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2014年4月18日 Science0 A# @' t: g+ }( e3 j; i/ k
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. J' U6 I+ k6 ?# ?- }. x7 v& y# VCOVER 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 277.2 k$ d# z# {/ ?8 {# o* v
Image: NASA Ames Research Center/SETI Institute/Jet Propulsion Laboratory–California Institute of Technology , @( _ m1 D) P$ K
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总评分: 威望 + 20
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发表于 2014-4-18 20:06
