{"id":887,"date":"2007-03-16T12:23:00","date_gmt":"2007-03-16T11:23:00","guid":{"rendered":"https:\/\/kids.esa.int\/radar_s_icy_echoes_on_mars\/"},"modified":"2026-10-08T00:33:23","modified_gmt":"2026-10-07T22:33:23","slug":"radar_s_icy_echoes_on_mars","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/es\/radar_s_icy_echoes_on_mars\/","title":{"rendered":"Ecos del hielo de Marte en el radar"},"content":{"rendered":"<div class=\"lede\">\n<p>Se suele pensar que Marte es un mundo \u00e1rido cubierto de desiertos. Sin embargo, al igual que la Tierra, el planeta rojo tiene dos casquetes helados en los polos norte y sur. Por si alguna vez se desplaza gente a vivir en Marte, es importante saber cu\u00e1nta agua congelada contienen esas capas de hielo. Eso es exactamente lo que est\u00e1 estudiando el instrumento MARSIS que lleva a bordo la sonda Mars Express, de la ESA.<\/p>\n<\/div>\n<p>Para poder medir el grosor de la capa helada del sur, el radar env\u00eda se\u00f1ales invisibles a la superficie y registra los ecos. De ese modo, el radar puede \"ver\" a trav\u00e9s de las capas hasta llegar al fondo del hielo. Se han realizado m\u00e1s de 300 de esos \u2018cortes\u2019 a trav\u00e9s de los dep\u00f3sitos de hielo y polvo que recubren el polo.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"2369\" data-credit=\"NASA\/JPL\/ASI\/ESA\/Univ. of Rome\/MOLA Science Team\/USGS\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/03\/Thickness_of_Mars_South_Polar_Layered_Deposits2\" data-licence=\"ESA Standard Licence\" data-licence-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Terms_and_conditions_of_use_of_images_and_videos_available_on_the_esa_website\"><img decoding=\"async\" loading=\"lazy\" style=\"max-width:100%;height:auto\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2007\/03\/thickness_of_mars_south_polar_layered_deposits2\/17892316-2-eng-GB\/Thickness_of_Mars_South_Polar_Layered_Deposits.jpg\" alt=\"Thickness of Mars&#x27; South Polar Layered Deposits\"><figcaption>Espesor de los dep\u00f3sitos estratificados del polo sur de Marte<\/figcaption><\/figure>\n<p>Ahora sabemos que el casquete sur tiene un grosor de 3,7 km. Si todo el hielo se derritiera, el planeta entero quedar\u00eda cubierto por un oc\u00e9ano de unos 11 metros de profundidad. Sin embargo, el peso de esa enorme capa de hielo no ha logrado hundir el lecho rocoso, se\u00f1al de que es m\u00e1s r\u00edgido que la corteza terrestre.<\/p>\n<p>Los estudios que se llevan a cabo en el casquete del polo norte han demostrado que tiene aproximadamente 1,8 km de espesor. Al parecer, las delgadas capas de agua helada y polvo de los dos polos est\u00e1n originadas por algunos cambios clim\u00e1ticos estacionales y otros prolongados. Si bien los casquetes polares contienen la mayor parte del agua conocida del Marte actual, hay otros lugares en el planeta que pueden haber contado con humedad suficiente en un pasado lejano como para sustentar la vida.<\/p>","protected":false},"excerpt":{"rendered":"<p>Mars is often regarded as an arid world covered by deserts. However, like Earth, the Red Planet has two large ice caps at its north and south poles. If people [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"esa_banner_image":"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2007\/03\/bright_lower_echo_from_mars_south-polar_layered_deposits2\/17901975-2-eng-GB\/Bright_lower_echo_from_Mars_south-polar_layered_deposits.jpg","esa_banner_description":"Bright lower echo from Mars\u2019 south-polar layered deposits","esa_banner_credit":"NASA\/JPL\/ASI\/ESA\/Univ. of Rome\/MOLA Science Team","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/03\/Bright_lower_echo_from_Mars_south-polar_layered_deposits2","esa_external_url":"","esa_external_new_window":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":true},"categories":[10,11,12],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-887","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts\/887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/comments?post=887"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts\/887\/revisions"}],"predecessor-version":[{"id":4723,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/posts\/887\/revisions\/4723"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/media?parent=887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/categories?post=887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/tags?post=887"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/panel?post=887"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/language?post=887"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/age?post=887"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/duration?post=887"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/resource_type?post=887"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/audience?post=887"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/es\/wp-json\/wp\/v2\/wf_post_folders?post=887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}