通过分析这些“宇宙射线簇射”，物理学家们可以明确指出什么时候，来自哪里的什么东西撞击了地球。
By analysing these "showers", physicists are able to pinpoint what struck Earth and, sometimes, from where.
通过分析这些“宇宙射线簇射”，物理学家们可以明确指出什么时候，来自哪里的什么东西撞击了地球。
By analysing these "showers", physicists are able to pinpoint what struck Earth and, sometimes, from where.
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