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The hunt for aliens is on! After a distinguished career in cosmology Professor Martin Rees, the astr

BBC地平线纪录片。木星，太阳系八大行星中体积最大、自转最快的行星，从内向外的第五颗行星。本片讲述NASA的朱诺号木星探测器发回最新信息，揭开木星种种奇观的面纱。@www.aixiaoju.com

For centuries Egyptologists have believed that the Great Pyramids of Giza were designed as tombs. Bu

五集纪录片《地球》讲述了我们共同的家园地球在45亿年间的传奇变迁。从雨滴初落到“蓝色星球”的形成，从一片贫瘠到盎然生机，从生命伊始到人类出现……本片记录了地球演化过程中的史诗级瞬间。