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2014年4月18日 Science4 n; |# {* ^1 N$ m/ T* y9 g+ Y* o% j
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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.! u5 H# F5 V8 e4 n4 H$ s/ _
Image: NASA Ames Research Center/SETI Institute/Jet Propulsion Laboratory–California Institute of Technology
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发表于 2014-4-18 20:06
