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寻找“超级地球”大突破：110光年外行星存在水蒸气
source link: https://tech.sina.com.cn/d/s/2019-09-23/doc-iicezzrq7731827.shtml
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新浪科技讯北京时间9月23日消息，据国外媒体报道，科学家首次在一颗系外行星的大气层中发现了水蒸气信号，这是寻找可居住外星球的重大突破。这个“超级地球”距离我们的地球约110光年。据估计，该行星的体积是地球的两倍，质量是地球的8倍。英国伦敦大
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