{"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\/ro\/scientists_find_an_extrasolar_sauna\/","title":{"rendered":"Oamenii de \u0219tiin\u021b\u0103 descoper\u0103 o saun\u0103 extrasolar\u0103"},"content":{"rendered":"<div class=\"lede\">\n<p>Un extraterestru care ar trece pe l\u00e2ng\u0103 P\u0103m\u00e2nt ar fi greu s\u0103 nu observe c\u0103 planeta noastr\u0103 albastr\u0103 este acoperit\u0103 \u00een mare parte de oceane. Cu toate acestea, P\u0103m\u00e2ntul este singura lume acoperit\u0103 de ap\u0103 din Sistemul nostru Solar. Av\u00e2nd \u00een vedere c\u0103 planetele cu ap\u0103 par s\u0103 fie destul de rare, nu este de mirare c\u0103 oamenii de \u0219tiin\u021b\u0103 sunt entuziasma\u021bi de prima descoperire a unei atmosfere bogate \u00een ap\u0103 pe o planet\u0103 care orbiteaz\u0103 \u00een jurul unei stele \u00eendep\u0103rtate.<\/p>\n<\/div>\n<p>Se cunosc peste 200 dintre aceste planete \u2018extrasolare\u2019, dar foarte pu\u021bine au fost fotografiate sau observate direct. Din fericire, unele dintre aceste planete \u2018invizibile\u2019 pot fi detectate atunci c\u00e2nd tranziteaz\u0103, adic\u0103 trec \u00een fa\u021ba stelelor lor. A\u0219a a fost descoperit\u0103 \u00een 2005 gigantul gazos cunoscut sub numele de HD 189733b. Aceast\u0103 lume asem\u0103n\u0103toare lui Jupiter a provocat o u\u0219oar\u0103 diminuare a luminii emise de steaua sa mam\u0103.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"ESA (C.Carreau)\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/07\/Transiting_exoplanet_HD_189733b_in_the_infrared2\" 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\/2007\/07\/transiting_exoplanet_hd_189733b_in_the_infrared2\/17867266-3-eng-GB\/Transiting_exoplanet_HD_189733b_in_the_infrared.jpg\" alt=\"Transiting exoplanet HD 189733b, in the infrared\"><figcaption>Exoplaneta HD 189733b \u00een tranzit, \u00een infraro\u0219u<\/figcaption><\/figure>\n<p>De atunci, oamenii de \u0219tiin\u021b\u0103 europeni \u0219i americani au efectuat studii suplimentare asupra planetei HD 189733b. Folosind Telescopul Spa\u021bial Spitzer al NASA, ace\u0219tia au m\u0103surat lumina infraro\u0219ie emis\u0103 de stea. Pe m\u0103sur\u0103 ce planeta se deplasa \u00eencet pe discul stelei, atmosfera sa exterioar\u0103 bloca o lungime de und\u0103 a luminii mai mult dec\u00e2t celelalte lungimi de und\u0103. Singura explica\u021bie pentru acest model de diminuare a luminozit\u0103\u021bii este prezen\u021ba vaporilor de ap\u0103 \u00een atmosfera planetei.<\/p>\n<p>Din p\u0103cate, planeta gigantic\u0103 nu are o suprafa\u021b\u0103 st\u00e2ncoas\u0103 pe care s\u0103 se poat\u0103 forma oceane. De asemenea, orbiteaz\u0103 extrem de aproape de steaua sa. Cu o temperatur\u0103 atmosferic\u0103 de peste 700 \u00b0C, este mult prea fierbinte pentru ca ploaia s\u0103 cad\u0103. Planeta HD 189733b, cu atmosfera plin\u0103 de aburi, este aproape sigur lipsit\u0103 de via\u021b\u0103. Cu toate acestea, aceste rezultate trezesc speran\u021be c\u0103, \u00eentr-un viitor nu prea \u00eendep\u0103rtat, se vor descoperi planete asem\u0103n\u0103toare P\u0103m\u00e2ntului, cu ap\u0103.<\/p>","protected":false},"excerpt":{"rendered":"<p>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 [&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\/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\/ro\/wp-json\/wp\/v2\/posts\/1060","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=1060"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1060\/revisions"}],"predecessor-version":[{"id":4828,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1060\/revisions\/4828"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=1060"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=1060"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=1060"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=1060"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=1060"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=1060"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=1060"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=1060"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=1060"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=1060"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}