{"id":439,"date":"2017-06-21T12:26:00","date_gmt":"2017-06-21T10:26:00","guid":{"rendered":"https:\/\/kids.esa.int\/evidence_found_that_comets_helped_to_make_earth_s_atmosphere\/"},"modified":"2026-10-08T00:28:13","modified_gmt":"2026-10-07T22:28:13","slug":"evidence_found_that_comets_helped_to_make_earth_s_atmosphere","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/evidence_found_that_comets_helped_to_make_earth_s_atmosphere\/","title":{"rendered":"S-au descoperit dovezi care arat\u0103 c\u0103 cometele au contribuit la formarea atmosferei P\u0103m\u00e2ntului!"},"content":{"rendered":"<div class=\"lede\">\n<p>\u00cen 2016, o sond\u0103 a ESA numit\u0103 Rosetta a dus la bun sf\u00e2r\u0219it o misiune incredibil\u0103: a zburat p\u00e2n\u0103 la o comet\u0103, a studiat-o din orbit\u0103 \u0219i a trimis pe suprafa\u021ba acesteia un modul de aterizare robotizat! Apoi, au descoperit dovezi c\u0103, cu mult timp \u00een urm\u0103, cometele s-au pr\u0103bu\u0219it pe P\u0103m\u00e2nt \u0219i au contribuit la formarea atmosferei noastre!<\/p>\n<\/div>\n<p>Pentru a face aceast\u0103 descoperire important\u0103, oamenii de \u0219tiin\u021b\u0103 au trebuit s\u0103 ac\u021bioneze ca ni\u0219te detectivi. \u0218tim c\u0103 atmosfera P\u0103m\u00e2ntului con\u021bine cantit\u0103\u021bi infime dintr-un gaz numit xenon. \u00cen atmosfera noastr\u0103 exist\u0103 numeroase tipuri de xenon, fiecare fiind format \u00eentr-un mod u\u0219or diferit. Acest lucru creeaz\u0103 un fel de \u201camprent\u0103\u201d care poate fi folosit\u0103 pentru a distinge diferite amestecuri de tipuri de xenon.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1843\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/Comet_67_PChuryumov-Gerasimenko_on_15_May_2016\" 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\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/06\/comet_67_pchuryumov-gerasimenko_on_15_may_2016\/17905867-2-eng-GB\/Comet_67_PChuryumov-Gerasimenko_on_15_May_2016.jpg\" alt=\"A close-up photo of the comet\" \/><figcaption>O fotografie \u00een prim-plan a cometei<\/figcaption><\/figure>\n<p>Oamenii de \u0219tiin\u021b\u0103 au descoperit xenon \u00een atmosfera rarefiat\u0103 a lui Marte, \u00een asteroizi, pe Jupiter \u0219i \u00een particule provenite de la Soare. \u00cens\u0103 xenonul de pe P\u0103m\u00e2nt are o \u201camprent\u0103\u201d diferit\u0103 de a celorlalte! Acest lucru \u00eenseamn\u0103 c\u0103 xenonul pe care \u00eel avem aici, pe P\u0103m\u00e2nt, trebuie s\u0103 fi provenit dintr-un loc diferit fa\u021b\u0103 de xenonul din alte p\u0103r\u021bi ale Sistemului Solar.<\/p>\n<p>Xenonul de pe P\u0103m\u00e2nt este foarte vechi, iar \u00een decursul timpului compozi\u021bia sa s-a modificat. Oamenii de \u0219tiin\u021b\u0103 au folosit modele computerizate pentru a prezice cum ar fi ar\u0103tat xenonul de pe P\u0103m\u00e2nt \u00een urm\u0103 cu aproximativ patru miliarde \u0219i jum\u0103tate de ani, c\u00e2nd planeta noastr\u0103 era \u00een curs de formare. Aici revenim la sonda ESA Rosetta. C\u00e2nd a studiat cometa, ghici\u021bi ce a descoperit? Xenon cu aproape aceea\u0219i \u201camprent\u0103\u201d ca xenonul de pe P\u0103m\u00e2ntul str\u0103vechi!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/Fresh_from_Earth\" 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\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/06\/fresh_from_earth\/17898569-2-eng-GB\/Fresh_from_Earth.jpg\" alt=\"Comets could have helped to make Earth\u2019s atmosphere, billions of years ago\" \/><figcaption>Cometele ar fi putut contribui la formarea atmosferei P\u0103m\u00e2ntului, cu miliarde de ani \u00een urm\u0103<\/figcaption><\/figure>\n<p>Aceasta reprezint\u0103 o dovad\u0103 solid\u0103 c\u0103, cu mult timp \u00een urm\u0103, cometele s-au pr\u0103bu\u0219it pe P\u0103m\u00e2nt, aduc\u00e2nd cu ele xenon. \u00cens\u0103, de\u0219i xenonul cometei este similar cu cel al P\u0103m\u00e2ntului primitiv, nu este exact acela\u0219i. De fapt, dovezile descoperite de sonda Rosetta indic\u0103 faptul c\u0103 cometele au contribuit cu aproximativ 22% la xenonul str\u0103vechi al P\u0103m\u00e2ntului, \u00een timp ce restul a provenit probabil de la asteroizi.<\/p>\n<p>\u0218i dac\u0103 cometele au adus xenon, ar fi putut s\u0103 aduc\u0103 \u0219i alte lucruri? Poate c\u0103 cometele au adus aminoacizi \u2013 unul dintre ingredientele vie\u021bii!<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"1920\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/Rosetta_goes_on_an_excursion\" 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\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/www.esa.int\/var\/esa\/storage\/images\/esa_multimedia\/images\/2017\/06\/rosetta_goes_on_an_excursion\/17866860-3-eng-GB\/Rosetta_goes_on_an_excursion.png\" alt=\"Have you seen our cartoons about Rosetta?\" \/><figcaption>A\u021bi v\u0103zut desenele noastre animate despre Rosetta?<\/figcaption><\/figure>\n<p>Datorit\u0103 datelor transmise de sonda Rosetta a ESA, ne apropiem tot mai mult de r\u0103spunsul la toate aceste \u00eentreb\u0103ri \u0219i nu numai!<\/p>\n<p><b>Un fapt interesant:<\/b> Denumirea oficial\u0103 a cometei studiate de sonda Rosetta este 67P\/Churyumov-Gerasimenko. Sonda Rosetta s-a apropiat incredibil de mult de comet\u0103 pentru a colecta xenon \u2013 la doar 5 km deasupra suprafe\u021bei acesteia!<\/p>","protected":false},"excerpt":{"rendered":"<p>In 2016, an ESA probe called Rosetta completed an incredible mission: flying to a comet, studying it from orbit, and sending down a robotic lander! They then found evidence that [&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\/2017\/06\/rosetta_at_comet\/17873224-2-eng-GB\/Rosetta_at_Comet.jpg","esa_banner_description":"Rosetta and its lander have made amazing discoveries","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2017\/06\/Rosetta_at_Comet","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-439","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\/ro\/wp-json\/wp\/v2\/posts\/439","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=439"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/439\/revisions"}],"predecessor-version":[{"id":4475,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/439\/revisions\/4475"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=439"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=439"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=439"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=439"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=439"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=439"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=439"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=439"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=439"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=439"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}