Nathalie Cabrol looks for life on Mars by studying extreme places on Earth, where the atmosphere is thin, ultraviolet radiation is high and the temperature is varied. See photos from her expeditions.
如果你想在火星上寻找生命，不妨先去智利东北部看看。事实证明，利坎卡布尔火山一带——大气稀薄、紫外线强烈、温度变化剧烈——与35亿年前的火星条件极为相似，而科学家认为正是在那之后，这颗红色星球才逐渐变得不再适合生命存在。这让它成为了SETI研究员娜塔莉·卡布罗尔（TED演讲：《火星如何揭开生命起源的秘密》）的完美实验室。她在那里致力于探索生命如何能在极端恶劣的条件下形成。在这里，卡布罗尔分享了她和团队自2002年以来九次智利考察的思考与照片。
前往利坎卡布尔的考察持续时间长达六周，大本营设在安第斯高原智利一侧海拔约17,000英尺处的一座前军事建筑内。这里的海拔令人难以承受：”第一个夜晚，我真的以为自己快要死了，”卡布罗尔说。
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斑马的条纹、豹子的斑点、人类的手指，这些自然界中的奇妙图案究竟是如何形成的？答案竟然来自破解二战谜机密码的天才数学家阿兰·图灵。他在多年前便提出了解释生物形态形成的数学模型，为这一自然之谜提供了关键线索。
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