- A pesquisa indica sistemas extensos de magmá abaixo da crosta marciana.
- Os achados sugerem potencial para a habitabilidade primitiva do Marte.
- Sistema de tubulações interconectado poderia suportar processos químicos complexos.
- A descoberta amplia o raio de busca por planetas passivelmente habitáveis no passado.
Evidências Sísmicas Revelam Rios Extensos de Magmá
Um estudo recente, baseado em dados da InSight, do NASA, revelou atividade sísmica significativa dentro da crosta marciana, sugerindo a presença de rios extensos de magmá. Pesquisadores da Universidade de Oxford analisaram ondas sísmicas para identificar uma fronteira aproximadamente 15 milhas (24 km) abaixo da superfície marciana. Seus achados, publicados na Nature Astronomy, mostraram que esta fronteira provavelmente foi causada por magma derretido acumulando subterraneamente e estendendo-se para centenas ou até milhares de quilômetros em sentido horizontal.
A pesquisa desafia as suposições anteriores sobre a estrutura vulcânica do Marte, que era considerado composto por câmaras de magma isoladas. Em vez disso, os cientistas agora propõem um sistema interconectado que se estende em vastos áreas abaixo da superfície do planeta. Este complexo sistema tubular poderia ter suportado a formação de uma crosta quimicamente rica capaz de reciclar elementos e nutrir as condições necessárias para a vida.
As implicações mais amplas desta descoberta são significativas. Sugere que planetas rochosos anteriormente considerados inabitáveis devido à falta de tectonicidade placa agora merecem investigação adicional. O estudo abre novas possibilidades na busca por ambientes passivelmente habitáveis além da Terra, potencialmente expandindo nosso entendimento das condições planetárias adequadas para a vida.
Fonte: The Guardian
Cali Denesik
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