The origin of life on earth is a question that interests astronomers.
地球上生命的起源是个使天文学家感兴趣的问题。
This round of Mars missions hopes to answer lingering questions which may cast light on the nature and origin of life on Earth.
这一趟的火星任务希望能解答长久以来的疑惑，这或许能对地球生命的本质和起源有进一步的了解。
But finding microbes that are unusually clever at adapting to hostile environments tells us nothing about the origin of life on Earth - or anywhere else in the universe for that matter.
但是寻找这种不能智能应对有害环境的微生物并不能告诉我们地球上或者宇宙其他地方生命的起源。
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