{"id":443,"date":"2017-04-13T11:33:00","date_gmt":"2017-04-13T09:33:00","guid":{"rendered":"https:\/\/kids.esa.int\/two_possible_landing_sites_chosen_for_esa_s_exomars_rover\/"},"modified":"2026-10-08T00:28:16","modified_gmt":"2026-10-07T22:28:16","slug":"two_possible_landing_sites_chosen_for_esa_s_exomars_rover","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/two_possible_landing_sites_chosen_for_esa_s_exomars_rover\/","title":{"rendered":"ESA:n ExoMars-m\u00f6nkij\u00e4lle on valittu kaksi mahdollista laskeutumispaikkaa"},"content":{"rendered":"<div class=\"lede\">\n<p>Vuonna 2020 ESA:n ExoMars Rover -niminen robotti laskeutuu punaiselle planeetalle, Marsille. ExoMars Roverilla on kaksi p\u00e4\u00e4teht\u00e4v\u00e4\u00e4: Marsin pinnan alla olevan alueen tutkiminen sek\u00e4 el\u00e4m\u00e4n etsiminen. L\u00e4hetyssuunnittelijat ovat tutkineet huolellisesti Marsin karttoja p\u00e4\u00e4tt\u00e4\u00e4kseen parhaasta laskeutumispaikasta robotille. Nyt vaihtoehtoja on j\u00e4ljell\u00e4 en\u00e4\u00e4 kaksi!<\/p>\n<\/div>\n<p>Laskeutumispaikan valinta on eritt\u00e4in vaikeaa. Sen on sijaittava matalalla, ei vuoren tai tulivuoren huipulla. Tarkoituksena on antaa laskeutumisalukselle mahdollisimman paljon aikaa pudota Marsin ohuen ilmakeh\u00e4n l\u00e4pi, jotta laskuvarjot ehtiv\u00e4t hidastaa sen vauhtia ennen maahan saapumista. Laskeutumispaikalla ei my\u00f6sk\u00e4\u00e4n saa olla jyrkki\u00e4 rinteit\u00e4 tai suuria kivi\u00e4, sill\u00e4 ne voisivat tehd\u00e4 laskeutumisesta entist\u00e4 vaarallisemman.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1200\" data-credit=\"ESA\/DLR\/FU Berlin &amp; NASA MGS MOLA Science Team\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/Oxia_Planum\" 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:\/\/media.esa.int\/legacy\/web\/images\/esa_multimedia\/images\/2017\/04\/oxia_planum\/17902789-2-eng-GB\/Oxia_Planum.jpg\" alt=\"Oxia Planum\"><figcaption>Oxia Planum<\/figcaption><\/figure>\n<p>Marsiin kuuluva Oxia Planum -niminen alue n\u00e4ytt\u00e4\u00e4 eritt\u00e4in lupaavalta, ja se on valittu yhdeksi mahdollisista laskeutumispaikoista. Se sijaitsee hieman Marsin p\u00e4iv\u00e4ntasaajan pohjoispuolella. Noin 4 miljardia vuotta sitten Oxia Planum oli hyvin erilainen kuin nyky\u00e4\u00e4n. Vesijokia virtasi valtaville tasangoille. Vaikka vesi onkin jo kauan sitten kadonnut, ExoMars-m\u00f6nkij\u00e4 voisi tutkia aluetta ja etsi\u00e4 merkkej\u00e4 el\u00e4m\u00e4st\u00e4, jota siell\u00e4 saattoi tuolloin olla, sek\u00e4 tutkia mineraalikerroksia.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1500\" data-credit=\"ESA\/DLR\/FU Berlin, CC BY-SA 3.0 IGO\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/Mawrth_Vallis\" data-licence=\"CC BY-SA 3.0 IGO or 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:\/\/media.esa.int\/legacy\/web\/images\/esa_multimedia\/images\/2017\/04\/mawrth_vallis\/18248992-2-eng-GB\/Mawrth_Vallis.jpg\" alt=\"Mawrth Vallis\"><figcaption>Mawrth Vallis<\/figcaption><\/figure>\n<p>Muutaman sadan kilometrin p\u00e4\u00e4ss\u00e4 sijaitsee toinen mahdollinen laskeutumispaikka, nimelt\u00e4\u00e4n Mawrth Vallis. Alueen uskotaan olleen aikoinaan hyvin kosteaa pitk\u00e4n ajan, ehk\u00e4 jopa satojen miljoonien vuosien ajan. Tuolloin siell\u00e4 olleet vesilammikot ovat saattaneet olla koti outoille el\u00e4m\u00e4nmuodoille.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"980\" data-credit=\"ESA\/CartoDB\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/04\/ExoMars_landing_site_candidates\" 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:\/\/media.esa.int\/legacy\/web\/images\/esa_multimedia\/images\/2017\/04\/exomars_landing_site_candidates\/18247475-2-eng-GB\/ExoMars_landing_site_candidates.png\" alt=\"ExoMars landing site candidates\"><figcaption>ExoMars-laskeutumispaikkakandidaatit<\/figcaption><\/figure>\n<p>Lopullinen p\u00e4\u00e4t\u00f6s siit\u00e4, mihin laskeutumispaikkaan pyrit\u00e4\u00e4n, tehd\u00e4\u00e4n vuosi ennen kuin ExoMars-m\u00f6nkij\u00e4 laskeutuu pinnalle. Sill\u00e4 v\u00e4lin tutkijat ker\u00e4\u00e4v\u00e4t ahkerasti lis\u00e4tietoja valinnan helpottamiseksi. He selvitt\u00e4v\u00e4t, mill\u00e4 alueella on parhaat paikat, joissa ExoMars-m\u00f6nkij\u00e4 voi porata ja tutkia pinnan alla olevia kerroksia, ja mill\u00e4 alueella on tasaisin pinta, mik\u00e4 lis\u00e4\u00e4 onnistuneen laskeutumisen mahdollisuuksia.<\/p>\n<p>Mik\u00e4 laskeutumispaikka valitaan mielest\u00e4si: Oxia Planum vai Mawrth Vallis?<\/p>\n<p><b>Mielenkiintoinen fakta:<\/b> ExoMars-missio on ESA:n ja Ven\u00e4j\u00e4n avaruusj\u00e4rjest\u00f6n Roscosmosin yhteinen hanke.<\/p>","protected":false},"excerpt":{"rendered":"<p>In the year 2020 an ESA robot called the ExoMars Rover will land on the red planet Mars. The ExoMars Rover will have two main tasks: exploring just below the [&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:\/\/media.esa.int\/legacy\/web\/images\/esa_multimedia\/images\/2017\/03\/exomars_rover4\/17909752-2-eng-GB\/ExoMars_rover.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/03\/ExoMars_rover4","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":[62,10,13],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-443","post","type-post","status-publish","format-standard","hentry","category-exploration","category-learn","category-life-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/443","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/comments?post=443"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/443\/revisions"}],"predecessor-version":[{"id":4479,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/443\/revisions\/4479"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=443"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=443"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=443"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=443"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=443"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=443"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=443"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=443"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}