{"id":263835,"date":"2021-07-23T00:29:42","date_gmt":"2021-07-23T03:29:42","guid":{"rendered":"https:\/\/www.notibras.com\/site\/?p=263835"},"modified":"2021-07-23T19:52:38","modified_gmt":"2021-07-23T22:52:38","slug":"tremores-marcam-anatomia-do-planeta-vermelho","status":"publish","type":"post","link":"https:\/\/www.notibras.com\/site\/tremores-marcam-anatomia-do-planeta-vermelho\/","title":{"rendered":"Tremores marcam anatomia do Planeta Vermelho"},"content":{"rendered":"<p>Ondas s\u00edsmicas de terremotos detectados pela sonda rob\u00f3tica InSight da Nasa ajudaram cientistas a decifrar a anatomia de Marte, incluindo as primeiras estimativas sobre o grande n\u00facleo de metal l\u00edquido do planeta, a espessura de sua crosta, e a natureza de seu manto.<\/p>\n<p>As descobertas reveladas na quinta-feira iluminam o que era antes um entendimento pobre sobre a estrutura interna do vizinho menor da Terra, e proporcionam algumas surpresas, al\u00e9m da confirma\u00e7\u00e3o de que o centro do Planeta Vermelho \u00e9 derretido.<\/p>\n<p>A sonda InSight, que pousou no planeta em 2018 para come\u00e7ar a primeira miss\u00e3o de estudo do interior profundo de Marte, j\u00e1 detectou mais de 700 tremores, a maior parte deles moderados.<\/p>\n<p>Ondas geradas pelos tremores variam em velocidade e tamanho ao atravessarem diferentes materiais dentro de um planeta. Dados do sism\u00f3grafo sobre mais de 30 tremores de Marte permitiram que o interior do planeta estivesse em foco.<\/p>\n<p>&#8220;A real import\u00e2ncia dessas descobertas \u00e9 que, pela primeira vez, n\u00f3s realmente temos medidas de dimens\u00f5es &#8211; tamanhos &#8211; dos blocos fundamentais do planeta Marte&#8221;, disse o geof\u00edsico planet\u00e1rio Bruce Banerdt, do Laborat\u00f3rio de Propuls\u00e3o a Jato da Nasa, principal investigador da miss\u00e3o da InSight.<\/p>\n<p>&#8220;Antes disso, tudo o que t\u00ednhamos eram compara\u00e7\u00f5es com a Terra, c\u00e1lculos te\u00f3ricos e infer\u00eancias indiretas de outras observa\u00e7\u00f5es como vest\u00edgios de is\u00f3topos qu\u00edmicos de meteoritos marcianos&#8221;, acrescentou Banerdt.<\/p>\n<p>O n\u00facleo de Marte, a camada geol\u00f3gica no centro do planeta, tem 3.660 quil\u00f4metros de di\u00e2metro, medida maior do que se pensava. Isso sugere que o n\u00facleo, composto em sua maioria por ferro e n\u00edquel, \u00e9 menos denso do que anteriormente conhecido, com elementos mais leves como enxofre, oxig\u00eanio, carbono e hidrog\u00eanio representando uma propor\u00e7\u00e3o inesperadamente grande da composi\u00e7\u00e3o.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ondas s\u00edsmicas de terremotos detectados pela sonda rob\u00f3tica InSight da Nasa ajudaram cientistas a decifrar a anatomia de Marte, incluindo as primeiras estimativas sobre o grande n\u00facleo de metal l\u00edquido do planeta, a espessura de sua crosta, e a natureza de seu manto. As descobertas reveladas na quinta-feira iluminam o que era antes um entendimento [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":263836,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[154],"tags":[],"class_list":["post-263835","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-na-rede"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tremores marcam anatomia do Planeta Vermelho - Notibras<\/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:\/\/www.notibras.com\/site\/tremores-marcam-anatomia-do-planeta-vermelho\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tremores marcam anatomia do Planeta Vermelho - Notibras\" \/>\n<meta property=\"og:description\" content=\"Ondas s\u00edsmicas de terremotos detectados pela sonda rob\u00f3tica InSight da Nasa ajudaram cientistas a decifrar a anatomia de Marte, incluindo as primeiras estimativas sobre o grande n\u00facleo de metal l\u00edquido do planeta, a espessura de sua crosta, e a natureza de seu manto. 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