{"id":147,"date":"2018-06-26T09:12:00","date_gmt":"2018-06-26T07:12:00","guid":{"rendered":"https:\/\/kids.esa.int\/celebrate_asteroid_day_on_30_june\/"},"modified":"2026-10-08T00:24:46","modified_gmt":"2026-10-07T22:24:46","slug":"celebrate_asteroid_day_on_30_june","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/cs\/celebrate_asteroid_day_on_30_june\/","title":{"rendered":"Oslavte 30. \u010dervna Den asteroid\u016f!"},"content":{"rendered":"
\n

30. \u010dervna 1908, tedy p\u0159ed 110 lety, zas\u00e1hl Zemi asteroid o pr\u016fm\u011bru 40 metr\u016f! Explodoval ve vzduchu nad oblast\u00ed zvanou Tunguska na Sibi\u0159i. Na\u0161t\u011bst\u00ed je Tunguska velmi odlehl\u00e1 a p\u0159edpokl\u00e1d\u00e1 se, \u017ee nikdo nezem\u0159el. Bylo v\u0161ak vyvr\u00e1ceno 80 milion\u016f strom\u016f \u2013 na plo\u0161e srovnateln\u00e9 s rozlohou Velk\u00e9ho Lond\u00fdna! Tungusk\u00e1 ud\u00e1lost byla nejv\u011bt\u0161\u00edm dopadem, jak\u00fd Zem\u011b v novodob\u00e9 historii za\u017eila. Na pam\u00e1tku t\u00e9to ud\u00e1losti se 30. \u010derven ka\u017ed\u00fd rok slav\u00ed jako Den asteroid\u016f.<\/p>\n<\/div>\n

Den asteroid\u016f je skv\u011blou p\u0159\u00edle\u017eitost\u00ed zamyslet se nad t\u011bmito vesm\u00edrn\u00fdmi t\u011blesy a nad t\u00edm, jak n\u00e1m mohou pomoci \u2013 a jak n\u00e1m mohou ubl\u00ed\u017eit. Od roku 2009 vede ESA \u00fasil\u00ed zam\u011b\u0159en\u00e9 na vyhled\u00e1v\u00e1n\u00ed asteroid\u016f a komet, kter\u00e9 by pro n\u00e1s mohly p\u0159edstavovat nebezpe\u010d\u00ed. Tyto objekty se naz\u00fdvaj\u00ed objekty bl\u00edzko Zem\u011b, zkr\u00e1cen\u011b NEO, proto\u017ee jejich ob\u011b\u017en\u00e9 dr\u00e1hy ve vesm\u00edru je p\u0159iv\u00e1d\u011bj\u00ed bl\u00edzko k Zemi, a proto existuje riziko, \u017ee by mohlo doj\u00edt ke sr\u00e1\u017ece.<\/p>\n

\"Tunguska
Zk\u00e1za v Tungusce<\/figcaption><\/figure>\n

ESA proto v sou\u010dasn\u00e9 dob\u011b pracuje na v\u00fdvoji modern\u00edch dalekohled\u016f, kter\u00e9 budou schopny prohled\u00e1vat rozs\u00e1hl\u00e9 oblasti oblohy a prov\u00e1d\u011bt pr\u016fzkum ka\u017ed\u00fdch 48 hodin. Pokud se v bl\u00edzkosti nach\u00e1zej\u00ed n\u011bjak\u00e9 NEO, budeme m\u00edt v\u011bt\u0161\u00ed \u0161anci je zachytit. ESA tak\u00e9 pom\u00e1h\u00e1 propojovat astronomy z cel\u00e9ho sv\u011bta v r\u00e1mci programu nazvan\u00e9ho Space Situational Awareness, proto\u017ee \u010d\u00edm v\u00edce o\u010d\u00ed a dalekohled\u016f budeme m\u00edt k hled\u00e1n\u00ed NEO, t\u00edm l\u00e9pe!<\/p>\n

