靜音
Nosso Planeta
As estrelas no céu são corpos celestes luminosos que brilham devido à fusão nuclear em seus núcleos. Elas são visíveis à noite quando o céu está escuro e desobstruído de nuvens. As estrelas são agrupadas em constelações, que são padrões aparentes formados pelas estrelas quando vistas da Terra. Existem bilhões de estrelas na nossa galáxia, a Via Láctea, e bilhões de galáxias no universo observável. Algumas estrelas são muito mais brilhantes do que outras devido à sua proximidade, tamanho e idade.
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