According to planetary scientist Robin Canup, all three of Pluto's satellites could trace back to a single impact.
据行星学家罗宾·卡纳普说，冥王星的所有三个卫星可以追溯回同一次撞击。
Hence the impact of this photograph: a distinctive planetary display captured beside a rare moonbow.
因此在这张照片上就有颗与众不同的行星出现在难得一见的月虹的旁边。
It will extend over the North Pole and thereby impact the planetary geophysical process.
它将延伸至北极，因此冲击行星的地质物理过程。
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