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1 janv. 443378869 av. J.-C. - 伽玛射线暴事件在短时间内发生几百个太阳一生中所释放的能量总和。此次发生在奥陶纪和志留纪之间的伽玛射线暴造成地球上60%的物种灭绝

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1 janv. 443378869 av. J.-C.

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