{"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\/sl\/a_space_ant_fires_its_lasers\/","title":{"rendered":"Vesoljska mravlja spro\u017ei svoje laserje!"},"content":{"rendered":"<div class=\"lede\">\n<p>\u201cMravlje v vesolju\u201d se morda sli\u0161i kot naslov znanstvenofantasti\u010dnega filma, a astronomi poznajo eno tak\u0161no \u00bbvesoljsko mravljo\u00ab \u2013 meglico Mravlja! Meglica Mravlja, ki je na videz nekoliko podobna \u017eu\u017eelki, je v resnici ogromno zgo\u0161\u010devanje plina in prahu, ki je od Zemlje oddaljeno neverjetnih 8000 svetlobnih let. Obi\u010dajno bi za dober pogled na mravljo uporabili pove\u010devalno steklo, za to pa boste vsekakor potrebovali teleskop.<\/p>\n<\/div>\n<p>Astronomi so \u017ee vedeli, da je bila meglica Mravlja neko\u010d zvezda, morda nekoliko podobna na\u0161emu Soncu, vendar je bila zelo stara in je iz\u010drpala svoje zaloge vodikovega goriva. Zunanje plasti zvezde so se odtrgale, kar je pripeljalo do oblike meglice Mravlja, kot jo vidimo z Zemlje, v njenem sredi\u0161\u010du pa je ostala bela pritlikavka.<\/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>Astronomi so zdaj preu\u010dili posnetke meglice Mravlja, ki jih je posnel vesoljski observatorij Herschel agencije ESA. Ta posebna naprava ne zazna vrste svetlobe, ki jo na\u0161e o\u010di naravno zaznavajo, temve\u010d druga\u010dno vrsto svetlobe, imenovano infrarde\u010da. Odkrili so nekaj, \u010desar nih\u010de ni pri\u010dakoval: laserje!<\/p>\n<p>\u201cTudi \u201dlaserji v vesolju\u00ab zveni kot naslov znanstvenofantasti\u010dnega filma, a v resnici obstajajo! Laserski pojav, ki so ga odkrili v Meglici Mravlja, ima znanstveno ime: lasersko sevanje rekombinacijske \u010drte vodika. To je zelo redko pojav, ki nam pomaga izvedeti ve\u010d o notranjih predelih Meglice Mravlja.<\/p>\n<p>Astronomi menijo, da laser nastaja v plinskem disku v bli\u017eini bele pritlikavke. Obi\u010dajno tako blizu bele pritlikavke ne bi bilo plina, kako je torej pri\u0161el tja? Mo\u017ena razlaga je, da je v bli\u017eini \u0161e ena zvezda, kar pomeni, da je bela pritlikavka del dvojnega zvezdnega sistema. Ta druga zvezda bi lahko zadr\u017eevala plinski disk v orbiti okoli bele pritlikavke in ustvarjala laser.<\/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>Razvoj zvezd<\/figcaption><\/figure>\n<p>Torej zdaj vemo, da v vesolju res obstaja mravlja, ki strelja z laserji \u2013 na nek na\u010din! Morda bo nekega dne o tem posnet film\u2026<\/p>\n<p><b>Zanimiv podatek:<\/b> Odkrivitelj meglice Mravlja, Donald Menzel, je bil tudi prvi astronom, ki je predlagal, da bi meglice lahko ustvarjale naravne laserje \u2013 \u0161e dolgo preden smo vedeli, da to po\u010dne meglica Mravlja, in celo preden so znanstveniki v laboratorijih izdelali laserje. Kak\u0161no naklju\u010dje!<\/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\/sl\/wp-json\/wp\/v2\/posts\/385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/comments?post=385"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/385\/revisions"}],"predecessor-version":[{"id":4432,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/posts\/385\/revisions\/4432"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/media?parent=385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/categories?post=385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/tags?post=385"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/panel?post=385"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/language?post=385"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/age?post=385"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/duration?post=385"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/resource_type?post=385"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/audience?post=385"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/sl\/wp-json\/wp\/v2\/wf_post_folders?post=385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}