{"id":1096,"date":"2007-10-19T13:43:00","date_gmt":"2007-10-19T11:43:00","guid":{"rendered":"https:\/\/kids.esa.int\/herschel_esa_s_cosmic_heat_seeker\/"},"modified":"2026-10-08T00:35:58","modified_gmt":"2026-10-07T22:35:58","slug":"herschel_esa_s_cosmic_heat_seeker","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/herschel_esa_s_cosmic_heat_seeker\/","title":{"rendered":"Herschel: Detectorul de c\u0103ldur\u0103 cosmic\u0103 al ESA"},"content":{"rendered":"
\n

\u00cen vara anului 2008, dou\u0103 dintre cele mai sensibile observatoare spa\u021biale lansate vreodat\u0103 vor decola de la Kourou, \u00een Guyana Francez\u0103. La bordul rachetei Ariane 5 se vor afla Herschel, cel mai puternic telescop spa\u021bial cu detectare termic\u0103 din lume, \u0219i Planck, care va studia radia\u021bia slab\u0103 care a umplut Universul imediat dup\u0103 Big Bang.<\/p>\n<\/div>\n

Totul la Observatorul spa\u021bial Herschel al ESA este de dimensiuni impresionante. Satelitul are o \u00een\u0103l\u021bime de aproximativ 7 metri \u0219i o l\u0103\u021bime de 4,3 metri, cu o mas\u0103 de 3,25 tone. Telescopul s\u0103u are o oglind\u0103 principal\u0103 cu un diametru de 3,5 metri, cea mai mare construit\u0103 vreodat\u0103 pentru o nav\u0103 spa\u021bial\u0103 \u0219tiin\u021bific\u0103.<\/p>\n

Observatorul poart\u0103 numele unui alt gigant al \u0219tiin\u021bei, astronomul \u0219i muzicianul german William Herschel. \u00cen 1800, Herschel folosea o prism\u0103 de sticl\u0103 pentru a descompune lumina alb\u0103 \u00eentr-un curcubeu de culori. Spre surprinderea sa, un termometru a\u0219ezat l\u00e2ng\u0103 fasciculul de lumin\u0103 ro\u0219ie a indicat o cre\u0219tere a temperaturii. Herschel descoperise lumina invizibil\u0103 emis\u0103 de Soare, pe care oamenii de \u0219tiin\u021b\u0103 o numesc \u201cradia\u021bie infraro\u0219ie\u201d. De obicei, noi o numim pur \u0219i simplu \u201cc\u0103ldur\u0103\u201d.<\/p>\n

Herschel va fi amplasat la o distan\u021b\u0103 de 1,5 milioane de kilometri, suficient de departe pentru a evita problemele cauzate de radia\u021bia infraro\u0219ie provenit\u0103 de la P\u0103m\u00e2nt, care ar putea perturba observa\u021biile. Cele trei instrumente ale sale vor fi r\u0103cite cu heliu lichid, astfel \u00eenc\u00e2t temperatura lor s\u0103 se apropie de zero absolut (-273 \u00b0C).<\/p>\n

Herschel va fi utilizat pentru a studia Universul \u2018rece\u2019. \u2018Ochii\u2019 s\u0103i super-reci vor vedea dincolo de norii de praf pentru a studia regiunile de formare a stelelor, centrele galactice \u0219i planetele ascunse. Mai presus de toate, misiunea va \u00eencerca s\u0103 afle cum s-au format galaxiile \u0219i stelele \u00een Universul timpuriu.<\/p>","protected":false},"excerpt":{"rendered":"

In the summer of 2008, two of the most sensitive space observatories ever launched will lift off from Kourou in French Guiana. On board the Ariane 5 rocket will be […]<\/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\/2007\/09\/sun_earth_and_the_spacecraft_are_aligned2\/17892130-2-eng-GB\/Sun_Earth_and_the_spacecraft_are_aligned.jpg","esa_banner_description":"","esa_banner_credit":"ESA\/AOES Medialab","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2007\/09\/Sun_Earth_and_the_spacecraft_are_aligned2","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":[10,11,21],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1096","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-stars-and-galaxies","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1096","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=1096"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1096\/revisions"}],"predecessor-version":[{"id":2239,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1096\/revisions\/2239"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=1096"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=1096"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=1096"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=1096"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=1096"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=1096"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=1096"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=1096"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=1096"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=1096"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}