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简介：最近堪萨斯大学的研究人员们发现，地球物种的大规模灭绝的周期与太阳系偏离银河系中心的周期有着近乎完美的巧合，在这些周期间，其中包括一些从化石记录上可以发现的大规模物种灭绝时期，地球上都对应的遭受了高强度的宇宙射线。研究人员称，这种宇宙射线或许能通过引起气候变化或基因突变等方式导致物种大灭绝。收起
地球上的灭绝事件--死之射线
地球上的灭绝事件--致命火山
地球上的灭绝事件--恐龙末日
地球上的灭绝事件--太空劫难
地球上的灭绝事件--连锁反应
地球上的灭绝事件--三叠纪 科学世界20100905
地球上的灭绝事件--冰火浩劫 科学世界20100912
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