Ceres, el planeta enano, podría albergar vida.

Ceres es el objeto más grande en el cinturón de asteroides entre los planetas Marte y Júpiter. En un nuevo estudio, los científicos sugieren que este planeta enano contiene una gran masa de agua salada bajo su fría superficie.

Los investigadores describen a Ceres como un mundo oceánico, un lugar que podría tener las condiciones adecuadas para sustentar organismos vivos.

El estudio fue publicado a principios de este mes en las publicaciones Nature Astronomy, Nature Geoscience y Nature Communications.

La investigación se basa en datos recopilados por la nave espacial Dawn de la NASA, que voló tan a 35 kilómetros de la superficie de Ceres en 2018. El estudio proporciona evidencia de que el planeta enano permanece geológicamente activo con criovolcanismo: volcanes que producen material helado.

Imagen: Wikipedia.

Los científicos dicen que sus hallazgos confirman la presencia de un depósito de agua salada debajo de la superficie que se ha estado congelando lentamente. La científica planetaria e investigadora principal de Dawn, Carol Raymond, dijo a la agencia de noticias Reuters que este hallazgo es lo que convierte a Ceres en un mundo oceánico, a pesar de que el líquido no cubre todo el planeta enano.

En el caso de Ceres, sabemos que el depósito de líquido es a escala regional, y no podemos decir con certeza que sea global. Sin embargo, lo que más importa es que hay líquido en gran cantidad , dijo Raymond.

Ceres tiene alrededor de 950 kilómetros de diámetro. Los científicos centraron su trabajo en un cráter de 92 kilómetros de ancho formado cuando un gran objeto golpeó a Ceres hace unos 22 millones de años. El cráter tiene dos áreas brillantes causadas por la acumulación de sal del líquido que llegó a la superficie.

Los científicos dicen que el líquido comenzó en un depósito de agua salada de cientos de kilómetros de ancho a unos 40 kilómetros por debajo de la superficie. Cuando el objeto grande se estrelló contra Ceres, las roturas en la superficie del planeta enano crearon aberturas para que el agua salada escapara.

Hay varios otros cuerpos del sistema solar más allá de la Tierra donde al menos parece haber océanos debajo de la superficie. Estos incluyen la luna de Júpiter, Europa; la luna de Saturno, Encélado; la luna de Neptuno, Tritón; y el planeta enano Plutón.

El agua se considera un elemento fundamental para la vida. Los científicos quieren estudiar si Ceres alguna vez fue el hogar de vida microbiana.

Foto: NASA.

La científica planetaria Julie Castillo del Laboratorio de Propulsión a Chorro de la NASA dijo que hay un gran interés en este momento en examinar la posibilidad de vida en el reservorio de Ceres.

Somos Extremo Mundial.

Con información de Reuters.

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