Postado emCiência e Ambiente

Resolvido mistério de 1.400 anos de estranho ‘sinal vermelho’ no céu do Japão

Home News Skywatching What might the “red sign” have looked like? (Image: © Illustration: Space.com; Aurora: Nora Carol/Getty) A scarlet fan spread across the skies over Japan 1,400 years ago, and it’s been puzzling astronomers ever since.According to historical records, on Dec. 30, 620, a “red sign” shaped like “a pheasant tail” appeared in the…