{"id":841,"date":"2004-12-02T15:46:00","date_gmt":"2004-12-02T14:46:00","guid":{"rendered":"https:\/\/kids.esa.int\/expendable_or_reusable\/"},"modified":"2026-10-08T00:32:53","modified_gmt":"2026-10-07T22:32:53","slug":"expendable_or_reusable","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/el\/expendable_or_reusable\/","title":{"rendered":"\u039c\u03af\u03b1\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2 \u03ae \u03b5\u03c0\u03b1\u03bd\u03b1\u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b9\u03bc\u03b1;"},"content":{"rendered":"<div class=\"lede\">\n<p>\u039a\u03ac\u03b8\u03b5 \u03c6\u03bf\u03c1\u03ac \u03c0\u03bf\u03c5 \u03bf \u03b5\u03c5\u03c1\u03c9\u03c0\u03b1\u03ca\u03ba\u03cc\u03c2 \u03c0\u03cd\u03c1\u03b1\u03c5\u03bb\u03bf\u03c2 Ariane 5 \u03b1\u03c0\u03bf\u03b3\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b1\u03c0\u03cc \u03c4\u03bf \u039a\u03bf\u03c5\u03c1\u03bf\u03cd, \u03c4\u03b1 \u03c3\u03c4\u03ac\u03b4\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03c0\u03c5\u03c1\u03b1\u03cd\u03bb\u03bf\u03c5 \u03c0\u03ad\u03c6\u03c4\u03bf\u03c5\u03bd \u03c3\u03c4\u03bf\u03bd \u03c9\u03ba\u03b5\u03b1\u03bd\u03cc \u03ae \u03ba\u03b1\u03af\u03b3\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c4\u03bc\u03cc\u03c3\u03c6\u03b1\u03b9\u03c1\u03b1. \u039f\u03b9 \u03b5\u03ba\u03c4\u03bf\u03be\u03b5\u03c5\u03c4\u03ad\u03c2 \u03cc\u03c0\u03c9\u03c2 \u03bf Ariane 5 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c9\u03c2 \u2018\u03b1\u03bd\u03b1\u03bb\u03ce\u03c3\u03b9\u03bc\u03bf\u03b9\u2019.<\/p>\n<\/div>\n<p>\u03a4\u03bf \u03bd\u03b1 \u03c0\u03b5\u03c4\u03ac\u03bc\u03b5 \u03ad\u03bd\u03b1\u03bd \u03c0\u03cd\u03c1\u03b1\u03c5\u03bb\u03bf \u03ba\u03ac\u03b8\u03b5 \u03c6\u03bf\u03c1\u03ac \u03c0\u03bf\u03c5 \u03b5\u03ba\u03c4\u03bf\u03be\u03b5\u03cd\u03b5\u03c4\u03b1\u03b9 \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03c0\u03b1\u03c4\u03ac\u03bb\u03b7 \u03ba\u03b1\u03b9 \u03b4\u03b1\u03c0\u03b1\u03bd\u03b7\u03c1\u03cc. \u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03c4\u03bf \u03ba\u03cc\u03c3\u03c4\u03bf\u03c2 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c1\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c7\u03ac\u03c1\u03b7 \u03c3\u03c4\u03b7\u03bd \u03bc\u03b1\u03b6\u03b9\u03ba\u03ae \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03c0\u03c5\u03c1\u03b1\u03cd\u03bb\u03c9\u03bd. \u039a\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b3\u03c1\u03b1\u03bc\u03bc\u03ad\u03c2 \u03c3\u03c5\u03bd\u03b1\u03c1\u03bc\u03bf\u03bb\u03cc\u03b3\u03b7\u03c3\u03b7\u03c2 \u2013 \u03cc\u03c0\u03c9\u03c2 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ce\u03c2 \u03ba\u03b1\u03b9 \u03c4\u03b1 \u03b1\u03ba\u03c1\u03b9\u03b2\u03ac \u03b1\u03c5\u03c4\u03bf\u03ba\u03af\u03bd\u03b7\u03c4\u03b1.