But a new study says that by focusing on the organic molecules by which life on earth might have been jumpstarted, those scientists missed possibly millions of other cosmic compounds.
2
无论我们要发射宇宙飞机或是试图发现另一颗类似于地球的行星，我们都有赖于科学定律和理论的指引。
Whether we're launching a space shuttle or trying to discover another Earth-like planet, we rely on scientific laws and theories to guide us.
3
这些宇宙飞船一直都为地球科学的研究提供丰富的数据资源，但这一组照片的选择仅仅是从美感的角度出发。
These space craft have been prolific sources of data for earth scientist, but the new shots were chosen solely based on aesthetics.
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