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- 积分
- 17983
- 威望
- 17983
- 包包
- 26159
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2014年4月18日 Science
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2 r% a# i: z qCOVER 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.
8 Q: _2 c) r( n5 v+ ^4 m Image: NASA Ames Research Center/SETI Institute/Jet Propulsion Laboratory–California Institute of Technology ' k; y I5 i- m/ Y( ]* R
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