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            <image:title>Dragonfly: o drone da NASA que vai desvendar Titã em 2034</image:title>
            <image:caption>Missão Dragonfly da NASA vai estudar moléculas orgânicas em Titã, explorando sua atmosfera e lagos de metano em 2034.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/big-bang-universo-penrose-cosmologia-ciclica</loc>
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            <image:title>A nova perspectiva de Penrose: A cosmologia cíclica em debate</image:title>
            <image:caption>Conheça a cosmologia cíclica de Penrose, que questiona o big bang e relaciona gravidade, consciência e mecânica quântica.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/por-que-nao-ouvimos-extraterrestres-paradoxo-fermi</loc>
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            <image:title>Por que ainda não ouvimos de extraterrestres? O paradoxo de Fermi</image:title>
            <image:caption>Entenda o paradoxo de Fermi e a zona de solidão que explicam por que ainda não detectamos vida alienígena no universo.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/detecção-nh3-europa-amônia-sistema-solar</loc>
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            <image:title>Detecção da assinatura de NH3 em Europa e seu impacto na habitabilidade</image:title>
            <image:caption>Descoberta do band de absorção de NH3 em Europa revela criovulcanismo e possibilidades de vida no oceano subsuperficial.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/jato-hidrocarbonetos-nucleo-oculto-iras-07251-0248-james-webb-phas</loc>
        <lastmod>2026-02-08</lastmod>
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            <image:title>Jato de hidrocarbonetos no núcleo oculto de IRAS 07251−0248</image:title>
            <image:caption>Detecção com JWST revela hidrocarbonetos gasosos em IRAS 07251−0248 e os processos de erosão de PAHs no meio interestelar.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/dinamica-estrelas-s-sgr-a-buracos-negros</loc>
        <lastmod>2026-02-06</lastmod>
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            <image:title>Dinâmica das estrelas s e fontes g em núcleos de matéria escura</image:title>
            <image:caption>Análise da dinâmica das estrelas S e fontes G em núcleos fermiônicos, comparando buracos negros e matéria escura.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/buracos-negros-alem-singularidade-horizonte-eventos</loc>
        <lastmod>2025-11-27</lastmod>
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            <image:title>Buracos negros: o que está além da singularidade e do horizonte?</image:title>
            <image:caption>Conheça as teorias e desafios sobre o horizonte de eventos, singularidades e a física além dos buracos negros.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/roman-era-arqueologia-galactica-bojo-via-lactea</loc>
        <lastmod>2025-11-26</lastmod>
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            <image:title>Roman e a Era da Arqueologia Galáctica no Bojo da Via Láctea</image:title>
            <image:caption>Telescópio Roman permitirá medir idades de estrelas no bojo galáctico via asterossismologia a partir de 2027.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/constante-cosmicologica-energia-escura-einstein-universo</loc>
        <lastmod>2025-11-19</lastmod>
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            <image:title>Constante cosmológica: do erro de Einstein ao modelo ΛCDM</image:title>
            <image:caption>Descubra como a constante cosmológica evoluiu da Relatividade Geral de Einstein ao modelo ΛCDM e a energia escura no universo.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/materia-escura-teste-forca-alem-gravidade</loc>
        <lastmod>2025-11-11</lastmod>
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            <image:title>Matéria escura: teste direto mostra limites de força além da gravidade</image:title>
            <image:caption>Teste direto limita força além da gravidade na matéria escura, usando lentes gravitacionais e crescimento estrutural.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/paradoxo-de-fermi-civilizacoes-alienigenas-raras</loc>
        <lastmod>2025-11-10</lastmod>
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            <image:title>Paradoxo de Fermi: por que civilizações alienígenas são tão raras?</image:title>
            <image:caption>Entenda a hipótese da mundanidade radical no paradoxo de Fermi e por que civilizações avançadas são tão escassas.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/saturno-aneis-sistema-solar-planetas-universo</loc>
        <lastmod>2025-11-09</lastmod>
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            <image:title>Saturno e seus anéis: 10 fatos que fazem dele a joia do sistema solar</image:title>
            <image:caption>Descubra os detalhes dos anéis de Saturno: idade, estrutura, luas pastoras e fenômenos únicos no sistema solar.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/regras-simples-fractais-caos-bagel-entropia</loc>
        <lastmod>2025-11-08</lastmod>
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            <image:title>Como regras simples criam fractais caóticos e o bagel da entropia</image:title>
