但是，他估计定位这样一个行星还需要几年时间——知道开普勒计划的末期。

But, he estimated that pinpointing any Earth-like planets is still a few years off-near the end of the Kepler mission as it stands.

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美国国家航空航天局开普勒计划的首席调查员，Bill Borucki，谈寻找可能适合居住系外行星。

NASA's Kepler mission's principal investigator, Bill Borucki, talks about the search for exoplanets that might be habitable.

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据昨天的宣布称，通过传输技术，开普勒计划现已确认了超过 1200 颗地外候选星体，这还只是整个天穹的 1400 分之一的范围内罢了。

As announced yesterday, using the transit technique the Kepler mission has now identified over 1200 exoplanet candidates in a field of view that covers only about 1/400th of the sky.

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