<\/p>\n<p>\u039f\u03b9 \u03c0\u03c5\u03c1\u03b1\u03cd\u03bb\u03bf\u03b9 \u03bc\u03af\u03b1\u03c2 \u03c7\u03c1\u03ae\u03c3\u03b7\u03c2 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03bd\u03b1 \u03b3\u03af\u03bd\u03bf\u03c5\u03bd \u03c0\u03bf\u03bb\u03cd \u03b1\u03be\u03b9\u03cc\u03c0\u03b9\u03c3\u03c4\u03bf\u03b9. \u0391\u03bd \u03ba\u03ac\u03c0\u03bf\u03b9\u03bf\u03c2 \u03b1\u03c0\u03bf\u03c4\u03cd\u03c7\u03b5\u03b9 \u03ba\u03b1\u03c4\u03ac \u03c4\u03b7\u03bd \u03b5\u03ba\u03c4\u03cc\u03be\u03b5\u03c5\u03c3\u03b7, \u03b5\u03af\u03bd\u03b1\u03b9 \u03b1\u03c1\u03ba\u03b5\u03c4\u03ac \u03b5\u03cd\u03ba\u03bf\u03bb\u03bf \u03bd\u03b1 \u03b4\u03b9\u03b1\u03c0\u03b9\u03c3\u03c4\u03c9\u03b8\u03b5\u03af \u03c4\u03b9 \u03c0\u03ae\u03b3\u03b5 \u03c3\u03c4\u03c1\u03b1\u03b2\u03ac \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b4\u03b9\u03bf\u03c1\u03b8\u03c9\u03b8\u03b5\u03af \u03c4\u03bf \u03c0\u03c1\u03cc\u03b2\u03bb\u03b7\u03bc\u03b1.<\/p>\n<p>\u0397 \u03ac\u03bb\u03bb\u03b7 \u03c0\u03c1\u03bf\u03c3\u03ad\u03b3\u03b3\u03b9\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03b5\u03bd\u03cc\u03c2 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b9\u03bc\u03bf\u03c5 \u03bf\u03c7\u03ae\u03bc\u03b1\u03c4\u03bf\u03c2 \u03b5\u03ba\u03c4\u03cc\u03be\u03b5\u03c5\u03c3\u03b7\u03c2. \u039c\u03ad\u03c7\u03c1\u03b9 \u03c4\u03ce\u03c1\u03b1, \u03c4\u03bf \u03bc\u03cc\u03bd\u03bf \u03c0\u03bf\u03c5 \u03ad\u03c7\u03b5\u03b9 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03b5\u03af \u03b5\u03af\u03bd\u03b1\u03b9 \u03c4\u03bf \u03b1\u03bc\u03b5\u03c1\u03b9\u03ba\u03b1\u03bd\u03b9\u03ba\u03cc \u03b4\u03b9\u03b1\u03c3\u03c4\u03b7\u03bc\u03b9\u03ba\u03cc \u03bb\u03b5\u03c9\u03c6\u03bf\u03c1\u03b5\u03af\u03bf.<\/p>\n<p>\u03a4\u03b1 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03bc\u03ad\u03c1\u03b7 \u03c4\u03bf\u03c5 \u03bf\u03c1\u03bc\u03c0\u03af\u03c4\u03b5\u03c1 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03c3\u03c4\u03b7\u03bc\u03b9\u03ba\u03bf\u03cd \u03bb\u03b5\u03c9\u03c6\u03bf\u03c1\u03b5\u03af\u03bf\u03c5 \u03ad\u03c7\u03bf\u03c5\u03bd \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03bf\u03cd\u03bd \u03ad\u03c9\u03c2 \u03ba\u03b1\u03b9 100 \u03c0\u03c4\u03ae\u03c3\u03b5\u03b9\u03c2. \u039f\u03b9 \u03c0\u03c1\u03bf\u03c9\u03b8\u03b7\u03c4\u03ae\u03c1\u03b5\u03c2 \u03c3\u03c4\u03b5\u03c1\u03b5\u03ce\u03bd \u03ba\u03b1\u03c5\u03c3\u03af\u03bc\u03c9\u03bd \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03c3\u03c4\u03b7\u03bc\u03b9\u03ba\u03bf\u03cd \u03bb\u03b5\u03c9\u03c6\u03bf\u03c1\u03b5\u03af\u03bf\u03c5 \u03bc\u03c0\u03bf\u03c1\u03bf\u03cd\u03bd \u03b5\u03c0\u03af\u03c3\u03b7\u03c2 \u03bd\u03b1 