{"id":1060,"date":"2007-07-12T13:03:00","date_gmt":"2007-07-12T11:03:00","guid":{"rendered":"https:\/\/kids.esa.int\/scientists_find_an_extrasolar_sauna\/"},"modified":"2026-10-08T00:35:27","modified_gmt":"2026-10-07T22:35:27","slug":"scientists_find_an_extrasolar_sauna","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/sl\/scientists_find_an_extrasolar_sauna\/","title":{"rendered":"Znanstveniki so odkrili zunajson\u010dno savno"},"content":{"rendered":"
\n

Tujec, ki bi letel mimo Zemlje, bi te\u017eko spregledal, da je na\u0161 modri planet v veliki meri prekrit z oceani. Vendar je Zemlja edini svet v na\u0161em Oson\u010dju, ki ga prekriva voda. Ker se zdi, da so vla\u017eni planeti precej redki, ni presenetljivo, da so znanstveniki navdu\u0161eni nad prvim odkritjem atmosfere, bogate z vodo, na planetu, ki kro\u017ei okoli oddaljene zvezde.<\/p>\n<\/div>\n

Znano je ve\u010d kot 200 takih \u2018izvenoson\u010dnih\u2019 planetov, vendar je bilo le malo od njih posnetih ali neposredno opazovanih. Na sre\u010do je mogo\u010de nekatere od teh \u2018nevidnih\u2019 planetov zaznati, ko prehajajo ali se pomikajo pred svojimi zvezdami. Tako je bil leta 2005 odkrit plinski velikan, znan kot HD 189733b. Ta svet, podoben Jupitru, je povzro\u010dil rahlo zatemnitve svetlobe svoje mati\u010dne zvezde.<\/p>\n

\"Transiting
Eksoplanet HD 189733b v prehodu, v infrarde\u010dem spektru<\/figcaption><\/figure>\n

Od takrat so evropski in ameri\u0161ki znanstveniki opravili nadaljnje raziskave planeta HD 189733b. Z uporabo vesoljskega teleskopa Spitzer agencije NASA so izmerili infrarde\u010de sevanje, ki prihaja iz zvezde. Ko se je planet po\u010dasi premikal \u010dez zvezdni disk, je njegova zunanja atmosfera eno valovno dol\u017eino svetlobe blokirala bolj kot druge valovne dol\u017eine. Edina razlaga za ta vzorec zatemnitve je prisotnost vodne pare v planetovi atmosferi.<\/p>\n

Na \u017ealost ta orja\u0161ki planet nima kamnite povr\u0161ine, na kateri bi se lahko oblikovali oceani. Poleg tega kro\u017ei izredno blizu svoje zvezde. Zaradi temperature v atmosferi, ki presega 700 \u00b0C, je preve\u010d vro\u010de, da bi padal de\u017e. Na vro\u010dem planetu HD 189733b skoraj zagotovo ni \u017eivljenja. Vendar ti rezultati vzbujajo upanje, da bomo v ne preve\u010d daljni prihodnosti na\u0161li vodne, Zemlji podobne planete.<\/p>","protected":false},"excerpt":{"rendered":"

An alien flying past the Earth could hardly fail to notice that our blue planet is largely covered by oceans. However, Earth is the only water-covered world in our Solar […]<\/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\/07\/transiting_exoplanet_hd_189733b2\/17903269-2-eng-GB\/Transiting_exoplanet_HD_189733b.jpg","esa_banner_description":"Transiting exoplanet HD 189733b","esa_banner_credit":"ESA - C.Carreau","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/07\/Transiting_exoplanet_HD_189733b2","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":[14,10,13],"tags":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1060","post","type-post","status-publish","format-standard","hentry","category-are-we-alone","category-learn","category-life-in-space"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/1060","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=1060"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/1060\/revisions"}],"predecessor-version":[{"id":4828,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/1060\/revisions\/4828"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=1060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=1060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=1060"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=1060"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=1060"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=1060"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=1060"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=1060"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=1060"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=1060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}