{"id":1142,"date":"2004-11-19T08:27:00","date_gmt":"2004-11-19T07:27:00","guid":{"rendered":"https:\/\/kids.esa.int\/are_we_alone_life_on_earth\/"},"modified":"2026-10-08T00:36:29","modified_gmt":"2026-10-07T22:36:29","slug":"are_we_alone_life_on_earth","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/el\/are_we_alone_life_on_earth\/","title":{"rendered":"\u0397 \u03b6\u03c9\u03ae \u03c3\u03c4\u03b7 \u0393\u03b7"},"content":{"rendered":"<div class=\"lede\">\n<p>\u039a\u03b1\u03bd\u03b5\u03af\u03c2 \u03b4\u03b5\u03bd \u03be\u03ad\u03c1\u03b5\u03b9 \u03c0\u03ce\u03c2 \u03ae \u03b3\u03b9\u03b1\u03c4\u03af \u03be\u03b5\u03ba\u03af\u03bd\u03b7\u03c3\u03b5 \u03b7 \u03b6\u03c9\u03ae. \u0393\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5 \u03cc\u03bc\u03c9\u03c2 \u03cc\u03c4\u03b9 \u03b7 \u03b6\u03c9\u03ae \u03c3\u03c4\u03b7 \u0393\u03b7 \u03be\u03b5\u03ba\u03af\u03bd\u03b7\u03c3\u03b5 \u03c4\u03bf\u03c5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf\u03bd 3,8 \u03b4\u03b9\u03c3\u03b5\u03ba\u03b1\u03c4\u03bf\u03bc\u03bc\u03cd\u03c1\u03b9\u03b1 (3 800 000 000) \u03c7\u03c1\u03cc\u03bd\u03b9\u03b1 \u03c0\u03c1\u03b9\u03bd. \u039c\u03ad\u03c7\u03c1\u03b9 \u03c4\u03cc\u03c4\u03b5, \u03bf \u03bd\u03b5\u03b1\u03c1\u03cc\u03c2 \u03c0\u03bb\u03b1\u03bd\u03ae\u03c4\u03b7\u03c2 \u03b5\u03af\u03c7\u03b5 \u03ba\u03c1\u03c5\u03ce\u03c3\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03b5\u03af\u03c7\u03b5 \u03c3\u03c7\u03b7\u03bc\u03b1\u03c4\u03af\u03c3\u03b5\u03b9 \u03ad\u03bd\u03b1\u03bd \u03b2\u03c1\u03b1\u03c7\u03ce\u03b4\u03b7 \u03c6\u03bb\u03bf\u03b9\u03cc. \u039f\u03c1\u03b9\u03c3\u03bc\u03ad\u03bd\u03bf\u03b9 \u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03bf\u03bd\u03b5\u03c2 \u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03b7 \u03b6\u03c9\u03ae \u03be\u03b5\u03ba\u03af\u03bd\u03b7\u03c3\u03b5 \u03c3\u03b5 \u03bc\u03b9\u03b1 \u03b2\u03c1\u03b1\u03c7\u03ce\u03b4\u03b7 \u03bb\u03b9\u03bc\u03bd\u03bf\u03cd\u03bb\u03b1 \u03ae \u03c3\u03c4\u03bf\u03bd \u03c9\u03ba\u03b5\u03b1\u03bd\u03cc. \u0386\u03bb\u03bb\u03bf\u03b9 \u03c0\u03b9\u03c3\u03c4\u03b5\u03cd\u03bf\u03c5\u03bd \u03cc\u03c4\u03b9 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03ad\u03c6\u03c4\u03b1\u03c3\u03b5 \u03b1\u03c0\u03cc \u03c4\u03bf \u03b4\u03b9\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03bc\u03b5 \u03ba\u03bf\u03bc\u03ae\u03c4\u03b5\u03c2 \u03ba\u03b1\u03b9 \u03b1\u03c3\u03c4\u03b5\u03c1\u03bf\u03b5\u03b9\u03b4\u03b5\u03af\u03c2.<\/p>\n<\/div>\n<p>\u0391\u03c0\u03cc \u03cc,\u03c4\u03b9 \u03b3\u03bd\u03c9\u03c1\u03af\u03b6\u03bf\u03c5\u03bc\u03b5, \u03b7 \u0393\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u03bc\u03cc\u03bd\u03bf\u03c2 \u03c4\u03cc\u03c0\u03bf\u03c2 \u03cc\u03c0\u03bf\u03c5 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03b6\u03c9\u03ae. \u038c\u03c0\u03bf\u03c5 \u03ba\u03b9 \u03b1\u03bd \u03ba\u03bf\u03b9\u03c4\u03ac\u03be\u03bf\u03c5\u03bc\u03b5 \u03c3\u03c4\u03bf\u03bd \u03c0\u03bb\u03b1\u03bd\u03ae\u03c4\u03b7 \u03bc\u03b1\u03c2, \u03c4\u03b1 \u03b2\u03b1\u03ba\u03c4\u03ae\u03c1\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03ac\u03bb\u03bb\u03b5\u03c2 \u03b1\u03c0\u03bb\u03ad\u03c2 \u03bc\u03bf\u03c1\u03c6\u03ad\u03c2 \u03b6\u03c9\u03ae\u03c2 \u03ad\u03c7\u03bf\u03c5\u03bd \u03b2\u03c1\u03b5\u03b9 \u03c4\u03bf \u03c3\u03c0\u03af\u03c4\u03b9 \u03c4\u03bf\u03c5\u03c2.