欧阳自远称，火星计划另外一个重要目标是，探测地球以外的太阳系，并将其它类地行星的起源与太阳系的形成相比较。

Ouyang said another important goal of the Mars mission was to detect solar systems beyond earth's reach and to compare the origins of earth-like planets with the formation of the solar system.

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美国宇航局三大探测目标就是探测地球之外的世界，这三大行星都有宏大的目标，搜索类地行星。

NASA probe of the three major goal is to detect the earth outside world, the three planets has an ambitious goal, search terrestrial planets.

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戴明指出，确定水的探测技术是发现类地行星的关键步骤，这种行星可能拥有水和其他与生命相关的重要分子。

Nailing down the technique for the detection of water is a key step toward finding Earth-like planets that have water and other key life-related molecules, Deming said.

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