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2014年4月18日 Science; x1 i( @9 f5 W7 W6 i/ V x
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8 v# {- H! q6 ^# o) bCOVER 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 277.5 T, J7 \# q1 w6 q% r, j7 `8 Z
Image: NASA Ames Research Center/SETI Institute/Jet Propulsion Laboratory–California Institute of Technology
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总评分: 威望 + 20
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发表于 2014-4-18 20:06