<\/p>\n<p>\u03a4\u03b1 \u03c6\u03c5\u03c4\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b6\u03ce\u03b1 \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03bf \u03c6\u03c9\u03c2 \u03c4\u03bf\u03c5 \u03ae\u03bb\u03b9\u03bf\u03c5 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03c0\u03c4\u03c5\u03c7\u03b8\u03bf\u03cd\u03bd. \u039c\u03ad\u03c7\u03c1\u03b9 \u03c4\u03b7 \u03b4\u03b5\u03ba\u03b1\u03b5\u03c4\u03af\u03b1 \u03c4\u03bf\u03c5 1970, \u03bf\u03b9 \u03b5\u03c0\u03b9\u03c3\u03c4\u03ae\u03bc\u03bf\u03bd\u03b5\u03c2 \u03c0\u03af\u03c3\u03c4\u03b5\u03c5\u03b1\u03bd \u03cc\u03c4\u03b9 \u03b7 \u03b6\u03c9\u03ae \u03c5\u03c0\u03ae\u03c1\u03c7\u03b5 \u03bc\u03cc\u03bd\u03bf \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03c4\u03b7\u03bd \u03b5\u03c0\u03b9\u03c6\u03ac\u03bd\u03b5\u03b9\u03b1 \u03c4\u03b7\u03c2 \u0393\u03b7\u03c2.<\/p>\n<figure class=\"wp-block-image size-natural\" data-width=\"400\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2003\/12\/Mars_from_5.5_million_km_taken_1_December3\" 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\/2003\/12\/mars_from_5.5_million_km_taken_1_december3\/17899273-2-eng-GB\/Mars_from_5.5_million_km_taken_1_December.jpg\" alt=\"Mars from 5.5 million km, taken 1 December\"><figcaption>\u039f \u0386\u03c1\u03b7\u03c2 \u03b1\u03c0\u03cc \u03b1\u03c0\u03cc\u03c3\u03c4\u03b1\u03c3\u03b7 5,5 \u03b5\u03ba\u03b1\u03c4\u03bf\u03bc\u03bc\u03c5\u03c1\u03af\u03c9\u03bd \u03c7\u03bb\u03bc., \u03c6\u03c9\u03c4\u03bf\u03b3\u03c1\u03b1\u03c6\u03af\u03b1 \u03c0\u03bf\u03c5 \u03c4\u03c1\u03b1\u03b2\u03ae\u03c7\u03c4\u03b7\u03ba\u03b5 \u03c4\u03b7\u03bd 1\u03b7 \u0394\u03b5\u03ba\u03b5\u03bc\u03b2\u03c1\u03af\u03bf\u03c5<\/figcaption><\/figure>\n<p>\u0391\u03c0\u03cc \u03c4\u03cc\u03c4\u03b5, \u03ad\u03c7\u03bf\u03c5\u03bd \u03b1\u03bd\u03b1\u03ba\u03b1\u03bb\u03c5\u03c6\u03b8\u03b5\u03af \u03b2\u03b1\u03ba\u03c4\u03ae\u03c1\u03b9\u03b1 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03c7\u03b9\u03bb\u03b9\u03cc\u03bc\u03b5\u03c4\u03c1\u03b1 \u03ba\u03ac\u03c4\u03c9 \u03b1\u03c0\u03cc \u03c4\u03bf \u03ad\u03b4\u03b1\u03c6\u03bf\u03c2, \u03bc\u03ad\u03c3\u03b1 \u03c3\u03b5 \u03c3\u03c5\u03bc\u03c0\u03b1\u03b3\u03ae \u03c0\u03b5\u03c4\u03c1\u03ce\u03bc\u03b1\u03c4\u03b1. \u0396\u03bf\u03c5\u03bd \u03c4\u03c1\u03b5\u03c6\u03cc\u03bc\u03b5\u03bd\u03b1 \u03b1\u03c0\u03cc \u03b1\u03ad\u03c1\u03b9\u03b1 \u03ba\u03b1\u03b9 \u03bf\u03c1\u03c5\u03ba\u03c4\u03ac \u03c0\u03bf\u03c5 \u03c0\u03b5\u03c1\u03b9\u03ad\u03c7\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03bf \u03c0\u03ad\u03c4\u03c1\u03c9\u03bc\u03b1. \u0392\u03b1\u03ba\u03c4\u03ae\u03c1\u03b9\u03b1 \u03ad\u03c7\u03bf\u03c5\u03bd \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03b5\u03bd\u03c4\u03bf\u03c0\u03b9\u03c3\u03c4\u03b5\u03af \u03c3\u03b5 \u03b9\u03c3\u03c7\u03c5\u03c1\u03ac \u03bf\u03be\u03ad\u03b1, \u03c3\u03c4\u03bf \u03c0\u03b1\u03b3\u03c9\u03bc\u03ad\u03bd\u03bf \u03ba\u03c1\u03cd\u03bf \u03c4\u03b7\u03c2 \u0391\u03bd\u03c4\u03b1\u03c1\u03ba\u03c4\u03b9\u03ba\u03ae\u03c2, \u03ba\u03b1\u03b8\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03ba\u03bf\u03bd\u03c4\u03ac \u03c3\u03b5 \u03b8\u03b5\u03c1\u03bc\u03ad\u03c2 \u03c0\u03b7\u03b3\u03ad\u03c2 \u03c3\u03c4\u03b1 \u03c3\u03ba\u03bf\u03c4\u03b5\u03b9\u03bd\u03ac \u03b2\u03ac\u03b8\u03b7 \u03c4\u03bf\u03c5 \u03c9\u03ba\u03b5\u03b1\u03bd\u03bf\u03cd. \u039c\u03b5\u03c1\u03b9\u03ba\u03ac \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03b1\u03ba\u03cc\u03bc\u03b7 