{"id":132069,"date":"2026-04-17T21:27:33","date_gmt":"2026-04-17T21:27:33","guid":{"rendered":"http:\/\/69e267ad7d81f8455673a903"},"modified":"2026-04-17T21:27:33","modified_gmt":"2026-04-17T21:27:33","slug":"adios-a-arrakis-y-tatooine-por-fin-sabemos-cuanta-agua-debe-tener-un-planeta-para-sostener-la-vida","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=132069","title":{"rendered":"Adi\u00f3s a Arrakis y Tatooine: por fin sabemos cu\u00e1nta agua debe tener un planeta para sostener la vida"},"content":{"rendered":"<p>La literatura de ciencia ficci\u00f3n est\u00e1 repleta de planetas des\u00e9rticos, con atm\u00f3sfera respirable y en cuya superficie especies vivas se han adaptado por largo tiempo al terreno \u00e1rido. Sin embargo, seg\u00fan un reciente art\u00edculo, para que un planeta similar a la Tierra sea viable para albergar vida debe tener una cantidad m\u00ednima de agua superficial. Cuando el agua de un planeta est\u00e1 por debajo del 20% proporcional a la que hay en los oc\u00e9anos terrestres, el clima colapsa, y los \u00fanicos planetas con vida estable ser\u00edan aquellos en los que al menos el 50% del clima es estable. De lo contrario, ese planeta des\u00e9rtico terminar\u00eda en un infierno similar a Venus.<\/p>\n<p>El estudio profundiza en el papel que desempe\u00f1a el agua superficial en el ciclo del carbono de un planeta. Este ciclo describe el modo en que el di\u00f3xido de carbono <a href=\"https:\/\/es.wired.com\/articulos\/el-gemelo-digital-de-la-tierra-se-prepara-para-anticipar-el-impacto-del-cambio-climatico\">entra y sale de la atm\u00f3sfera<\/a>, un proceso que en la Tierra ha mantenido un clima templado y estable durante millones de a\u00f1os. El agua act\u00faa como intermediaria clave: permite que el CO2 se disuelva, forma precipitaciones \u00e1cidas que erosionan las rocas y facilita que el carbono quede atrapado en forma de carbonatos en el suelo y los oc\u00e9anos. Cuando los niveles de CO2 aumentan y la temperatura sube, las lluvias se intensifican y aceleran esta captura, devolviendo el sistema al equilibrio. En esencia, el agua superficial funciona como un termostato natural del planeta.<\/p>\n<figure class=\"AssetEmbedWrapper-iJvQnD cOWUYC asset-embed\">\n<div class=\"AssetEmbedAssetContainer-fnduJP iaVSwI asset-embed__asset-container\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset responsive-image\"><img decoding=\"async\" alt=\"Ilustraci\u00f3n de un exoplaneta orbitando cerca de su estrella madre.\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/69e28620660717d7c867196f\/master\/w_120,c_limit\/ssc2010-05b_Sm.jpg 120w, https:\/\/media.es.wired.com\/photos\/69e28620660717d7c867196f\/master\/w_240,c_limit\/ssc2010-05b_Sm.jpg 240w, https:\/\/media.es.wired.com\/photos\/69e28620660717d7c867196f\/master\/w_320,c_limit\/ssc2010-05b_Sm.jpg 320w, https:\/\/media.es.wired.com\/photos\/69e28620660717d7c867196f\/master\/w_640,c_limit\/ssc2010-05b_Sm.jpg 640w, https:\/\/media.es.wired.com\/photos\/69e28620660717d7c867196f\/master\/w_960,c_limit\/ssc2010-05b_Sm.jpg 960w, https:\/\/media.es.wired.com\/photos\/69e28620660717d7c867196f\/master\/w_1280,c_limit\/ssc2010-05b_Sm.jpg 1280w, https:\/\/media.es.wired.com\/photos\/69e28620660717d7c867196f\/master\/w_1600,c_limit\/ssc2010-05b_Sm.jpg 1600w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/69e28620660717d7c867196f\/master\/w_1600%2Cc_limit\/ssc2010-05b_Sm.jpg\"><\/picture><\/span><\/div>\n<div class=\"CaptionWrapper-bpPcvW iDPSlt caption AssetEmbedCaption-eZIMNW gMgneI asset-embed__caption\" data-testid=\"caption-wrapper\" readability=\"6.5\"><span class=\"BaseText-fEwdHD CaptionText-cQpRdU kRTNAB hbiMYj caption__text\" readability=\"28\"><\/p>\n<p>La proporci\u00f3n de agua en la superficie de un planeta es casi tan importante como su posici\u00f3n con respecto a su estrella.