{"id":385,"date":"2018-05-24T12:21:00","date_gmt":"2018-05-24T10:21:00","guid":{"rendered":"https:\/\/kids.esa.int\/a_space_ant_fires_its_lasers\/"},"modified":"2026-10-08T00:27:34","modified_gmt":"2026-10-07T22:27:34","slug":"a_space_ant_fires_its_lasers","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/et\/a_space_ant_fires_its_lasers\/","title":{"rendered":"Kosmosesipelgas tulistab oma laseritega!"},"content":{"rendered":"<div class=\"lede\">\n<p>\u201cSipelgad kosmoses\u201d v\u00f5ib k\u00f5lada nagu m\u00f5ne ulmefilmi pealkiri, kuid astronoomid teavad \u00fchte kosmilist sipelgat \u2013 Sipelga-udu! Veidi putukale meenutav Sipelga-udu on tegelikult tohutu gaasi- ja tolmukogum, mis asub Maast uskumatud 8000 valgusaasta kaugusel. Tavaliselt kasutaksid sa sipelga l\u00e4hemaks vaatamiseks luupi, kuid selle puhul on kindlasti vaja teleskoopi.<\/p>\n<\/div>\n<p>Astronoomid teadsid juba, et Sipelga-udu oli kunagi t\u00e4ht, v\u00f5ib-olla veidi sarnane meie P\u00e4ikesega, kuid see oli iidne ja oli oma vesinikuvaru ammendanud. T\u00e4he v\u00e4limised kihid heideti \u00e4ra, mis andis Sipelga-udu kuju, mida me Maalt n\u00e4eme, ning j\u00e4ttis selle keskmesse valge k\u00e4\u00e4bus t\u00e4he.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"4288\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/Herschel\" 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\/2018\/05\/herschel\/18248437-2-eng-GB\/Herschel.jpg\" alt=\"Herschel\"><figcaption>Herschel<\/figcaption><\/figure>\n<p>N\u00fc\u00fcd on t\u00e4hevaatlejad uurinud ESA Herscheli kosmoseobservatooriumi poolt tehtud vaatlusi Ant-udu kohta. See erip\u00e4rane seade ei n\u00e4e seda t\u00fc\u00fcpi valgust, mida meie silmad loomulikult tajuvad, vaid hoopis teist liiki valgust, mida nimetatakse infrapunaks. Nad leidsid midagi, mida keegi ei oodanud: lasereid!<\/p>\n<p>\u201cLaserid kosmoses\u201d k\u00f5lab samuti nagu ulmefilm, kuid tegelikult on need olemas! Ant-udu laserilisel n\u00e4htusel on teaduslik nimetus: vesiniku rekombinatsioonijoone laserkiirgus. See on v\u00e4ga haruldane n\u00e4htus, mis aitab meil saada rohkem teavet Ant-udu sisemiste piirkondade kohta.<\/p>\n<p>Astronoomid arvavad, et laserit tekitab valge k\u00e4\u00e4bust\u00e4he l\u00e4hedal asuv gaasiketas. Tavaliselt ei peaks valge k\u00e4\u00e4bust\u00e4he l\u00e4hedal gaasi olema, nii et kuidas see sinna sattus? \u00dcks v\u00f5imalik seletus on, et l\u00e4hedal asub veel \u00fcks t\u00e4ht, mis t\u00e4hendab, et valge k\u00e4\u00e4bust\u00e4ht kuulub kahe t\u00e4he s\u00fcsteemi. See teine t\u00e4ht v\u00f5ib hoida gaasiketta valge k\u00e4\u00e4bust\u00e4he \u00fcmber tiirlemas ja tekitada laserkiirt.<\/p>\n<figure class=\"wp-block-image size-large\" data-width=\"8101\" data-credit=\"ESA\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/Stellar_evolution\" 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\/2018\/05\/stellar_evolution\/17877849-2-eng-GB\/Stellar_evolution.jpg\" alt=\"Stellar evolution\"><figcaption>T\u00e4htede areng<\/figcaption><\/figure>\n<p>N\u00fc\u00fcd teame siis, et kosmoses on t\u00f5epoolest sipelgas, kes tulistab lasereid \u2013 omamoodi! V\u00f5ib-olla tehakse sellest kunagi film\u2026<\/p>\n<p><b>Huvitav fakt:<\/b> Sipelga-udu avastaja Donald Menzel oli ka esimene astronoom, kes esitas h\u00fcpoteesi, et uduv\u00f5rgustikud v\u00f5ivad tekitada looduslikke lasereid \u2013 ammu enne, kui me teadsime, et Sipelga-udu seda teeb, ja isegi enne, kui teadlased olid laboris lasereid valmistanud. Milline kokkusattumus!<\/p>","protected":false},"excerpt":{"rendered":"<p>&#8220;Ants in space&#8221; might sound like the name of a science fiction film, but astronomers know of one cosmic ant out there \u2013 the Ant Nebula! Looking a bit like [&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\/2018\/05\/ant_nebula2\/17892612-2-eng-GB\/Ant_Nebula.jpg","esa_banner_description":"Ant Nebula","esa_banner_credit":"NASA, ESA and the Hubble Heritage Team (STScI\/AURA)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2018\/05\/Ant_Nebula2","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":[],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-385","post","type-post","status-publish","format-standard","hentry","category-news"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/comments?post=385"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/385\/revisions"}],"predecessor-version":[{"id":4432,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/posts\/385\/revisions\/4432"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/media?parent=385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/categories?post=385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/tags?post=385"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/panel?post=385"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/language?post=385"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/age?post=385"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/duration?post=385"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/resource_type?post=385"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/audience?post=385"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/et\/wp-json\/wp\/v2\/wf_post_folders?post=385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}