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03b2\u03b9\u03ce\u03c3\u03bf\u03c5\u03bd \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ad\u03c2 \u03bc\u03b5 \u03c5\u03c8\u03b7\u03bb\u03ae \u03c1\u03b1\u03b4\u03b9\u03b5\u03bd\u03ad\u03c1\u03b3\u03b5\u03b9\u03b1. \u038c\u03c3\u03bf \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9 \u03bd\u03b5\u03c1\u03cc, \u03b7 \u03b6\u03c9\u03ae \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b2\u03c1\u03b5\u03b9 \u03c4\u03c1\u03cc\u03c0\u03bf \u03bd\u03b1 \u03b5\u03c0\u03b9\u03b2\u03b9\u03ce\u03c3\u03b5\u03b9.<\/p>\n<p>\u0391\u03bd \u03b7 \u03b6\u03c9\u03ae \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03cc\u03c3\u03bf \u03b4\u03cd\u03c3\u03ba\u03bf\u03bb\u03b7, \u03b8\u03b1 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03c3\u03b5 \u03bd\u03b1 \u03be\u03b5\u03ba\u03b9\u03bd\u03ae\u03c3\u03b5\u03b9 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b5\u03c0\u03b9\u03b2\u03b9\u03ce\u03c3\u03b5\u03b9 \u03c3\u03b5 \u03ac\u03bb\u03bb\u03bf\u03c5\u03c2 \u03c0\u03bb\u03b1\u03bd\u03ae\u03c4\u03b5\u03c2; \u03a4\u03bf \u03c0\u03b9\u03bf \u03c0\u03b9\u03b8\u03b1\u03bd\u03cc \u03bc\u03ad\u03c1\u03bf\u03c2 \u03c3\u03c4\u03bf \u0397\u03bb\u03b9\u03b1\u03ba\u03cc \u03bc\u03b1\u03c2 \u03a3\u03cd\u03c3\u03c4\u03b7\u03bc\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf \u0386\u03c1\u03b7\u03c2.<\/p>","protected":false},"excerpt":{"rendered":"<p>No one knows how or why life began. We do know that life on Earth started at least 3.8 billion (3 800 000 000) years ago. By this time, the [&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\/2001\/07\/life_in_extreme_conditions_on_earth_raises_hopes_for_life_elsewhere_in_the_universe2\/17864454-3-eng-GB\/Life_in_extreme_conditions_on_Earth_raises_hopes_for_life_elsewhere_in_the_universe.jpg","esa_banner_description":"","esa_banner_credit":"ESA","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2001\/07\/Life_in_extreme_conditions_on_Earth_raises_hopes_for_life_elsewhere_in_the_universe2","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":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-1142","post","type-post","status-publish","format-standard","hentry","category-are-we-alone","category-learn","category-life-in-space","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/posts\/1142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/comments?post=1142"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/posts\/1142\/revisions"}],"predecessor-version":[{"id":4868,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/posts\/1142\/revisions\/4868"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/media?parent=1142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/categories?post=1142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/tags?post=1142"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/panel?post=1142"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/language?post=1142"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/age?post=1142"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/duration?post=1142"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/resource_type?post=1142"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/audience?post=1142"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/wf_post_folders?post=1142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}