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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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r9 m( ~: D2 i4 k; RCOVER 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.) g' J4 z" P' H& o, Q2 [1 l: R8 i% B+ e4 F
Image: NASA Ames Research Center/SETI Institute/Jet Propulsion Laboratory–California Institute of Technology 5 c0 B, `/ F2 t9 J8 D
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