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2014年4月18日 Science
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R: n) l- j5 K3 L6 |7 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.
2 N( X# f; T4 t' k# L 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
