25 年前
视频简介
穿越时空，解谜文脉传承的密码！文明探源，展现历史传奇！走近了不起的国宝，揭开尘封的历史真相；探寻每一件国宝背后鲜为人知的故事！《了不起的国宝》系列纪录片，通过每一件国宝的讲述，引出国宝背后那些鲜为人知的故事！。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...。
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