2014年4月18日 Science $ _0 H4 |( u; y4 b5 w- a3 k# `! U5 \5 F' \ + d- F0 F+ [0 y; K5 d * B. S: D5 L6 u; Q2 m5 r
COVER Artist's concept of Kepler-186f, a planet located ~500 light-years from Earth in the constellation Cygnus. The discovery of Kepler-186f confirms that Earth-sized planets exist in the habitable zone of other stars (that is, the range of distances from a star wherein liquid water might pool on the surface of an orbiting planet) and signals a major step closer to finding a world similar to Earth. See pages 249 and 277. ! W# r1 ^) x% L1 a Image: NASA Ames Research Center/SETI Institute/Jet Propulsion Laboratory–California Institute of Technology 4 I1 X- R7 w5 I) Q j 9 j1 e# M: G5 Q- C* ^1 G( X+ h7 }0 c H# b5 y. I 作者: 千细胞 时间: 2014-4-19 11:10
谢谢作者: Tesla20 时间: 2014-4-19 15:20
多谢楼主作者: CoolCell 时间: 2014-4-19 17:15
看看作者: ww20140410 时间: 2014-4-20 08:24
多谢作者: gandolph 时间: 2014-4-20 09:14
谢谢楼主 - K. G2 p2 Z t" ^( H作者: ljs 时间: 2014-4-20 09:52