Pesquisa revela ambiente parecido com a Terra em Marte

Uma nova pesquisa com o rover Curiosity da Nasa encontrou altos níveis de manganês em rochas do leito de um antigo lago dentro da Cratera Gale em Marte.

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Essa revelação demostra um ambiente no planeta vermelho semelhante à Terra com condições habitáveis no passado.

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O estudo foi publicado no periódico Journal of Geophysical Research: Planets.

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O cientista explica que na Terra esses tipos de depósitos acontecem o tempo todo por causa do alto nível de oxigênio na atmosfera.

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E é produzido pela vida fotossintética e por micróbios, que contribuem para acelerar as reações de oxidação do manganês.

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Se a vida existiu em Marte antigo, o manganês aumentado nas rochas teria sido uma fonte útil de energia.

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