{"id":188081,"date":"2025-12-14T17:25:41","date_gmt":"2025-12-14T17:25:41","guid":{"rendered":"https:\/\/www.europesays.com\/pt\/188081\/"},"modified":"2025-12-14T17:25:41","modified_gmt":"2025-12-14T17:25:41","slug":"nasa-perde-contacto-com-maven-sonda-que-orbita-marte-ha-11-anos","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/pt\/188081\/","title":{"rendered":"NASA perde contacto com Maven, sonda que orbita Marte h\u00e1 11 anos"},"content":{"rendered":"<p class=\"wp-caption-text top\">NASA<\/p>\n<p><img decoding=\"async\" loading=\"lazy\" class=\"size-kopa-image-size-3 wp-image-716691\" src=\"https:\/\/www.europesays.com\/pt\/wp-content\/uploads\/2025\/12\/9115c10980645c41313f244ac1a377f7-783x450.jpg\" alt=\"\" width=\"700\" height=\"402\"  \/><\/p>\n<p class=\"wp-caption-text bot\">Sonda Maven orbita Marte<\/p>\n<p><strong>Foi uma falha repentina na liga\u00e7\u00e3o. Foram interrompidas observa\u00e7\u00f5es cruciais da atmosfera e prejudicado apoio a miss\u00f5es rob\u00f3ticas.<\/strong><\/p>\n<p>A <strong>Maven<\/strong> \u00e9 uma <strong>sonda<\/strong> que foi lan\u00e7ada pela NASA em 2013. Est\u00e1 a <strong>orbitar Marte<\/strong> desde 2014.<\/p>\n<p>A prioridade era investigar a <strong>alta atmosfera<\/strong> de Marte e perceber a intera\u00e7\u00e3o do ambiente marciano com o vento solar.<\/p>\n<p>Os investigadores, gra\u00e7as a esta an\u00e1lises, refor\u00e7aram a hip\u00f3tese de que o Sol desempenhou um papel decisivo na eros\u00e3o atmosf\u00e9rica ao longo de milhares de milh\u00f5es de anos.<\/p>\n<p>A Maven tamb\u00e9m passou a ser essencial para a <strong>infraestrutura operacional da NASA<\/strong> em Marte: funcionava como retransmissora de comunica\u00e7\u00f5es para os rovers Curiosity e Perseverance.<\/p>\n<p>Mas, na ter\u00e7a-feira passada, a NASA <a href=\"https:\/\/science.nasa.gov\/blogs\/maven\/2025\/12\/09\/nasa-teams-work-maven-spacecraft-signal-loss\/\" data-wpel-link=\"external\" target=\"_blank\" rel=\"nofollow external noopener noreferrer\" class=\"ext-link\">comunicou<\/a> que<strong> perdeu o contacto com essa sonda.<\/strong><\/p>\n<p>\u00c9 uma perda de comunica\u00e7\u00e3o considerada <strong>grave;<\/strong> a sonda Maven deixou de responder abruptamente durante o fim-de-semana passado, depois de ter desaparecido atr\u00e1s de Marte. N\u00e3o voltou a haver contacto.<\/p>\n<p>Todos os sistemas da Maven operavam de modo nominal antes da interrup\u00e7\u00e3o.<\/p>\n<p>O problema foi, ao emergir da regi\u00e3o de oculta\u00e7\u00e3o \u2013 algo habitual nas sondas que orbitam Marte \u2013 reinou o <strong>sil\u00eancio.<\/strong> Deixou de haver o sinal de r\u00e1dio que as equipas de controlo aguardavam.<\/p>\n<p>A NASA disse \u00e0 <a href=\"https:\/\/apnews.com\/article\/nasa-mars-orbiter-maven-c59f534dc51b55dc5387309b93064f77\" data-wpel-link=\"external\" target=\"_blank\" rel=\"nofollow external noopener noreferrer\" class=\"ext-link\">Associated Press<\/a>, que j\u00e1 tem engenheiros a fazer uma investiga\u00e7\u00e3o detalhada para determinar a causa da falha e tentar restabelecer o contacto com a sonda. Mas n\u00e3o sabe quando vai restabelecer a comunica\u00e7\u00e3o.<\/p>\n<p>Mas h\u00e1 outras sondas a orbitar Marte, a funcionar: Mars Reconnaissance Orbiter e Mars Odyssey.<\/p>\n<p>    <a href=\"https:\/\/zap.aeiou.pt\/subscrever-newsletter\" data-wpel-link=\"internal\" rel=\"nofollow noopener\" target=\"_blank\">&#13;<br \/>\n        <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-575475\" src=\"https:\/\/www.europesays.com\/pt\/wp-content\/uploads\/2025\/12\/1765389371_545_2d51fe4a0ba54894421ead1809309ed9-1-450x140.jpg\" alt=\"Subscreva a Newsletter ZAP\" width=\"450\" height=\"140\"\/>&#13;<br \/>\n    <\/a><\/p>\n<p>                <a href=\"https:\/\/whatsapp.com\/channel\/0029VaIC4EE2f3EJZPPSbR34\" data-wpel-link=\"external\" target=\"_blank\" rel=\"nofollow external noopener noreferrer\" class=\"ext-link\">&#13;<br \/>\n                    <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-575475\" src=\"https:\/\/www.europesays.com\/pt\/wp-content\/uploads\/2025\/12\/1765389371_770_c68c559d956d4ca20f435ed74a6e71e6.png\" alt=\"Siga-nos no WhatsApp\" width=\"175\" height=\"64\"\/>&#13;<br \/>\n                <\/a><\/p>\n<p>                <a href=\"https:\/\/news.google.com\/publications\/CAAiEHRwZondIV71PDjWNoqMduEqFAgKIhB0cGaJ3SFe9Tw41jaKjHbh?hl=en-US&amp;gl=US&amp;ceid=US%3Aen\" data-wpel-link=\"external\" target=\"_blank\" rel=\"nofollow external noopener noreferrer\" class=\"ext-link\">&#13;<br \/>\n                    <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-575475\" src=\"https:\/\/www.europesays.com\/pt\/wp-content\/uploads\/2025\/12\/1765389372_556_5123dd8b087b644fdb8f8603acd1bad4.png\" alt=\"Siga-nos no Google News\" width=\"176\" height=\"64\"\/>&#13;<br \/>\n                <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"NASA Sonda Maven orbita Marte Foi uma falha repentina na liga\u00e7\u00e3o. Foram interrompidas observa\u00e7\u00f5es cruciais da atmosfera e&hellip;\n","protected":false},"author":2,"featured_media":188082,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[443,109,107,108,1008,2559,1149,32,33,105,103,104,106,110],"class_list":{"0":"post-188081","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-ciencia-e-tecnologia","8":"tag-astronomia","9":"tag-ciencia","10":"tag-ciencia-e-tecnologia","11":"tag-cienciaetecnologia","12":"tag-espaco","13":"tag-marte","14":"tag-nasa","15":"tag-portugal","16":"tag-pt","17":"tag-science","18":"tag-science-and-technology","19":"tag-scienceandtechnology","20":"tag-technology","21":"tag-tecnologia"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@pt\/115719092803055079","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/posts\/188081","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/comments?post=188081"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/posts\/188081\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/media\/188082"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/media?parent=188081"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/categories?post=188081"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/pt\/wp-json\/wp\/v2\/tags?post=188081"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}