            <image:caption>Descubra como iterações simples geram fractais caóticos, o conjunto de Mandelbrot e o complexo bagel da entropia.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/teegarden-ana-exoplanetas-vida-universo</loc>
        <lastmod>2025-11-07</lastmod>
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            <image:title>Teegarden: a estrela anã e seus planetas habitáveis e desafios</image:title>
            <image:caption>Descubra a Teegarden, anã com três exoplanetas, seus desafios de habitabilidade e estudos climáticos recentes.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/cinturao-kuiper-vs-disco-fomalhaut-exoplanetas-universo</loc>
        <lastmod>2025-11-06</lastmod>
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            <image:title>Cinturão de Kuiper vs. Disco de Fomalhaut: o papel dos planetas</image:title>
            <image:caption>Comparação do Cinturão de Kuiper e disco de Fomalhaut revela influência planetária via ressonância orbital e excêntricas.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/apophis-2029-missao-ramses-estudo-asteroide-sistema-solar-terra-esa</loc>
        <lastmod>2025-11-05</lastmod>
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            <image:title>Apophis 2029: como a missão Ramses vai estudar o asteroide de perto</image:title>
            <image:caption>Ramses vai monitorar Apophis em 2029, analisando sua órbita, composição e riscos durante a aproximação da Terra.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/materia-escura-lente-gravitacional-objetos-escuros</loc>
        <lastmod>2025-11-04</lastmod>
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        <priority>0.6</priority>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/lente-gravitacional-arco-luminoso-131.webp</image:loc>
            <image:title>Matéria escura: novo objeto invisível revela segredos do universo</image:title>
            <image:caption>Descoberta de objeto escuro por lente gravitacional em B1938+666 revela segredos da matéria escura fria a 10 bilhões de anos-luz.</image:caption>
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    </url>
    <url>
        <loc>https://spacetodaycombr.meublog.net/post/idade-planetas-sistema-solar-sol-estrela</loc>
        <lastmod>2025-11-03</lastmod>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/sistema-solar-planetas-formacao-85.webp</image:loc>
            <image:title>Idade dos planetas: o que a ciência sabe (e o que ainda não sabe)</image:title>
            <image:caption>Descubra como cientistas datam planetas e por que a idade dos corpos do Sistema Solar ainda gera debates intensos.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/explosoes-rapidas-de-radio-fra-universo</loc>
        <lastmod>2025-11-02</lastmod>
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        <priority>0.6</priority>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/explosao-rapida-radio-galaxia-195.webp</image:loc>
            <image:title>Explosões rápidas de rádio: tudo que você precisa saber</image:title>
            <image:caption>Descubra as últimas descobertas sobre FRBs, sua origem em galáxias e o papel na matéria bariônica do universo.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/orcs-circulos-gigantes-radio-universo-astronomia</loc>
        <lastmod>2025-11-01</lastmod>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/circulos-radio-orc-cosmos-487.webp</image:loc>
            <image:title>ORCs: os círculos de rádio gigantes que desafiam astrônomos</image:title>
            <image:caption>Descubra como ORCs formam anéis de rádio imensos em galáxias distantes, desafiando teorias sobre buracos negros e ventos galácticos.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/imagens-eht-materia-escura-buracos-negros-horizonte-eventos-universo</loc>
        <lastmod>2025-10-31</lastmod>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/imagem-buraco-negro-materia-escura-577.webp</image:loc>
            <image:title>Como imagens do EHT podem revelar sinais de matéria escura</image:title>
            <image:caption>Estudo usa imagens do EHT para detectar matéria escura ao analisar variações sutis na sombra de buracos negros.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/soyuz-russia-iss-espaco-astronautica-adaptacao-acoplador-asa-g-51-graus</loc>
        <lastmod>2025-10-30</lastmod>
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            <image:title>Soyuz-MS e ROS: adaptação do acoplador ASA-G para órbita de 51°</image:title>
            <image:caption>Conheça a adaptação do acoplador ASA-G na Soyuz-MS para órbita de 51° da estação russa pós-ISS e seu impacto técnico.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/trump-reavalia-isaacman-nasa-administrador</loc>
        <lastmod>2025-10-29</lastmod>
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            <image:title>Trump reavalia Isaacman para NASA: entenda o que está em jogo</image:title>
            <image:caption>Trump reconsidera Jared Isaacman para administrador da NASA em meio a desafios e troca na liderança da agência espacial.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/marte-ja-teve-um-oceano-novas-evidencias-em-aeolis-dorsa</loc>
        <lastmod>2025-10-28</lastmod>
