Astronomers are also closing in on a possibly huge number of Earth-like worlds around other stars.

天文学家们同时还在对数量庞大的其他恒星系中可能的类似地球环境的星体进行筛选。

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Today, as ever, it has been about justice, for those 270 innocent American and Scottish citizens who fell to earth like so many doused stars on a cold night in late December.

CNN: Justice for Libya, and Pan Am victims

One recent study of more than 450 Sun-like stars within about 325 light-years of Earth indicated most had high iron content in their photospheres, or on their surfaces - again, evidence the stars had gorged themselves on planetary material.

BBC: Star 'eats' a planet