{"id":1133,"date":"2004-11-16T08:14:00","date_gmt":"2004-11-16T07:14:00","guid":{"rendered":"https:\/\/kids.esa.int\/planets_and_moons_life_on_earth\/"},"modified":"2026-10-08T00:36:23","modified_gmt":"2026-10-07T22:36:23","slug":"planets_and_moons_life_on_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/ro\/planets_and_moons_life_on_earth\/","title":{"rendered":"Via\u021ba pe P\u0103m\u00e2nt"},"content":{"rendered":"
\n

Studiile asupra fosilelor din roci vechi ne arat\u0103 c\u0103 via\u021ba a ap\u0103rut probabil \u00een urm\u0103 cu aproximativ 4 miliarde de ani, c\u00e2nd P\u0103m\u00e2ntul era \u00eenc\u0103 foarte t\u00e2n\u0103r. Nimeni nu \u0219tie cum a ap\u0103rut via\u021ba pe P\u0103m\u00e2nt. Majoritatea oamenilor de \u0219tiin\u021b\u0103 consider\u0103 c\u0103 aceasta a ap\u0103rut \u00een ap\u0103 lichid\u0103. Dar oare acest lucru s-a \u00eent\u00e2mplat \u00een b\u0103l\u021bi de la suprafa\u021b\u0103, sub p\u0103m\u00e2nt sau pe fundul oceanelor, unde activitatea vulcanic\u0103 formeaz\u0103 izvoare termale?<\/p>\n<\/div>\n

Experimentele arat\u0103 c\u0103 elementele chimice constitutive ale vie\u021bii se pot forma at\u00e2t \u00een spa\u021biu, c\u00e2t \u0219i pe P\u0103m\u00e2nt. Multe dintre ele trebuie s\u0103 fi ajuns pe P\u0103m\u00e2nt odat\u0103 cu c\u0103derea meteori\u021bilor \u0219i a cometelor. \u00centr-un fel sau altul, aceste substan\u021be chimice \u2018organice\u2019 simple s-au combinat pentru a forma molecule mai complexe. Apoi au \u00eenceput s\u0103 se reproduc\u0103 \u0219i s\u0103 se dezvolte.<\/p>\n

\"Dry
P\u0103m\u00e2nt uscat<\/figcaption><\/figure>\n

Ceea ce \u0219tim cu siguran\u021b\u0103 este c\u0103 \u2013 odat\u0103 ce \u00ee\u0219i \u00eencepe existen\u021ba \u2013 via\u021ba este incredibil de dur\u0103. Au fost descoperite bacterii vii \u00een Antarctica \u00eenghe\u021bat\u0103, \u00een ap\u0103 clocotit\u0103 \u0219i \u00een interiorul rocilor, la ad\u00e2ncimi de p\u00e2n\u0103 la cinci kilometri sub p\u0103m\u00e2nt. \u0218tim, de asemenea, c\u0103 astfel de organisme pot supravie\u021bui ani de zile \u00een mediul ostil al spa\u021biului cosmic.<\/p>\n

Odat\u0103 ce plantele s-au r\u0103sp\u00e2ndit pe scar\u0103 larg\u0103, \u00een aer au fost eliberate cantit\u0103\u021bi mari de oxigen. P\u0103m\u00e2ntul a devenit singura planet\u0103 din Sistemul nostru Solar cu o atmosfer\u0103 bogat\u0103 \u00een oxigen. C\u0103ut\u00e2nd oxigen pe alte lumi, s-ar putea ca \u00eentr-o bun\u0103 zi s\u0103 g\u0103sim dovezi ale existen\u021bei vie\u021bii extraterestre.<\/p>","protected":false},"excerpt":{"rendered":"

Studies of fossils in ancient rocks tell us that life probably began about 4 billion years ago, when the Earth was very young. No one knows how life began on […]<\/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\/2003\/05\/dna_s_famous_double-helix_structure3\/17902899-2-eng-GB\/DNA_s_famous_double-helix_structure.jpg","esa_banner_description":"DNA's famous double-helix structure","esa_banner_credit":"ESA 2003. Illustration by Medialab.","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/05\/DNA_s_famous_double-helix_structure3","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":[10,11,12],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1133","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1133","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=1133"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1133\/revisions"}],"predecessor-version":[{"id":4865,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/1133\/revisions\/4865"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=1133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=1133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=1133"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=1133"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=1133"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=1133"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=1133"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=1133"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=1133"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=1133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}