{"id":161,"date":"2025-10-14T13:28:27","date_gmt":"2025-10-14T11:28:27","guid":{"rendered":"https:\/\/lisa-nl.nl\/home\/lisa-lisa-nl\/"},"modified":"2026-08-11T11:33:16","modified_gmt":"2026-08-11T09:33:16","slug":"lisa-lisa-nl","status":"publish","type":"page","link":"https:\/\/lisa-nl.nl\/nl\/home\/lisa-lisa-nl\/","title":{"rendered":"LISA &#038; LISA-NL"},"content":{"rendered":"\n<div class=\"et_pb_section_0 et_pb_section et_section_regular et_block_section\"><div class=\"et_pb_row_0 et_pb_row et_block_row\"><div class=\"et_pb_column_0 et_pb_column et_pb_column_4_4 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_0 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module et_pb_text_align_center\"><div class=\"et_pb_text_inner\"><p>LISA &#038; LISA-NL<\/p>\n<\/div><\/div><\/div><\/div><div class=\"et_pb_row_1 et_pb_row et_block_row\"><div class=\"et_pb_column_1 et_pb_column et_pb_column_2_5 et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_image_0 et_pb_image et_pb_module et_block_module\"><span class=\"et_pb_image_wrap\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/lisa-nl.nl\/wp-content\/uploads\/2025\/10\/14ab99c77ea061cd776543a0867a5fda.png\" width=\"822\" height=\"445\" srcset=\"https:\/\/lisa-nl.nl\/wp-content\/uploads\/2025\/10\/14ab99c77ea061cd776543a0867a5fda.png 822w, https:\/\/lisa-nl.nl\/wp-content\/uploads\/2025\/10\/14ab99c77ea061cd776543a0867a5fda-480x260.png 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 822px, 100vw\" class=\"wp-image-75\" alt=\"LISA phase-locked interferometrie\" title=\"LISA phase-locked interferometrie\" \/><\/span><\/div><\/div><div class=\"et_pb_column_2 et_pb_column et_pb_column_3_5 et-last-child et_block_column et_pb_css_mix_blend_mode_passthrough\"><div class=\"et_pb_text_1 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>De Europese ruimtevaartorganisatie ESA lanceert midden jaren 2030 de eerste ruimtedetector voor zwaartekrachtsgolven: de Laser Interferometer Space Antenna (LISA).<\/p>\n<\/div><\/div><div class=\"et_pb_text_2 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>Zwaartekrachtsgolven zijn trillingen van de ruimte veroorzaakt door met name om elkaar cirkelende objecten zoals neutronensterren of zwarte gaten. Een beetje als dansende zwanen in een vijver, maar dan in drie dimensies. Hoe zwaarder de hemellichamen en hoe sneller ze rondcirkelen, des te krachtiger de zwaartekrachtsgolven. Vlak voor een botsing cirkelen ze het snelst om elkaar heen, wat soms resulteert in zwaartekrachtsgolven die krachtig genoeg zijn om te detecteren.<\/p>\n<\/div><\/div><div class=\"et_pb_text_3 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>LISA bestaat uit drie ruimtevaartuigen die hun onderlinge afstand in de gaten houden met laserstralen. Wanneer die afstand op en neer golft, weet de detector dat er een zwaartekrachtsgolf passeert. LISA wordt z\u00f3 gevoelig dat ze bij bepaalde golflengtes al de uitrekking van de ruimte opmerkt op een schaal van \u00e9\u00e9n op een triljard, ofwel een 1 met 21 nullen. Met LISA\u2019s armen komt dat neer op variaties van enkele picometers. Dat is ook nodig omdat de tot nu nog niet gedetecteerde superzware zwarte gaten miljarden lichtjaren ver weg liggen, en dus zijn hun zwaartekrachtsgolven afgezwakt als ze aankomen in ons zonnestelsel.<\/p>\n<\/div><\/div><div class=\"et_pb_text_4 et_pb_text et_pb_bg_layout_light et_pb_module et_block_module\"><div class=\"et_pb_text_inner\"><p>LISA achtervolgt de Aarde in een baan om de Zon, op ruim vijftig miljoen kilometer achterstand. Met armen van 2,5 miljoen kilometer is LISA in staat om trillingen met veel langere golflengtes te meten dan de detectoren op aarde zoals LIGO en Virgo. Daarmee kan ze luisteren naar superzware zwarte gaten van miljoenen zonsmassa\u2019s die om elkaar heen draaien en daarbij langere golflengtes produceren. LIGO en Virgo zijn alleen gevoelig voor botsingen tussen stellaire zwarte gaten en neutronensterren op tientallen miljoenen lichtjaren, omdat de bijbehorende korte golflengtes passen bij hun relatief korte meetarmen. Ook golven uit het verre heelal hebben lange golflengtes, zoals die van de chaotische periode vlak na de oerknal en van de eerste zaadjes van superzware zwarte gaten.<\/p>\n<\/div><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":97,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-161","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>LISA &amp; LISA-NL - SRON LISA-NL website<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lisa-nl.nl\/nl\/home\/lisa-lisa-nl\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"LISA &amp; 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