<\/p>\n<p><\/span><span class=\"BaseText-fEwdHD CaptionCredit-cUgOGk iQbGEh hRFzlA caption__credit\">NASA<\/span><\/div>\n<\/figure>\n<p>Los autores desarrollaron un modelo que calcula, paso a paso, si un planeta puede sostener un equilibrio entre el di\u00f3xido de carbono que los volcanes liberan a la atm\u00f3sfera y el que se extrae de ella mediante la meteorizaci\u00f3n. A partir de ese modelo, simularon mundos hipot\u00e9ticos con distintas proporciones de agua superficial, desde planetas casi \u00e1ridos hasta aquellos completamente cubiertos por oc\u00e9anos profundos.<\/p>\n<p>Los resultados revelaron tres reg\u00edmenes clim\u00e1ticos claramente diferenciados seg\u00fan la cantidad de agua disponible. Cuando un planeta posee menos del 20% del agua oce\u00e1nica terrestre, las precipitaciones son insuficientes para sostener la meteorizaci\u00f3n: el CO2 volc\u00e1nico se acumula sin contrapeso, la temperatura aumenta de forma progresiva y el clima deriva hacia un estado de calentamiento irreversible. Entre el 20% y el 50%, el ciclo puede operar, pero el sistema es fr\u00e1gil y vulnerable a perturbaciones externas como variaciones en <a href=\"https:\/\/es.wired.com\/articulos\/reverdecimiento-del-artico-se-expande-en-alaska-consecuencias\">el albedo<\/a>, la actividad volc\u00e1nica o la insolaci\u00f3n. Solo por encima del 50% el ciclo del carbono alcanza la estabilidad robusta que, en la Tierra, ha hecho posible el desarrollo y mantenimiento de la vida<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"17.400921658986\">\n<div class=\"ContentCardEmbedImage-bqahne fjmzkP content-card-embed__image\" data-testid=\"ContentCardEmbedImage\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj responsive-image\"><img decoding=\"async\" alt=\"planeta volcanico\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/693b20c81250e69079d6db56\/master\/w_120,c_limit\/GettyImages-1465825286.jpg 120w, https:\/\/media.es.wired.com\/photos\/693b20c81250e69079d6db56\/master\/w_240,c_limit\/GettyImages-1465825286.jpg 240w, https:\/\/media.es.wired.com\/photos\/693b20c81250e69079d6db56\/master\/w_320,c_limit\/GettyImages-1465825286.jpg 320w, https:\/\/media.es.wired.com\/photos\/693b20c81250e69079d6db56\/master\/w_640,c_limit\/GettyImages-1465825286.jpg 640w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/693b20c81250e69079d6db56\/master\/w_775%2Cc_limit\/GettyImages-1465825286.jpg\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"18.488479262673\">\n<div class=\"BaseText-fEwdHD ContentCardEmbedHed-kDKGDs fUtEc dlHXUJ content-card-embed__hed\" data-testid=\"ContentCardEmbedHed\"><a class=\"BaseLink-haTOKm ContentCardEmbedHedLink-iBZsco gAoKdC hhUFQU content-card-embed__hed-link link\" href=\"https:\/\/es.wired.com\/articulos\/este-planeta-infernal-sorprende-a-los-cientificos-oceanos-de-magma-y-tenia-oculta-su-atmosfera\" data-testid=\"ContentCardEmbedHedLink\">Este planeta infernal sorprende a los cient\u00edficos: oc\u00e9anos de magma y ten\u00eda oculta su atm\u00f3sfera<\/a><\/div>\n<p>El James Webb revela indicios de una atm\u00f3sfera en TOI\u2011561b, una supertierra volc\u00e1nica que orbita en solo 11 horas.