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        <priority>0.6</priority>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/marte-aeolis-dorsa-estruturas-hidricas-914.webp</image:loc>
            <image:title>Marte já teve um oceano? Novas evidências em Aeolis Dorsa</image:title>
            <image:caption>Estudo na região Aeolis Dorsa revela canais e deltas que indicam a existência de um oceano antigo em Marte.</image:caption>
        </image:image>
    </url>
    <url>
        <loc>https://spacetodaycombr.meublog.net/post/fosfina-ana-marrom-biossinais-vida-universo</loc>
        <lastmod>2025-10-27</lastmod>
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        <priority>0.6</priority>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/ana-marrom-atmosfera-fosfina-389.webp</image:loc>
            <image:title>Fosfina em anã marrom: o que a descoberta revela sobre biossinais</image:title>
            <image:caption>Descubra como a fosfina foi detectada em anã marrom Wolf 1130C e seu impacto na busca por biossinais no universo.</image:caption>
        </image:image>
    </url>
    <url>
        <loc>https://spacetodaycombr.meublog.net/post/buracos-negros-binarios-quasar-oj287</loc>
        <lastmod>2025-10-26</lastmod>
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        <priority>0.6</priority>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/buracos-negros-binarios-quasar-oj287-670.webp</image:loc>
            <image:title>Primeira imagem de buracos negros em órbita no quasar OJ287</image:title>
            <image:caption>Cientistas capturam a primeira imagem dos dois buracos negros binários no quasar OJ287, a 5 bilhões de anos-luz.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/lado-afastado-da-lua-temperatura-polo-sul-chang-e6</loc>
        <lastmod>2025-10-25</lastmod>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/lua-lado-afastado-crateras-45.webp</image:loc>
            <image:title>Lado afastado da Lua: por que ele é mais frio que o lado visível?</image:title>
            <image:caption>Pesquisas da Chang'e-6 mostram que o lado afastado da Lua é 100 °C mais frio devido à menor atividade vulcânica e elementos KREEP.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/materia-escura-cola-invisivel-do-cosmos</loc>
        <lastmod>2025-10-24</lastmod>
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        <priority>0.6</priority>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/particulas-misteriosas-cosmos-814.webp</image:loc>
            <image:title>Matéria escura: de partículas quentes à cola invisível do cosmos</image:title>
            <image:caption>Descubra um novo modelo da matéria escura: de partículas quentes a cola invisível que mantém o cosmos unido.</image:caption>
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    <url>
        <loc>https://spacetodaycombr.meublog.net/post/nuvens-de-venus-tem-60-por-cento-de-agua</loc>
        <lastmod>2025-10-23</lastmod>
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            <image:title>Nuvens de Vênus têm 60% de água: veja o que a nova análise revela</image:title>
            <image:caption>Análise inédita revela 60% de água nas nuvens de Vênus, com menor acidez e sinais que ampliam estudos sobre vida.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/k2-18b-erros-comuns-bioassinaturas-exoplanetas</loc>
        <lastmod>2025-10-22</lastmod>
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        <priority>0.6</priority>
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            <image:title>K2-18b em debate: cinco erros comuns sobre bioassinaturas em exoplanetas</image:title>
            <image:caption>Analisamos dados do JWST sobre K2-18b e discutimos falhas comuns na detecção de bioassinaturas em exoplanetas.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/plato-esa-exoplanetas</loc>
        <lastmod>2025-10-21</lastmod>
        <changefreq>monthly</changefreq>
        <priority>0.6</priority>
        <image:image>
            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/telescopio-plato-com-escudo-painel-solar-627.webp</image:loc>
            <image:title>Telescópio espacial Plato pronto: 26 câmeras para caçar exoplanetas</image:title>
            <image:caption>Telescópio Plato finalizado para testes finais com 26 câmeras que monitoram 150 mil estrelas em busca de exoplanetas.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/james-webb-encontra-possiveis-estrelas-escuras-no-inicio-do-universo</loc>
        <lastmod>2025-10-20</lastmod>
        <changefreq>monthly</changefreq>
        <priority>0.6</priority>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/estrela-escura-universo-848.webp</image:loc>
            <image:title>James Webb encontra possíveis estrelas escuras no início do Universo</image:title>
            <image:caption>JWST identifica possíveis estrelas escuras no Universo primordial, com assinaturas únicas de matéria escura e hidrogênio.</image:caption>
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        <lastmod>2025-10-19</lastmod>
        <changefreq>monthly</changefreq>
        <priority>0.6</priority>
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            <image:title>Urano e Netuno: Gigantes de Gelo ou na Verdade de Rocha?</image:title>
