{"id":968,"date":"2005-01-19T09:08:00","date_gmt":"2005-01-19T08:08:00","guid":{"rendered":"https:\/\/kids.esa.int\/sounds_of_an_alien_world\/"},"modified":"2026-10-08T00:34:19","modified_gmt":"2026-10-07T22:34:19","slug":"sounds_of_an_alien_world","status":"publish","type":"post","link":"https:\/\/kids.esa.int\/da\/sounds_of_an_alien_world\/","title":{"rendered":"Lyde fra en fremmed verden"},"content":{"rendered":"<p>Blandt Huygens\u2019 mange videnskabelige bedrifter var den f\u00f8rste optagelse nogensinde af lyde, der blev sendt tilbage fra en anden verden.<\/p>\n<p>Under den lange faldsk\u00e6rmsnedstigning gennem satellitens t\u00e6tte atmosf\u00e6re blev lydene fra Titan indsamlet af en \u201cmikrofon\u201d uden p\u00e5 sonden.<\/p>\n<p>Samtidig sendte radarh\u00f8jdem\u00e5leren p\u00e5 Huygens radiosignaler, der blev reflekteret af Titans overflade.<\/p>\n<h2>1. I fuld fart gennem Titans t\u00e5ge<\/h2>\n<figure class=\"wp-block-image size-natural\" data-width=\"546\" data-credit=\"ESA\/NASA\/JPL\/University of Arizona\" data-detail-url=\"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/01\/First_colour_view_of_Titan_s_surface2\" 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\/2005\/01\/first_colour_view_of_titan_s_surface2\/17907791-2-eng-GB\/First_colour_view_of_Titan_s_surface.png\" alt=\"First colour view of Titan&#x27;s surface\"><figcaption>F\u00f8rste farvebillede af Titans overflade<\/figcaption><\/figure>\n<p>.myLink {color:blue}.myLink:hover {color:aa3333;text-decoration:underline}Denne optagelse er en rekonstruktion af de lyde, som Huygens\u2019 mikrofon opfangede. Flere lydklip, der er optaget p\u00e5 forskellige tidspunkter, er blevet samlet til et lydspor p\u00e5 et minut.<\/p>\n<p>Resultatet er en realistisk gengivelse af, hvad en passager om bord p\u00e5 Huygens ville have h\u00f8rt under nedstigningen. \u00c6ndringer i lydstyrken kan skyldes stormvind, regn eller torden.<br \/><a href=\"http:\/\/esamultimedia.esa.int\/images\/huygens_alien_winds_descent.mp3\" target=\"_blank\" rel=\"noopener\">Fil 1: Akustik under nedstigningen<\/a><\/p>\n<h2>2. Radarekkos fra Titans overflade<\/h2>\n<p>.myLink {color:blue}.myLink:hover {color:aa3333;text-decoration:underline}Denne optagelse er fremstillet ved at omdanne nogle af de radarekkosignaler, som Huygens modtog under de sidste par kilometer af sit fald, til lyd. Efterh\u00e5nden som sonden n\u00e6rmer sig jordoverfladen, stiger tonelejet og intensiteten \u2013 lidt ligesom lyden af en motorcykel, der giver gas.<\/p>\n<p>Ved at analysere ekkoerne vil forskerne kunne beregne \u00e6ndringer i sondens h\u00f8jde. De vil m\u00e5ske endda kunne afg\u00f8re, om overfladen var fast eller flydende, ru eller glat.<br \/><a href=\"http:\/\/esamultimedia.esa.int\/images\/huygens_alien_winds_descent_radar.mp3\" target=\"_blank\" rel=\"noopener\">Fil 2: Radarkonvertering<\/a><\/p>\n<p>Kilde: ESA\/NASA\/ASI\/HASI-teamet (M. Fulchignoni)<\/p>\n<nav class=\"related\" aria-label=\"Relateret\">\n<h2 class=\"related__heading\">Relateret<\/h2>\n<div class=\"grid related__grid\">\n<div class=\"grid-item\">\n<article class=\"card focuson agency\"><a class=\"card__link\" href=\"http:\/\/www.esa.int\/SPECIALS\/Kids_Comic\/index.html\" target=\"_blank\" rel=\"noopener\"><\/p>\n<figure class=\"thumbnail\"><span class=\"dimmer\"><\/span><\/figure>\n<header class=\"entry\">\n<h3 class=\"heading\">comic_episode03_strillo<\/h3>\n<\/header>\n<p><\/a><\/article>\n<\/div>\n<\/div>\n<\/nav>","protected":false},"excerpt":{"rendered":"<p>Among the many scientific achievements of Huygens was the first ever recording of sounds sent back from another world. During the long parachute descent through the satellite\u2019s dense atmosphere, the [&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\/2005\/01\/sounds_of_an_alien_world2\/17868894-2-eng-GB\/Sounds_of_an_alien_world.jpg","esa_banner_description":"Sounds of an alien world","esa_banner_credit":"ESA\/NASA\/JPL & Observatoire de Paris-Meudon (M. Fulchignoni)","esa_banner_licence":"ESA Standard Licence","esa_banner_detail_url":"https:\/\/www.esa.int\/ESA_Multimedia\/Images\/2005\/01\/Sounds_of_an_alien_world2","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":[10,11,12],"tags":[2],"panel":[],"language":[],"age":[],"duration":[],"resource_type":[],"audience":[],"wf_post_folders":[],"class_list":["post-968","post","type-post","status-publish","format-standard","hentry","category-learn","category-our-universe","category-planets-and-moons","tag-background-article"],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"","_links":{"self":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/968","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/comments?post=968"}],"version-history":[{"count":5,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/968\/revisions"}],"predecessor-version":[{"id":4761,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/posts\/968\/revisions\/4761"}],"wp:attachment":[{"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/media?parent=968"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/categories?post=968"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/tags?post=968"},{"taxonomy":"panel","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/panel?post=968"},{"taxonomy":"language","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/language?post=968"},{"taxonomy":"age","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/age?post=968"},{"taxonomy":"duration","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/duration?post=968"},{"taxonomy":"resource_type","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/resource_type?post=968"},{"taxonomy":"audience","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/audience?post=968"},{"taxonomy":"wf_post_folders","embeddable":true,"href":"https:\/\/kids.esa.int\/da\/wp-json\/wp\/v2\/wf_post_folders?post=968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}