<\/p>\n<\/div>\n<\/div>\n<hr>\n<h2>No todos los planetas en \u00e1reas habitables son viables<\/h2>\n<p>Uno de los principales objetivos en <a href=\"https:\/\/es.wired.com\/articulos\/como-encuentran-los-astronomos-planetas-en-otros-sistemas-solares\">la b\u00fasqueda de exoplanetas<\/a> es identificar mundos templados capaces de albergar agua l\u00edquida en su superficie. Para orientar esa b\u00fasqueda, los astr\u00f3nomos recurren al concepto de zona habitable, popularmente conocida como la zona de \u00abricitos de oro\u00bb: la franja de distancia orbital donde las condiciones t\u00e9rmicas de una estrella no son ni demasiado extremas ni demasiado fr\u00edas, lo que permite que un planeta desarrolle atm\u00f3sfera y acumule agua en estado l\u00edquido, considerada condici\u00f3n indispensable para el origen de la vida. Todo planeta situado dentro de esa franja adquiere de inmediato relevancia cient\u00edfica.<\/p>\n<figure class=\"AssetEmbedWrapper-iJvQnD cOWUYC asset-embed\">\n<div class=\"AssetEmbedAssetContainer-fnduJP iaVSwI asset-embed__asset-container\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset responsive-image\"><img decoding=\"async\" alt=\"La zona habitable cambia seg\u00fan el tipo de estrella aunque siempre sigue el mismo principio un sitio ni tan clido ni tan...\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/69e2871c677068243d2c4500\/master\/w_120,c_limit\/14-111-kepler_0.jpg 120w, https:\/\/media.es.wired.com\/photos\/69e2871c677068243d2c4500\/master\/w_240,c_limit\/14-111-kepler_0.jpg 240w, https:\/\/media.es.wired.com\/photos\/69e2871c677068243d2c4500\/master\/w_320,c_limit\/14-111-kepler_0.jpg 320w, https:\/\/media.es.wired.com\/photos\/69e2871c677068243d2c4500\/master\/w_640,c_limit\/14-111-kepler_0.jpg 640w, https:\/\/media.es.wired.com\/photos\/69e2871c677068243d2c4500\/master\/w_960,c_limit\/14-111-kepler_0.jpg 960w, https:\/\/media.es.wired.com\/photos\/69e2871c677068243d2c4500\/master\/w_1280,c_limit\/14-111-kepler_0.jpg 1280w, https:\/\/media.es.wired.com\/photos\/69e2871c677068243d2c4500\/master\/w_1600,c_limit\/14-111-kepler_0.jpg 1600w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/69e2871c677068243d2c4500\/master\/w_1600%2Cc_limit\/14-111-kepler_0.jpg\"><\/picture><\/span><\/div>\n<div class=\"CaptionWrapper-bpPcvW iDPSlt caption AssetEmbedCaption-eZIMNW gMgneI asset-embed__caption\" data-testid=\"caption-wrapper\" readability=\"7\"><span class=\"BaseText-fEwdHD CaptionText-cQpRdU kRTNAB hbiMYj caption__text\" readability=\"29\"><\/p>\n<p>La zona habitable cambia seg\u00fan el tipo de estrella, aunque siempre sigue el mismo principio: un sitio ni tan c\u00e1lido ni tan frio.<\/p>\n<p><\/span><span class=\"BaseText-fEwdHD CaptionCredit-cUgOGk iQbGEh hRFzlA caption__credit\">NASA Ames\/SETI Institute\/JPL-Caltech<\/span><\/div>\n<\/figure>\n","protected":false},"excerpt":{"rendered":"<p>La literatura de ciencia ficci\u00f3n est\u00e1 repleta&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":132070,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[46],"tags":[],"class_list":["post-132069","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - 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