{"id":12899,"date":"2025-10-30T11:20:45","date_gmt":"2025-10-30T14:20:45","guid":{"rendered":"https:\/\/fenati.org.br\/?p=12899"},"modified":"2025-10-30T13:56:38","modified_gmt":"2025-10-30T16:56:38","slug":"fenomenos-luminosos-ligados-explosoes-nucleares","status":"publish","type":"post","link":"https:\/\/homolog.fenati.org.br\/en\/fenomenos-luminosos-ligados-explosoes-nucleares\/","title":{"rendered":"Fen\u00f4menos luminosos no c\u00e9u podem estar ligados a explos\u00f5es nucleares"},"content":{"rendered":"<p><strong>Explos\u00f5es nucleares &#8211;<\/strong> Um novo estudo sugere que as primeiras <a href=\"https:\/\/en.wikipedia.org\/wiki\/Nuclear_explosion\" target=\"_blank\" rel=\"noopener\">explos\u00f5es nucleares<\/a> da hist\u00f3ria podem ter deixado marcas luminosas no c\u00e9u, vis\u00edveis at\u00e9 mesmo em registros astron\u00f4micos. A an\u00e1lise revisitou observa\u00e7\u00f5es feitas nas d\u00e9cadas de 1940 e 1950 e identificou coincid\u00eancias entre as datas de testes at\u00f4micos e o aparecimento de luzes transit\u00f3rias em fotografias do espa\u00e7o.<\/p>\n<p>A pesquisa, conduzida por Stephen Bruehl, da Universidade Vanderbilt (EUA), e pela astrof\u00edsica Beatriz Villarroel, da Universidade de Estocolmo (Su\u00e9cia), analisou milhares de registros do Palomar Observatory Sky Survey (POSS-I) \u2013 o primeiro levantamento fotogr\u00e1fico completo do c\u00e9u do hemisf\u00e9rio norte, realizado entre 1949 e 1958. Nessas imagens, os cientistas observaram pontos de luz que surgiam e desapareciam sem explica\u00e7\u00e3o aparente.<\/p>\n<p><a href=\"https:\/\/fenati.org.br\/deepseek-palavras-imagens-desempenho-modelos\/\" target=\"_blank\" rel=\"noopener\"><strong>LEIA: DeepSeek prop\u00f5e substituir palavras por imagens para melhorar desempenho de modelos<\/strong><\/a><\/p>\n<p>Por muito tempo, esses brilhos foram atribu\u00eddos a falhas qu\u00edmicas nas placas fotogr\u00e1ficas. No entanto, o grupo liderado por Villarroel, que coordena o projeto VASCO, questionou essa hip\u00f3tese ao perceber que as ocorr\u00eancias seguiam padr\u00f5es espec\u00edficos. A equipe, ent\u00e3o, decidiu investigar se as atividades humanas poderiam estar por tr\u00e1s desses fen\u00f4menos.<\/p>\n<p>Ao cruzar as datas dos registros com as de testes nucleares realizados por Estados Unidos, Uni\u00e3o Sovi\u00e9tica e Reino Unido, os pesquisadores encontraram um padr\u00e3o surpreendente: os transientes apareciam at\u00e9 45% mais vezes em dias pr\u00f3ximos \u00e0s detona\u00e7\u00f5es. O pico ocorreu no dia seguinte aos testes, quando a probabilidade de surgirem brilhos era 68% maior.<\/p>\n<p>Al\u00e9m disso, o estudo encontrou correla\u00e7\u00e3o entre esses registros e relatos hist\u00f3ricos de objetos a\u00e9reos n\u00e3o identificados (UAPs). Quanto mais relatos de luzes misteriosas surgiam, maior era a chance de o telesc\u00f3pio ter captado um transiente na mesma \u00e9poca \u2014 em m\u00e9dia, 8,5% de aumento por relato.<\/p>\n<p>Os resultados indicam que as explos\u00f5es nucleares podem ter provocado perturba\u00e7\u00f5es atmosf\u00e9ricas ou luminosas detect\u00e1veis \u00e0 dist\u00e2ncia, deixando rastros sutis na astronomia hist\u00f3rica. Segundo os autores, os achados fornecem \u201csuporte emp\u00edrico adicional\u201d \u00e0 hip\u00f3tese de que parte dos fen\u00f4menos observados e relatados na \u00e9poca tinha origem real \u2014 e, possivelmente, humana.<\/p>\n<p><em><strong>(Com informa\u00e7\u00f5es de Olhar Digital)<\/strong><\/em><br \/>\n<em><strong>(Foto: Reprodu\u00e7\u00e3o\/Freepik)<\/strong><\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>An\u00e1lise de imagens antigas revela aumento de luzes misteriosas logo ap\u00f3s explos\u00f5es at\u00f4micas realizadas na Guerra Fria<\/p>","protected":false},"author":6,"featured_media":12900,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[13],"class_list":["post-12899","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-noticias","tag-sindical"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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