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03bf\u03cd\u03bd, \u03b1\u03bd \u03c7\u03c1\u03b5\u03b9\u03b1\u03c3\u03c4\u03b5\u03af. \u039c\u03cc\u03bd\u03bf \u03b7 \u03b5\u03be\u03c9\u03c4\u03b5\u03c1\u03b9\u03ba\u03ae \u03b4\u03b5\u03be\u03b1\u03bc\u03b5\u03bd\u03ae \u03ba\u03b1\u03c5\u03c3\u03af\u03bc\u03bf\u03c5 \u03b1\u03c0\u03bf\u03c1\u03c1\u03af\u03c0\u03c4\u03b5\u03c4\u03b1\u03b9 \u03ba\u03ac\u03b8\u03b5 \u03c6\u03bf\u03c1\u03ac.<\/p>\n<p>\u03a9\u03c3\u03c4\u03cc\u03c3\u03bf, \u03b7 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ae \u03ba\u03b1\u03b9 \u03b7 \u03c0\u03c4\u03ae\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03b4\u03b9\u03b1\u03c3\u03c4\u03b7\u03bc\u03b9\u03ba\u03bf\u03cd \u03bb\u03b5\u03c9\u03c6\u03bf\u03c1\u03b5\u03af\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9 \u03c0\u03bf\u03bb\u03cd \u03b4\u03b1\u03c0\u03b1\u03bd\u03b7\u03c1\u03ad\u03c2. \u0391\u03c5\u03c4\u03cc \u03bf\u03c6\u03b5\u03af\u03bb\u03b5\u03c4\u03b1\u03b9 \u03ba\u03c5\u03c1\u03af\u03c9\u03c2 \u03c3\u03c4\u03bf \u03b3\u03b5\u03b3\u03bf\u03bd\u03cc\u03c2 \u03cc\u03c4\u03b9 \u03ad\u03c7\u03b5\u03b9 \u03c3\u03c7\u03b5\u03b4\u03b9\u03b1\u03c3\u03c4\u03b5\u03af \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03bc\u03b5\u03c4\u03b1\u03c6\u03ad\u03c1\u03b5\u03b9 \u03ad\u03c9\u03c2 \u03ba\u03b1\u03b9 \u03b5\u03c0\u03c4\u03ac \u03bc\u03ad\u03bb\u03b7 \u03c0\u03bb\u03b7\u03c1\u03ce\u03bc\u03b1\u03c4\u03bf\u03c2. \u0395\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd, \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03c4\u03ad\u03c7\u03b5\u03b9 \u03c3\u03c4\u03b7\u03bd \u03b1\u03ba\u03c1\u03b1\u03af\u03b1 \u03b8\u03b5\u03c1\u03bc\u03cc\u03c4\u03b7\u03c4\u03b1 \u03c4\u03b7\u03c2 \u03b5\u03c0\u03b1\u03bd\u03b5\u03b9\u03c3\u03cc\u03b4\u03bf\u03c5 \u03c3\u03c4\u03b7\u03bd \u03b1\u03c4\u03bc\u03cc\u03c3\u03c6\u03b1\u03b9\u03c1\u03b1 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03c0\u03c1\u03bf\u03c3\u03b3\u03b5\u03b9\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03b4\u03b9\u03ac\u03b4\u03c1\u03bf\u03bc\u03bf \u03c0\u03c1\u03bf\u03c3\u03b3\u03b5\u03af\u03c9\u03c3\u03b7\u03c2. \u0394\u03b5\u03bd \u03ad\u03c7\u03bf\u03c5\u03bd \u03c0\u03c1\u03bf\u03b3\u03c1\u03b1\u03bc\u03bc\u03b1\u03c4\u03b9\u03c3\u03c4\u03b5\u03af \u03ac\u03bb\u03bb\u03bf\u03b9 \u03b5\u03c0\u03b1\u03bd\u03b1\u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03ae\u03c3\u03b9\u03bc\u03bf\u03b9 \u03c6\u03bf\u03c1\u03b5\u03af\u03c2 \u03b5\u03ba\u03c4\u03cc\u03be\u03b5\u03c5\u03c3\u03b7\u03c2, \u03b1\u03bd \u03ba\u03b1\u03b9 \u03bf\u03b9 \u03bc\u03b5\u03bb\u03ad\u03c4\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03ad\u03c4\u03bf\u03b9\u03b1 \u03bf\u03c7\u03ae\u03bc\u03b1\u03c4\u03b1 \u03c3\u03c5\u03bd\u03b5\u03c7\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9.