{"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\/pt\/planets_and_moons_life_on_earth\/","title":{"rendered":"A vida na Terra"},"content":{"rendered":"<div class=\"lede\">\n<p>Estudos sobre f\u00f3sseis em rochas antigas indicam-nos que a vida provavelmente teve in\u00edcio h\u00e1 cerca de 4 mil milh\u00f5es de anos, quando a Terra era ainda muito jovem. Ningu\u00e9m sabe como a vida surgiu na Terra. A maioria dos cientistas acredita que tenha surgido na \u00e1gua l\u00edquida. Mas ter\u00e1 sido em po\u00e7as \u00e0 superf\u00edcie, no subsolo ou no fundo dos oceanos, onde a atividade vulc\u00e2nica forma fontes termais?<\/p>\n<\/div>\n<p>As experi\u00eancias demonstram que os componentes qu\u00edmicos fundamentais da vida podem formar-se no espa\u00e7o ou na Terra. Muitos deles devem ter chegado \u00e0 Terra atrav\u00e9s de meteoritos e cometas. De alguma forma, estas subst\u00e2ncias qu\u00edmicas \u2018org\u00e2nicas\u2019 simples uniram-se para formar mol\u00e9culas mais complexas. Depois, come\u00e7aram a replicar-se e a crescer.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"264\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2004\/09\/Dry_earth3\" 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\/2004\/09\/dry_earth3\/17868598-2-eng-GB\/Dry_earth.jpeg\" alt=\"Dry earth\"><figcaption>Terra seca<\/figcaption><\/figure>\n<p>O que sabemos \u00e9 que \u2014 uma vez que come\u00e7a \u2014 a vida \u00e9 incrivelmente dif\u00edcil. Foram encontradas bact\u00e9rias vivas na Ant\u00e1rtida gelada, em \u00e1gua a ferver e no interior de rochas a at\u00e9 cinco km de profundidade. Sabemos tamb\u00e9m que esses organismos conseguem sobreviver durante anos no ambiente hostil do espa\u00e7o.<\/p>\n<p>Assim que as plantas se generalizaram, foram libertadas grandes quantidades de oxig\u00e9nio para a atmosfera. A Terra tornou-se o \u00fanico planeta do nosso Sistema Solar com uma atmosfera rica em oxig\u00e9nio. Ao procurarmos oxig\u00e9nio noutros mundos, talvez um dia encontremos ind\u00edcios de vida extraterrestre.<\/p>","protected":false},"excerpt":{"rendered":"<p>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 [&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\/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\/pt\/wp-json\/wp\/v2\/posts\/1133","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/comments?post=1133"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/1133\/revisions"}],"predecessor-version":[{"id":4865,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/posts\/1133\/revisions\/4865"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/media?parent=1133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/categories?post=1133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/tags?post=1133"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/panel?post=1133"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/language?post=1133"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/age?post=1133"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/duration?post=1133"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/resource_type?post=1133"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/audience?post=1133"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/pt\/wp-json\/wp\/v2\/wf_post_folders?post=1133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}