彗星：毁灭的预言者 Comets: Prophets of Doom [TVRip]

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资源信息： 中文名: 彗星：毁灭的预言者 英文名: Comets: Prophets of Doom 资源格式: TVRip 发行时间: 2008年 地区: 美国 语言: 英语 概述:

【类型】：航天/科学/记录 【集数】：共1集 【片长】：90分钟 【字幕】：无字幕 【服务器】：随机 【供源状况&分享时间】：非自己供源全天24小时 【内容简介】： 天上有些旅行者永远让我们充满了恐惧和惊奇。彗星们潜藏在我们太阳系最远的区域，它们在环绕我们太阳运行的过程中不时地抚过地球。但如此具有潜在威胁的东西可能拥有生命的钥匙么? 碳基生命是否来源于它们冰冻的内部? 它们可能包含着我们太阳系诞生的信息吗？ 通过美国国家航空航天局两次惊人的太空任务结果，我们能否揭开这些宇宙雪球的组成? 如果有彗星撞向地球我们能否保卫自己? They are celestial travelers which have forever filled us with fear and wonder. Lurking in the furthest reaches of our solar system, comets sometimes brush the Earth as they orbit our Sun. But could something so potentially destructive hold the key to life? Are the building blocks of carbon-based life forms frozen inside? Might they contain information about the creation of our solar system? At the conclusion of two spectacular NASA missions, COMETS: PROPHETS OF DOOM examines the scientific and historical record of comets, including man's reaction to them. Did a comet lead the Wise Men to Bethlehem? Did they foretell the death of kings, the destruction of civilizations? How did Halley's Comet provide Isaac Newton with the clues for his theories of gravity? Finally, what are these cosmic snowballs made of, and can we protect ourselves if one takes a collision course toward the earth?