But such transits have paved the way for what might prove to be one of the most vital breakthroughs in the cosmos—detecting Earth-sized planets orbiting other stars.

但是这样的凌日现象已经为被证明可能是宇宙中最重要的突破之一的说法铺平了道路，这个说法即找到那些围绕其他恒星轨道公转的和地球大小相似的行星。

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The presence of stars and planets vital to life the very being of matter itself is a wonder.

ECONOMIST: Cosmology and particle physics

Besides serving up music, movies and information about our favorite sports or entertainment stars, the online world has improved the delivery of services that are vital to our everyday lives.

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