

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Os sinais foram detectados por observatórios gigantes na Terra. Entre eles estão o LIGO, o Virgo e o KAGRA.

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Os pesquisadores analisaram mais de 150 colisões cósmicas. O objetivo era descobrir como surgem os buracos negros mais pesados já observados.

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A resposta pode estar nos aglomerados globulares. Esses locais reúnem milhões de estrelas espremidas em pequenas regiões do espaço.

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Nesse ambiente caótico, buracos negros menores podem se fundir várias vezes. Cada colisão cria um objeto ainda maior e mais massivo.

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Os cientistas perceberam algo estranho. Os buracos negros gigantes giram rápido e em direções aleatórias, sinal de múltiplas fusões anteriores.

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O estudo também reforça a existência de uma misteriosa “lacuna de massa”. Acima de cerca de 45 vezes a massa do Sol, estrelas talvez não consigam formar buracos negros diretamente.

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Em vez disso, estrelas extremamente massivas podem explodir completamente. Sem deixar nenhum núcleo para trás após a supernova.

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Essa descoberta pode mudar o que sabemos sobre a morte das estrelas. E também revelar como os maiores monstros cósmicos do universo realmente surgem.

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