{"id":119196,"date":"2025-05-12T20:28:04","date_gmt":"2025-05-12T19:28:04","guid":{"rendered":"https:\/\/helloproject.es\/vigilancia\/la-radiacion-ultravioleta-de-marte-podria-ser-compatible-con-algunas-formas-de-vida\/"},"modified":"2025-05-12T20:28:04","modified_gmt":"2025-05-12T19:28:04","slug":"la-radiacion-ultravioleta-de-marte-podria-ser-compatible-con-algunas-formas-de-vida","status":"publish","type":"post","link":"https:\/\/helloproject.es\/vigilancia\/la-radiacion-ultravioleta-de-marte-podria-ser-compatible-con-algunas-formas-de-vida\/","title":{"rendered":"La radiaci\u00f3n ultravioleta de Marte podr\u00eda ser compatible con algunas formas de vida"},"content":{"rendered":"

Una investigaci\u00f3n liderada por el Centro de Astrobiolog\u00eda (CAB, CSIC-INTA) muestra que las dosis de radiaci\u00f3n ultravioleta (UV) obtenidas desde la superficie de Marte son comparables a las que debieron existir en la tierra primitiva.<\/p>\n

Los investigadores analizaron datos de radiaci\u00f3n de m\u00e1s de cinco a\u00f1os marcianos, equivalentes a m\u00e1s de diez a\u00f1os terrestres<\/p>\n

Los resultados del estudio, publicados en la\u00a0revista\u00a0PNAS, indican que esos niveles de UV no son absolutamente incompatibles con la vida.<\/p>\n

Las dosis de UV se han obtenido a partir de datos de irradiancia adquiridos por el instrumento REMS, a bordo del r\u00f3ver Curiosity de la NASA, que aterriz\u00f3 en el a\u00f1o 2012 en el cr\u00e1ter Gale, cerca del ecuador de Marte.<\/p>\n

Los investigadores han analizado m\u00e1s de cinco a\u00f1os marcianos (equivalentes a m\u00e1s de diez a\u00f1os terrestres) de datos de radiaci\u00f3n UV en las bandas UV-A, UV-B y UV-C. Los\u00a0resultados\u00a0obtenidos muestran que la radiaci\u00f3n UV que alcanza la superficie del cr\u00e1ter Gale se compone, en promedio, de 79,6 % UV-A, 15,3 % UV-B y 5,1 % UV-C.<\/p>\n

<\/a><\/p>\n

Una protecci\u00f3n impredecible<\/h2>\n

La radiaci\u00f3n UV-C es particularmente da\u00f1ina para los seres vivos. En la Tierra, esta radiaci\u00f3n es absorbida por la capa de ozono que protege nuestro planeta. La atm\u00f3sfera de Marte, a pesar de contener ozono, es unas 100 veces m\u00e1s tenue y, por tanto, no apantalla de la misma manera. Por eso, la radiaci\u00f3n solar llega pr\u00e1cticamente en su totalidad hasta la superficie del planeta.<\/p>\n

La escasa protecci\u00f3n que proporciona la atm\u00f3sfera de Marte frente a la radiaci\u00f3n UV se debe al polvo que se encuentra en suspensi\u00f3n<\/p>\n

La escasa protecci\u00f3n que proporciona la atm\u00f3sfera de Marte frente a la radiaci\u00f3n UV se debe al polvo que se encuentra en suspensi\u00f3n, sobre todo durante la estaci\u00f3n de tormentas de polvo.<\/p>\n

Los resultados de este estudio muestran variaciones dr\u00e1sticas y muy r\u00e1pidas en los niveles de radiaci\u00f3n UV, capaces de cambiar las dosis en m\u00e1s de un 30 % en pocos soles (d\u00edas marcianos). Estas variaciones son complejas e impredecibles con los modelos atmosf\u00e9ricos actuales.<\/p>\n

Aunque las dosis de UV en Marte son muy superiores a las existentes en la Tierra actual, sus niveles son comparables a los que se cree que exist\u00edan en la Tierra primitiva, cuando la vida se origin\u00f3 y evolucion\u00f3.<\/p>\n

As\u00ed, este estudio demuestra que la radiaci\u00f3n UV que alcanza la superficie marciana no es absolutamente incompatible con la vida. As\u00ed, puede no ser suficiente por s\u00ed sola para eliminar todos los microorganismos terrestres que viajan a bordo de las misiones espaciales.<\/p>\n

Sin embargo, resulta esencial mantener las estrictas medidas de protecci\u00f3n planetaria para evitar la contaminaci\u00f3n de Marte con vida terrestre, especialmente en futuras misiones tripuladas.<\/p>\n

Referencia:<\/p>\n

Vi\u00fadez-Moreiras et al. \u201cUltraviolet and Biological Effective Dose Observations at Gale Crater, Mars\u201d. PNAS (2025).<\/p>","protected":false},"excerpt":{"rendered":"

Una investigaci\u00f3n liderada por el Centro de Astrobiolog\u00eda (CAB, CSIC-INTA) muestra que las dosis de radiaci\u00f3n ultravioleta (UV) obtenidas desde la superficie de Marte son comparables a las que debieron existir en la tierra primitiva. Los investigadores analizaron datos de radiaci\u00f3n de m\u00e1s de cinco a\u00f1os marcianos, equivalentes a m\u00e1s de diez a\u00f1os terrestres Los […]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[5],"tags":[],"class_list":["post-119196","post","type-post","status-publish","format-standard","hentry","category-noticias"],"yoast_head":"\nLa radiaci\u00f3n ultravioleta de Marte podr\u00eda ser compatible con algunas formas de vida - bip4ex<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/helloproject.es\/vigilancia\/la-radiacion-ultravioleta-de-marte-podria-ser-compatible-con-algunas-formas-de-vida\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La radiaci\u00f3n ultravioleta de Marte podr\u00eda ser compatible con algunas formas de vida\" \/>\n<meta property=\"og:description\" content=\"Una investigaci\u00f3n liderada por el Centro de Astrobiolog\u00eda (CAB, CSIC-INTA) muestra que las dosis de radiaci\u00f3n ultravioleta (UV) obtenidas desde la superficie de Marte son comparables a las que debieron existir en la tierra primitiva. 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