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      <news:title>Por que achar vida em Marte também pode ser um problema?</news:title>
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      <news:title>Por que existe mais matéria que antimatéria no Universo?</news:title>
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      <news:publication_date>2026-08-18T14:40:00.000Z</news:publication_date>
      <news:title>Como encontrar planetas errantes que não orbitam estrelas</news:title>
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      <news:title>Como um quasar cresce sem a própria luz expulsar o gás?</news:title>
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      <news:title>Pode existir uma estrela de nêutrons dentro de outra estrela?</news:title>
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      <news:title>Em Titã chove metano? Como funciona esse ciclo</news:title>
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      <news:title>O vácuo não está vazio: o que isso significa de verdade?</news:title>
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      <news:title>Como surgiram buracos negros gigantes tão cedo no Universo?</news:title>
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      <news:title>Por que pulsares funcionam como relógios cósmicos?</news:title>
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      <news:title>Como sabemos que Europa esconde um oceano sob o gelo?</news:title>
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