{"id":532,"date":"2015-06-29T09:48:00","date_gmt":"2015-06-29T07:48:00","guid":{"rendered":"https:\/\/kids.esa.int\/the_adventure_continues_for_rosetta\/"},"modified":"2026-10-08T00:29:18","modified_gmt":"2026-10-07T22:29:18","slug":"the_adventure_continues_for_rosetta","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/fi\/the_adventure_continues_for_rosetta\/","title":{"rendered":"Rosettan seikkailu jatkuu"},"content":{"rendered":"<div class=\"lede\">\n<p>Euroopan avaruusj\u00e4rjest\u00f6 on eritt\u00e4in iloinen voidessaan ilmoittaa, ett\u00e4 Rosetta-avaruusluotaimen seikkailu jatkuu syyskuuhun 2016 asti. Se on per\u00e4ti yhdeks\u00e4n kuukautta pidemp\u00e4\u00e4n kuin alun perin oli suunniteltu!<\/p>\n<\/div>\n<p>Rosetta aloitti seikkailunsa vuonna 2004, kun se laukaistiin avaruuteen etsim\u00e4\u00e4n 67P\/Churyumov-Gerasimenko-nimist\u00e4 komeettaa. Kymmenen pitk\u00e4n vuoden ajan pieni avaruusalus lensi aurinkokunnan ymp\u00e4ri komeettaa jahdaten, ennen kuin se lopulta saavutti m\u00e4\u00e4r\u00e4np\u00e4\u00e4ns\u00e4 viime vuoden elokuussa.<\/p>\n<p>Mutta Rosettan teht\u00e4v\u00e4 ei p\u00e4\u00e4ttynyt siihen. Itse asiassa se oli vasta alkanut! Rosettan ensimm\u00e4isen\u00e4 teht\u00e4v\u00e4n\u00e4 oli auttaa sen mukana kuljettamaa pient\u00e4 luotainta, Philaeta, laskeutumaan turvallisesti komeetan pinnalle. Sen seuraava teht\u00e4v\u00e4 on seurata komeettaa sen kiert\u00e4ess\u00e4 Aurinkoa.<\/p>\n<p>Rosetta tutkii erityisesti, miten komeetta muuttuu saavuttaessaan perihelionin (lausutaan Peri-HE-lee-on). T\u00e4m\u00e4 on se kohta komeetan kiertoradalla, jossa se on l\u00e4himp\u00e4n\u00e4 Aurinkoa (ja siit\u00e4 tulee todenn\u00e4k\u00f6isesti eritt\u00e4in mielenkiintoista!).<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1024\" data-credit=\"ESA\/Rosetta\/NavCam \u2013 CC BY-SA IGO 3.0\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2015\/06\/Comet_67_P_on_5_June_2015\" 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\/2015\/06\/comet_67_p_on_5_june_2015\/17898643-2-eng-GB\/Comet_67_P_on_5_June_2015.jpg\" alt=\"Comet 67\/P on 5 June 2015\"><figcaption>Komeetta 67\/P 5. kes\u00e4kuuta 2015<\/figcaption><\/figure>\n<p>Komeetat ovat valtavia, likaisia lumipalloja, jotka ovat per\u00e4isin aurinkokuntamme kylm\u00e4st\u00e4 ulkoreunasta. Kun ne l\u00e4hestyv\u00e4t Auringon l\u00e4mp\u00f6\u00e4, komeetan pinnan l\u00e4hell\u00e4 oleva j\u00e4\u00e4materiaali kiehuu pois, aivan kuin h\u00f6yry, joka nousee vedenkeittimest\u00e4. N\u00e4in komeetoille muodostuu ne upeat \u201ch\u00e4nn\u00e4t\u201d, jotka n\u00e4emme niiden liikkumassa y\u00f6taivaalla.<\/p>\n<p>Rosettan teht\u00e4v\u00e4n jatkamisen ansiosta avaruusluotain p\u00e4\u00e4see nyt tutkimaan komeetta 67P:t\u00e4 sen ohittaessa perihelin ja sen j\u00e4lkeen. T\u00e4m\u00e4 kattava \u201cennen ja j\u00e4lkeen\u201d -n\u00e4kym\u00e4 tapahtumasta tarjoaa runsaasti uutta tietoa siit\u00e4, miten komeetat muuttuvat ajan my\u00f6t\u00e4 \u2013 etenkin silloin, kun ne ohittavat Auringon l\u00e4helt\u00e4.<\/p>\n<p>Mutta mit\u00e4 tapahtuu syyskuussa 2016, kun Rosettan matka on vihdoin ohi? No, tuntuu aivan luonnolliselta, ett\u00e4 oltuaan niin monta kuukautta komeetta 67P:n seurassa Rosetta p\u00e4\u00e4tt\u00e4\u00e4 teht\u00e4v\u00e4ns\u00e4 laskeutumalla sen pinnalle. Sen j\u00e4lkeen ne voivat jatkaa matkaansa yhdess\u00e4 aurinkokunnan ymp\u00e4ri.<\/p>\n<p><b>Mielenkiintoinen fakta:<\/b> N\u00e4iden yhdeks\u00e4n ylim\u00e4\u00e4r\u00e4isen kuukauden aikana Rosettalla on my\u00f6s mahdollisuus tarjota meille tarkka katsaus Philae-luotaimesta, joka laskeutui komeetan pinnalle.<\/p>","protected":false},"excerpt":{"rendered":"<p>The European Space Agency is very happy to announce that the adventure will continue for the Rosetta spacecraft until September 2016. That\u2019s nine whole months longer than originally planned! Rosetta [&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\/2015\/06\/rosetta_approaching_comet2\/17868081-3-eng-GB\/Rosetta_approaching_comet.jpg","esa_banner_description":"Rosetta approaching comet","esa_banner_credit":"Spacecraft: ESA\/ATG medialab; Comet image: ESA\/Rosetta\/NAVCAM","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2015\/06\/Rosetta_approaching_comet2","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":[26],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-532","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/532","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=532"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/532\/revisions"}],"predecessor-version":[{"id":4535,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/posts\/532\/revisions\/4535"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/media?parent=532"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/categories?post=532"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/tags?post=532"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/panel?post=532"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/language?post=532"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/age?post=532"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/duration?post=532"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/resource_type?post=532"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/audience?post=532"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/fi\/wp-json\/wp\/v2\/wf_post_folders?post=532"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}