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NASA科学家：40多年前，人类已经在火星上发现了生命
source link: https://tech.sina.com.cn/d/s/2019-10-12/doc-iicezzrr1662412.shtml
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我们知道，人类至今尚未发现地外生命存在的直接证据，但美国航空航天局（NASA）的吉尔伯特·莱文（GilbertV。Levin）却不这么认为。莱文是上世纪70年代NASA“海盗号”火星探测任务中，一项搜寻生命的试验的项目负责人。为了寻找生命活
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