Mute
Explorador do Desconhecido
O céu é escuro à noite por causa de um fenômeno conhecido como Paradoxo de Olbers. Embora existam bilhões de estrelas no universo, ele não é infinito nem eterno, teve um começo, o Big Bang, há cerca de 13,8 bilhões de anos. Isso significa que só conseguimos ver a luz das estrelas cuja luz já teve tempo de chegar até nós. Além disso, o universo está em constante expansão, o que faz com que a luz de galáxias distantes se estique e enfraqueça, muitas vezes saindo da faixa visível. #ProvaDoAnjoKw
Follow
43
1
17
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