<\/p>\n<p>\u0397 ESA \u03b8\u03b1 \u03b5\u03be\u03b5\u03c4\u03ac\u03c3\u03b5\u03b9 \u03c0\u03c1\u03bf\u03c3\u03b5\u03ba\u03c4\u03b9\u03ba\u03ac \u03ba\u03b1\u03b9 \u03c4\u03b9\u03c2 \u03b4\u03cd\u03bf \u03c0\u03c1\u03bf\u03c3\u03b5\u03b3\u03b3\u03af\u03c3\u03b5\u03b9\u03c2, \u03ce\u03c3\u03c4\u03b5 \u03bd\u03b1 \u03bb\u03b7\u03c6\u03b8\u03b5\u03af \u03c4\u03b5\u03bb\u03b9\u03ba\u03ac \u03b1\u03c0\u03cc\u03c6\u03b1\u03c3\u03b7 \u03c3\u03c7\u03b5\u03c4\u03b9\u03ba\u03ac \u03bc\u03b5 \u03c4\u03bf\u03bd \u03c4\u03c1\u03cc\u03c0\u03bf \u03b1\u03bd\u03c4\u03b9\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 Ariane 5.<\/p>","protected":false},"excerpt":{"rendered":"<p>Every time Europe\u2019s Ariane 5 lifts off from Kourou, its rocket stages fall into the ocean or burn up in the atmosphere. Launchers such as Ariane 5 are said to [&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\/2000\/08\/atmospheric_re-entry_demonstrator_-_artist_s_impression2\/17866009-3-eng-GB\/Atmospheric_Re-entry_Demonstrator_-_artist_s_impression.jpg","esa_banner_description":"Atmospheric Re-entry Demonstrator - artist's impression","esa_banner_credit":"ESA - D.Ducros","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2000\/08\/Atmospheric_Re-entry_Demonstrator_-_artist_s_impression2","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":[10,41,40],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-841","post","type-post","status-publish","format-standard","hentry","category-learn","category-rockets-technology","category-technology","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/posts\/841","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=841"}],"version-history":[{"count":1,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/posts\/841\/revisions"}],"predecessor-version":[{"id":1984,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/posts\/841\/revisions\/1984"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/media?parent=841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/categories?post=841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/tags?post=841"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/panel?post=841"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/language?post=841"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/age?post=841"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/duration?post=841"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/resource_type?post=841"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/audience?post=841"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/el\/wp-json\/wp\/v2\/wf_post_folders?post=841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}