{"id":3761,"date":"2025-09-23T16:22:03","date_gmt":"2025-09-23T19:22:03","guid":{"rendered":"https:\/\/overticeportal.com.br\/?p=3761"},"modified":"2025-09-23T16:22:06","modified_gmt":"2025-09-23T19:22:06","slug":"por-que-a-lua-esta-se-afastando-da-terra","status":"publish","type":"post","link":"https:\/\/www.portalam9.com.br\/?p=3761","title":{"rendered":"Por que a Lua est\u00e1 se afastando da Terra?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><em>Tempo de leitura: 2 minutos <\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ao contr\u00e1rio do que muitas pessoas possam imaginar, a Lua se afasta da Terra cerca de 3,8 cent\u00edmetros por ano. Os cientistas medem essa dist\u00e2ncia refletindo lasers em espelhos colocados na superf\u00edcie solar por sondas espaciais.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Esse movimento tem uma s\u00e9rie de consequ\u00eancias para o nosso planeta. Al\u00e9m disso, estudar esse fen\u00f4meno pode ajudar os pesquisadores a entender melhor as modifica\u00e7\u00f5es ocorridas ao longo de quatro bilh\u00f5es e meio de anos.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/img.odcdn.com.br\/wp-content\/uploads\/2025\/08\/Lua-bem-bonita-1024x683.jpg\" alt=\"Tremores na Lua podem gerar deslizamentos de terra e rochas, sendo um potencial perigo para futuras bases lunares, segundo estudo.\" class=\"wp-image-1161420\"\/><figcaption class=\"wp-element-caption\">Estudar esse movimento pode ajudar a entender mais sobre o passado lunar (Imagem: Domenichini Giuliano\/Shutterstock)<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-atracao-gravitacional-explica-afastamento\"><strong>Atra\u00e7\u00e3o gravitacional explica afastamento<\/strong><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Em artigo publicado no\u00a0<a href=\"https:\/\/theconversation.com\/the-moon-is-getting-slightly-farther-away-from-the-earth-each-year-a-physicist-explains-why-262106\" target=\"_blank\" rel=\"noreferrer noopener\">The Conversation<\/a>, Stephen DiKerby, pesquisador da Universidade Michigan State, nos Estados Unidos, explica que a um dos impactos da for\u00e7a da gravidade exercida pela Lua \u00e9 a mar\u00e9.<\/li>\n\n\n\n<li>\u00c0 medida que a Terra gira, as protuber\u00e2ncias formadas se movem e continuam apontando para o sat\u00e9lite natural por causa de sua atra\u00e7\u00e3o gravitacional.<\/li>\n\n\n\n<li>Ao mesmo tempo, h\u00e1 efeitos no pr\u00f3prio ambiente lunar, fazendo com que a Lua \u201cacelere\u201d.<\/li>\n\n\n\n<li>Isso significa ela \u00e9 puxada para frente, se afastando lentamente do nosso planeta.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/img.odcdn.com.br\/wp-content\/uploads\/2025\/04\/lua-e-terra-1024x609.jpg\" alt=\"lua e terra\" class=\"wp-image-1105316\"\/><figcaption class=\"wp-element-caption\">Estamos ficando mais distantes do nosso sat\u00e9lite natural (Imagem: Dima Zel\/Shutterstock)<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-lua-pode-escapar-da-atracao-gravitacional-da-terra\"><strong>Lua pode escapar da atra\u00e7\u00e3o gravitacional da Terra?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">No texto, o pesquisador afirma que, se avan\u00e7armos dezenas de bilh\u00f5es de anos no futuro, eventualmente a rota\u00e7\u00e3o da Terra poder\u00e1 desacelerar at\u00e9 que seja&nbsp;travada pela Lua. Nesse ponto, o afastamento cessaria completamente e s\u00f3 poder\u00edamos ver a Lua de um lado da Terra.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mas duas coisas devem impedir que isso aconte\u00e7a. Primeiro, em um bilh\u00e3o de anos ou mais, o&nbsp;Sol ficar\u00e1 mais brilhante. Isso significa que n\u00e3o haver\u00e1 grandes protuber\u00e2ncias de mar\u00e9 para fazer com que a Lua continue se afastando.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/img.odcdn.com.br\/wp-content\/uploads\/2025\/09\/atividade-solar-1-1024x576.jpg\" alt=\"\" class=\"wp-image-1185359\"\/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Sol ir\u00e1 interromper afastamento (Imagem: Antrakt2\/Shutterstock)<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">&#8220;Alguns bilh\u00f5es de anos depois, o Sol se expandir\u00e1 em\u00a0uma gigante vermelha, provavelmente destruindo a Terra e a Lua. Mas esses eventos est\u00e3o t\u00e3o distantes no futuro que voc\u00ea n\u00e3o precisa se preocupar com eles. Voc\u00ea s\u00f3 pode aproveitar as mar\u00e9s na praia, os eclipses solares e nossa bela Lua.&#8221;<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Stephen DiKerby, pesquisador da Universidade Michigan State<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Fonte: Olhar Digital <strong>\/<\/strong> Foto: Dr K Kar \/ iStock<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tempo de leitura: 2 minutos Ao contr\u00e1rio do que muitas pessoas possam imaginar, a Lua<\/p>\n","protected":false},"author":3,"featured_media":3762,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3761","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-curiosidades-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Por que a Lua est\u00e1 se afastando da Terra? 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