比珠穆朗玛峰大一倍的彗星C/2017 K2(PanSTARRS)即将经过地球- 科学探索 - cnBeta

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C/2017 K2(PanSTARRS)20227142017Pan-STARRS C/2017 K2(PanSTARRS) C/2017 K2(PanSTARRS)C/2014 UN271C/2017 K2(PanSTARRS)C/2014 UN271 1300 3

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