《自然》[Nature]12年2月9日出版pdf全文

nero1981

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Hundreds of extrasolar planets have been found since the first confirmed discoveries in the mid-1990s. Many of them are large 'hot Jupiters', but steady improvements in observational capabilities have brought physicists closer to detecting smaller Earth-sized bodies, and now, the planet-hunting space observatory Kepler has discovered two in orbit around the Sun-like star Kepler-20. Planet Kepler-20 f has a radius almost identical to that of Earth, and Kepler-20 e is slightly smaller, at 0.87 times Earth's radius. The radii of the planets and the architecture of the system — at least three larger planets orbit the host star — suggest that the Earth-sized planets are rocky, and that the outer planet (Kepler-20 f) may have developed a thick atmosphere of water vapour., m1 @( J& m: E) [/ u/ {! l8 Q- w

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bluesuns

HOHO~~~~~~  

兔兔

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beautylive

今天临床的资料更新很多呀

再来一天

不错 不错  比我强多了  

ladybird

谢谢分享了!  

vsill

在线等在线等  

三星

支持你加分  

蚂蚁

正好你开咯这样的帖  

xiaomage

昨晚多几分钟的准备，今天少几小时的麻烦。