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Source : ESA<\/figcaption><\/figure>\n

La surface de Mars<\/strong> continue de r\u00e9v\u00e9ler des secrets fascinants gr\u00e2ce aux explorations spatiales. Le rover Perseverance de la NASA, par exemple, a r\u00e9cemment photographi\u00e9 une formation rocheuse \u00e9tonnamment similaire \u00e0 un bonhomme de neige<\/a>, une d\u00e9couverte qui a amus\u00e9 le monde entier. Mais au-del\u00e0 des curiosit\u00e9s visuelles, d'autres trouvailles sont plus significatives<\/strong> : des signes potentiels de vie microbienne ancienne ont \u00e9t\u00e9 identifi\u00e9s dans une roche surnomm\u00e9e \u201cCheyava Falls\u201d<\/a>. Ces indices, qui pourraient changer notre compr\u00e9hension de la vie dans l'univers<\/strong>, montrent \u00e0 quel point la plan\u00e8te rouge continue de captiver les chercheurs et le grand public.<\/p>\n

L'orbiteur ExoMars de l'Agence spatiale europ\u00e9enne (ESA) a r\u00e9cemment d\u00e9livr\u00e9 une nouvelle image intrigante<\/strong>. Lors d'un survol en 2022, il a captur\u00e9 une sc\u00e8ne surprenante dans une r\u00e9gion appel\u00e9e Terra Sirenum, autrefois riche en eau<\/strong>. Au milieu des paysages rouges et bruns caract\u00e9ristiques de Mars, une formation violette scintillante a \u00e9t\u00e9 d\u00e9tect\u00e9e. Surnomm\u00e9e la “sir\u00e8ne sal\u00e9e<\/strong><\/em>“, cette d\u00e9couverte, bien que visuellement fascinante, cache en r\u00e9alit\u00e9 des d\u00e9p\u00f4ts de sel qui pourraient offrir des indices pr\u00e9cieux sur l'ancienne pr\u00e9sence d'eau sur cet astre<\/a>.<\/p>\n