{"id":1031,"date":"2005-05-02T12:13:00","date_gmt":"2005-05-02T10:13:00","guid":{"rendered":"https:\/\/kids.esa.int\/radar_to_reveal_hidden_mars\/"},"modified":"2026-10-08T00:35:05","modified_gmt":"2026-10-07T22:35:05","slug":"radar_to_reveal_hidden_mars","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/radar_to_reveal_hidden_mars\/","title":{"rendered":"Radarul va dezv\u0103lui partea ascuns\u0103 a planetei Marte"},"content":{"rendered":"<div class=\"lede\">\n<p>Un nou capitol \u00een explorarea planetei Marte este pe cale s\u0103 \u00eenceap\u0103. Dup\u0103 o lung\u0103 \u00eent\u00e2rziere, instrumentul radar MARSIS de la bordul satelitului Mars Express al ESA este pe cale s\u0103 intre \u00een ac\u021biune.<\/p>\n<\/div>\n<p>MARSIS este primul instrument conceput pentru a observa sub suprafa\u021ba ro\u0219u-portocalie a planetei Marte. Acesta func\u021bioneaz\u0103 prin emiterea de semnale radio de joas\u0103 frecven\u021b\u0103 c\u0103tre suprafa\u021b\u0103.<\/p>\n<p>Multe dintre acestea se reflect\u0103 direct \u00eenapoi de pe suprafa\u021b\u0103. \u00cens\u0103 unele semnale p\u0103trund \u00een sol \u0219i se reflect\u0103 din straturile subterane.<\/p>\n<p>Prin analiza acestor ecouri, oamenii de \u0219tiin\u021b\u0103 sper\u0103 s\u0103 descopere ghea\u021b\u0103 sau ap\u0103 subteran\u0103. Acest lucru este important, deoarece via\u021ba este, de obicei, legat\u0103 de prezen\u021ba apei.<\/p>\n<p>De asemenea, MARSIS va detecta straturile de roc\u0103 p\u00e2n\u0103 la o ad\u00e2ncime de c\u00e2\u021biva kilometri \u0219i va m\u0103sura \u00een\u0103l\u021bimea mun\u021bilor \u0219i a v\u0103ilor.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"300\" data-credit=\"Universit\u00e4t der Bundeswehr - M\u00fcnchen\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/04\/MARSIS_main_antenna2\" 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\/2004\/04\/marsis_main_antenna2\/17893314-2-eng-GB\/MARSIS_main_antenna.jpg\" alt=\"MARSIS main antenna\"><figcaption>Antena principal\u0103 MARSIS<\/figcaption><\/figure>\n<p>\u00cenainte ca acest lucru s\u0103 se poat\u0103 \u00eent\u00e2mpla, cele trei bra\u021be ale radarului, asem\u0103n\u0103toare unor tije, trebuie desf\u0103\u0219urate. Acestea ar fi trebuit s\u0103 fie eliberate \u00een aprilie 2004, dar existau unele temeri c\u0103 s-ar putea bloca sau s\u0103 se \u00eentoarc\u0103 \u00eenapoi \u0219i s\u0103 avarieze nava spa\u021bial\u0103.<\/p>\n<p>\u201cAstfel de opera\u021biuni nu pot fi demonstrate pe P\u0103m\u00e2nt\u201d, a explicat John Reddy, reprezentant al ESA. \u201cDe aceea, dac\u0103 nu pot fi testate \u00een spa\u021biu, trebuie s\u0103 ne baz\u0103m pe simul\u0103ri pe calculator.\u201d<\/p>\n<p>Dup\u0103 o analiz\u0103 atent\u0103 a riscurilor, ESA a decis s\u0103 continue experimentul. Cele dou\u0103 bra\u021be de 20 m lungime vor fi desf\u0103\u0219urate mai \u00eent\u00e2i, urm\u00e2nd ca bra\u021bul de 7 m s\u0103 fie desf\u0103\u0219urat c\u00e2teva zile mai t\u00e2rziu. Se preconizeaz\u0103 c\u0103 aceste opera\u021biuni vor avea loc \u00eentre 2 \u0219i 12 mai.<\/p>\n<p>Odat\u0103 ce instalarea va fi finalizat\u0103, MARSIS va fi supus unor teste care vor dura trei s\u0103pt\u0103m\u00e2ni. Apoi va \u00eencepe captivanta opera\u021biune de c\u0103utare cu ajutorul radarului.<\/p>","protected":false},"excerpt":{"rendered":"<p>A new chapter in the exploration of Mars is about to begin. After a long delay, the MARSIS radar instrument on board ESA\u2019s Mars Express orbiter is about to swing [&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\/2001\/08\/marsis_prospecting_for_water2\/17863678-3-eng-GB\/MARSIS_prospecting_for_water.jpg","esa_banner_description":"MARSIS prospecting for water","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/08\/MARSIS_prospecting_for_water2","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":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1031","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1031","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=1031"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1031\/revisions"}],"predecessor-version":[{"id":4806,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1031\/revisions\/4806"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=1031"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=1031"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=1031"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=1031"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=1031"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=1031"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=1031"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=1031"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=1031"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=1031"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}