{"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\/ro\/a_space_ant_fires_its_lasers\/","title":{"rendered":"O furnic\u0103 spa\u021bial\u0103 \u00ee\u0219i lanseaz\u0103 laserele!"},"content":{"rendered":"<div class=\"lede\">\n<p>\u201cFurnicile din spa\u021biu\u201d ar putea suna ca titlul unui film de science-fiction, dar astronomii cunosc o \u201efurnic\u0103\u201d cosmic\u0103 acolo, \u00een spa\u021biu \u2013 Nebuloasa Furnic\u0103! Ar\u0103t\u00e2nd oarecum ca un insect, Nebuloasa Furnic\u0103 este, de fapt, o imens\u0103 aglomerare de gaz \u0219i praf, situat\u0103 la o distan\u021b\u0103 incredibil\u0103 de 8000 de ani-lumin\u0103 de P\u0103m\u00e2nt. \u00cen mod normal, ai folosi o lup\u0103 pentru a observa bine o furnic\u0103, dar pentru aceasta ai nevoie cu siguran\u021b\u0103 de un telescop.<\/p>\n<\/div>\n<p>Astronomii \u0219tiau deja c\u0103 Nebuloasa Furnicii a fost c\u00e2ndva o stea, poate pu\u021bin asem\u0103n\u0103toare cu Soarele nostru, dar era foarte veche \u0219i \u00ee\u0219i epuizase rezervele de hidrogen. Straturile exterioare ale stelei au fost aruncate \u00een spa\u021biu, d\u00e2nd na\u0219tere formei Nebuloasei Furnicii pe care o vedem de pe P\u0103m\u00e2nt \u0219i l\u0103s\u00e2nd \u00een urm\u0103 o pitic\u0103 alb\u0103 \u00een centrul s\u0103u.<\/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>Astronomii au analizat observa\u021biile asupra Nebuloasei Ant, realizate de observatorul spa\u021bial Herschel al ESA. Acest instrument special nu detecteaz\u0103 tipul de lumin\u0103 pe care ochii no\u0219tri \u00eel percep \u00een mod natural, ci un alt tip de lumin\u0103, numit\u0103 infraro\u0219u. Ei au descoperit ceva la care nimeni nu se a\u0219tepta: lasere!<\/p>\n<p>\u201cLaserele din spa\u021biu\u201d sun\u0103, de asemenea, ca un film de science-fiction, dar ele exist\u0103 cu adev\u0103rat! Efectul laser observat \u00een Nebuloasa Furnicii are o denumire \u0219tiin\u021bific\u0103: emisie laser de linie de recombinare a hidrogenului. Acest fenomen este foarte rar \u0219i ne ajut\u0103 s\u0103 afl\u0103m mai multe despre regiunile interioare ale Nebuloasei Furnicii.<\/p>\n<p>Astronomii consider\u0103 c\u0103 laserul este generat de un disc de gaz situat \u00een apropierea piticei albe. \u00cen mod normal, nu ar exista gaz at\u00e2t de aproape de o pitic\u0103 alb\u0103, a\u0219a c\u0103 cum a ajuns acolo? O posibil\u0103 explica\u021bie este c\u0103 \u00een apropiere se afl\u0103 o alt\u0103 stea, ceea ce \u00eenseamn\u0103 c\u0103 pitica alb\u0103 face parte dintr-un sistem stelar binar. Aceast\u0103 a doua stea ar putea men\u021bine discul de gaz \u00een orbit\u0103 \u00een jurul piticii albe \u0219i ar putea produce laserul.<\/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>Evolu\u021bia stelelor<\/figcaption><\/figure>\n<p>A\u0219adar, acum \u0219tim c\u0103 exist\u0103 \u00eentr-adev\u0103r o furnic\u0103 \u00een spa\u021biu, care trage cu lasere \u2013 \u00eentr-un fel! Poate c\u0103 \u00eentr-o zi se va face un film despre asta\u2026<\/p>\n<p><b>Un fapt interesant:<\/b> Descoperitorul Nebuloasei Furnicii, Donald Menzel, a fost, de asemenea, primul astronom care a sugerat c\u0103 nebuloasele ar putea produce lasere naturale \u2013 cu mult \u00eenainte de a afla c\u0103 Nebuloasa Furnicii f\u0103cea acest lucru \u0219i chiar \u00eenainte ca oamenii de \u0219tiin\u021b\u0103 s\u0103 fi creat lasere \u00een laboratoare. Ce coinciden\u021b\u0103!<\/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\/ro\/wp-json\/wp\/v2\/posts\/385","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/comments?post=385"}],"version-history":[{"count":4,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/385\/revisions"}],"predecessor-version":[{"id":4432,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/posts\/385\/revisions\/4432"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/media?parent=385"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/categories?post=385"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/tags?post=385"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/panel?post=385"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/language?post=385"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/age?post=385"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/duration?post=385"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/resource_type?post=385"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/audience?post=385"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/ro\/wp-json\/wp\/v2\/wf_post_folders?post=385"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}