Finding a comet that's a match for Earth suggests more such matches may be out there, which means much more of our planet's water could have come from comets after all, Hartogh said.

Hartogh认为，发现一颗与地球有相似水的彗星便可表明会有更多类似这样的彗星存在于那一区域。也就是说，地球上更多的这样水有可能最终来源于这些彗星。

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Finding a comet that's a match for Earth suggests more such matches may be out there, which means much more of our planet's water could have come from comets after all, Hartogh said.

Hartogh认为，发现一颗与地球有相似水的彗星便可表明会有更多类似这样的彗星存在于那一区域。也就是说，地球上更多的这样水有可能最终来源于这些彗星。

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