ESA pracuje na zp\u016fsobech, jak ochr\u00e1nit Zemi pro p\u0159\u00edpad, \u017ee by se NEO p\u0159ibl\u00ed\u017eilo p\u0159\u00edli\u0161 bl\u00edzko. Tato Mise Hera<\/a>, jeho\u017e start je pl\u00e1nov\u00e1n na rok 2023, bude pozorovat asteroid Didymos, aby zjistil, jak se zm\u011bn\u00ed jeho sm\u011br letu po n\u00e1razu sondy. To n\u00e1m uk\u00e1\u017ee, jak odklonit asteroidy, kter\u00e9 sm\u011b\u0159uj\u00ed ke sr\u00e1\u017ece se Zem\u00ed.<\/p>\n

Ne v\u0161echny asteroidy jsou nebezpe\u010dn\u00e9 \u2013 mohou n\u00e1m b\u00fdt i u\u017eite\u010dn\u00e9. Obsahuj\u00ed toti\u017e materi\u00e1ly a suroviny, kter\u00e9 bychom jednoho dne mohli z\u00edskat a vyu\u017e\u00edt zde na Zemi, nebo kter\u00e9 by n\u00e1m mohly pomoci proniknout hloub\u011bji do vesm\u00edru. Asteroidy n\u00e1m tak\u00e9 pom\u00e1haj\u00ed poznat podm\u00ednky, kter\u00e9 ve vesm\u00edru panovaly p\u0159ed dlouhou dobou, v dob\u011b, kdy byla Slune\u010dn\u00ed soustava je\u0161t\u011b velmi mlad\u00e1.<\/p>\n

Ka\u017ed\u00fd rok jsou akce v r\u00e1mci Dne asteroid\u016f vys\u00edl\u00e1ny \u017eiv\u011b po cel\u00e9m sv\u011bt\u011b a jejich nabit\u00fd program sdru\u017euje astronauty, rockov\u00e9 hv\u011bzdy i v\u011bdce. Bude se tak\u00e9 diskutovat o d\u016fmysln\u00fdch zp\u016fsobech, jak odstranit NEO z ob\u011b\u017en\u00e9 dr\u00e1hy Zem\u011b! Ka\u017ed\u00fd rok se v r\u00e1mci Asteroid Day konaj\u00ed stovky akc\u00ed a dosud se v 78 zem\u00edch uskute\u010dnily koncerty, workshopy, p\u0159edn\u00e1\u0161ky a mnoho dal\u0161\u00edho.<\/p>\n

\"Chelyabinsk
\u010celjabinsk\u00fd asteroid<\/figcaption><\/figure>\n

Cht\u011bli byste uspo\u0159\u00e1dat n\u011bjakou akci k oslav\u011b Dne asteroid\u016f? Jak\u00e9 zaj\u00edmav\u00e9 n\u00e1pady m\u00e1te?<\/p>\n

Zaj\u00edmavost:<\/b> Asteroid z Tungusky let\u011bl rychlost\u00ed v\u00edce ne\u017e 100 000 kilometr\u016f za hodinu, kdy\u017e explodoval!<\/p>","protected":false},"excerpt":{"rendered":"

On 30 June 1908, 110 years ago, an asteroid measuring 40-metres across hit the Earth! It exploded in the air over an area called Tunguska, in Siberia. Luckily, Tunguska is […]<\/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\/2018\/06\/tunguska_devastation2\/17868636-2-eng-GB\/Tunguska_devastation.jpg","esa_banner_description":"Tunguska devastation","esa_banner_credit":"ESA-P.Carril","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/06\/Tunguska_devastation2","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":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-147","post","type-post","status-publish","format-standard","hentry","category-news","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/147","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/comments?post=147"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/147\/revisions"}],"predecessor-version":[{"id":4320,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/posts\/147\/revisions\/4320"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/media?parent=147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/categories?post=147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/tags?post=147"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/panel?post=147"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/language?post=147"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/age?post=147"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/duration?post=147"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/resource_type?post=147"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/audience?post=147"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/cs\/wp-json\/wp\/v2\/wf_post_folders?post=147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}