One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.

地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的.

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Extraterrestrial life represents an enormous gap in our knowledge of nature.

太空是否存在生命,这是我们对自然认识上的空白.

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For those who hanker after extraterrestrial life that is a pity.

这对那些热衷外星生物的人来说或多或少有些遗憾.

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The search for extraterrestrial life actually involve involves some earth central Earth - centered science, too.

外星生命搜寻包括也包括地心科学.

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But it's important to keep in mind that popular depictions of extraterrestrial life are likely wrong.

但牢记各种广泛流行的关于搜寻地外生命的描述很可能是错的.

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IF EXTRATERRESTRIAL life were to exist, it would need a planet on which to evolve.

如果真有外星人, 那他们需要有个可以在上面演化的行星.

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Hatonn spoke of the formidable opposition to acknowledging the existence of extraterrestrial life.

Hatonn提及了要承认ET存在 所面临的巨大阻碍.

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The search for extraterrestrial life actually involves some earth center sciences Earth - centered science, too.

事实上寻找外星生命也涉及一些基于地球的科学.

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