{"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\/sl\/radar_to_reveal_hidden_mars\/","title":{"rendered":"Radar za odkrivanje skritega Marsa"},"content":{"rendered":"
\n

Za\u010denja se novo poglavje v raziskovanju Marsa. Po dolgem odlogu bo radarski instrument MARSIS na krovu orbiterja Mars Express agencije ESA kmalu za\u010del delovati.<\/p>\n<\/div>\n

MARSIS je prvi instrument, zasnovan za opazovanje pod oran\u017eno-rde\u010do povr\u0161ino Marsa. Deluje tako, da po\u0161ilja nizkofrekven\u010dne radijske signale navzdol.<\/p>\n

Mnogi od teh se takoj odbijajo od povr\u0161ine. Nekateri signali pa prodrejo skozi tla in se odbijajo od podzemnih plasti.<\/p>\n

Z analizo teh odmevov znanstveniki upajo, da bodo odkrili podzemni led ali vodo. To je pomembno, saj je \u017eivljenje ponavadi povezano s prisotnostjo vode.<\/p>\n

MARSIS bo zaznal tudi kamnite plasti do globine nekaj kilometrov ter izmeril vi\u0161ino gora in dolin.<\/p>\n

\"MARSIS
Glavna antena MARSIS<\/figcaption><\/figure>\n

Preden se to lahko zgodi, je treba raztegniti tri palico podobne iztegnjene roke radarja. Te bi morale biti spro\u0161\u010dene \u017ee aprila 2004, vendar so obstajale nekatere skrbi, da bi se lahko zataknile ali odsko\u010dile nazaj in po\u0161kodovale vesoljsko plovilo.<\/p>\n

\u201cTak\u0161nih postavitve ni mogo\u010de prikazati na Zemlji,\u201d je pojasnil John Reddy iz ESA. \u201cZato se moramo, \u010de jih ni mogo\u010de preizkusiti v vesolju, zana\u0161ati na ra\u010dunalni\u0161ke simulacije.\u201d<\/p>\n

Po temeljiti analizi tveganj se je ESA odlo\u010dila, da bo poskus izvedla. Najprej bosta raztegnjena dva 20-metrska iztegnjena dela, nekaj dni kasneje pa \u0161e 7-metrski iztegnjeni del. To naj bi se zgodilo med 2. in 12. majem.<\/p>\n

Ko bo namestitev zaklju\u010dena, bo MARSIS prestal tri tedne testiranja. Nato se bo za\u010delo zanimivo iskanje z radarjem.<\/p>","protected":false},"excerpt":{"rendered":"

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 […]<\/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\/sl\/wp-json\/wp\/v2\/posts\/1031","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=1031"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/1031\/revisions"}],"predecessor-version":[{"id":4806,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/1031\/revisions\/4806"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=1031"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=1031"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=1031"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=1031"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=1031"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=1031"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=1031"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=1031"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=1031"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=1031"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}