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In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris and there is an increasing problem of satellites mysteriously breaking down. With first-hand accounts from astronauts and experts, Horizon reveals the scale of the problem of space junk. Our planet is surrounded by hundreds of millions of pieces of junk moving at 17,000 miles...。本系列节目用历史小剧场和定格动画的表现形式，再现并解读中国古代人的妆容方式、装束习惯、饮食习惯和出行方式，展示了多姿多彩的古代娱乐生活。片中讲述了人们养猫的历史，介绍了古代文青的雅好，及古代冰鉴、文艺时钟、榫卯结构建筑、数十款全自动机器等科技的发明和应用，充分反映了古代中国人民的智慧，体现中华民族不同朝代的生活方式和精神面貌。。