科学家确定宜居系外行星的最小尺寸：0.8 倍地球半径，再小的话大气会逃逸
IT之家 5 月 12 日消息，人类对于宜居系外行星的搜寻从未停止，但成果寥寥。加州大学河滨分校的研究人员开发了一个新模型，用来评估行星大小对其保持大气层能力的影响，并确定了宜居行星的下限尺寸约为 0.8 倍地球半径。相关研究成果已在 arXiv 上发布预印本。 研究人员开发的“
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