            <image:caption>Nova pesquisa questiona se Urano e Netuno são realmente gigantes de gelo, sugerindo interiores rochosos e ricos em água.</image:caption>
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        <lastmod>2025-10-18</lastmod>
        <changefreq>monthly</changefreq>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/via-lactea-laboratorio-galaxias-610.webp</image:loc>
            <image:title>Análise da Via Láctea: um laboratório de galáxias anômalas</image:title>
            <image:caption>Descubra como a Via Láctea desafia modelos com seu histórico de colisões e satélites anômalos em evolução galáctica.</image:caption>
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        <lastmod>2025-10-17</lastmod>
        <changefreq>monthly</changefreq>
        <priority>0.6</priority>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/ana-marrom-wolf1130c-infravermelho-145.webp</image:loc>
            <image:title>Anãs marrons e fosfina: o que a descoberta em Wolf 1130C revela</image:title>
            <image:caption>Descubra como a fosfina em Wolf 1130C desafia a compreensão da química em anãs marrons e impactos na busca por vida.</image:caption>
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        <lastmod>2025-10-16</lastmod>
        <changefreq>monthly</changefreq>
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        <image:image>
            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/buraco-negro-supermassivo-galaxia-168.webp</image:loc>
            <image:title>James Webb revela buracos negros gigantes nas primeiras galáxias</image:title>
            <image:caption>James Webb identifica buracos negros supermassivos em galáxias antigas, desafiando modelos da formação e evolução cósmica.</image:caption>
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        <loc>https://spacetodaycombr.meublog.net/post/buracos-negros-campos-magneticos-mudam-rapido</loc>
        <lastmod>2025-10-15</lastmod>
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            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/buraco-negro-campo-magnetico-rapido-832.webp</image:loc>
            <image:title>Buracos negros: por que seus campos magnéticos mudam tão rápido?</image:title>
            <image:caption>Entenda por que os campos magnéticos ao redor de buracos negros mudam rápido e como isso revela processos complexos no universo.</image:caption>
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        <lastmod>2025-10-14</lastmod>
        <changefreq>monthly</changefreq>
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            <image:caption>Anãs vermelhas são comuns, mas dados do Sol indicam desafios para vida complexa em suas zonas habitáveis.</image:caption>
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        <lastmod>2025-10-13</lastmod>
        <changefreq>monthly</changefreq>
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            <image:title>Água em Júpiter: o que a nova simulação do Caltech revela</image:title>
            <image:caption>Simulação do Caltech mostra distribuição não homogênea de água na atmosfera de Júpiter e impacto das chuvas Jovianas.</image:caption>
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        <lastmod>2025-10-12</lastmod>
        <changefreq>monthly</changefreq>
        <priority>0.6</priority>
        <image:image>
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            <image:title>STELES no SOAR: como o Brasil inova na busca pelas primeiras estrelas</image:title>
            <image:caption>Brasil inova com o espectrógrafo STELES no SOAR para estudar o espectro de estrelas distantes e buscar a População III.</image:caption>
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        <lastmod>2025-10-11</lastmod>
        <changefreq>monthly</changefreq>
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        <image:image>
            <image:loc>https://ixymyhazbhztpjnlxmbd.supabase.co/storage/v1/object/images/generated/planeta-cha1107-7626-acrecao-gas-782.webp</image:loc>
            <image:title>Planeta errante Cha 1107-7626 engole gás a ritmo recorde</image:title>
            <image:caption>Descubra como Cha 1107-7626 cresce absorvendo gás a seis bilhões de toneladas por segundo em formação única.</image:caption>
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        <lastmod>2025-10-10</lastmod>
        <changefreq>monthly</changefreq>
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            <image:title>Redemoinhos de poeira em Marte: mapa inédito revela ventos e riscos</image:title>
            <image:caption>Análise inédita dos redemoinhos de poeira em Marte revela ventos, direções e riscos para futuras missões espaciais.</image:caption>
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            <image:title>3I/ATLAS: como identificar imagens reais e falsas do cometa</image:title>
            <image:caption>Saiba distinguir imagens reais e falsas do cometa 3I/ATLAS, com dados do Hubble, Webb, SPHEREx e ExoMars.</image:caption>
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            <image:title>Sergio Sacani Sancevero</image:title>
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        <lastmod>2026-04-03</lastmod>
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