Nasa has found a twin Earth orbiting a star like the Sun in the Milky Way. Kepler 452b - which has been dubbed Earth 2.0 - is six billion years old, has a 385 day year and orbits its star at the same distance as us. It is 1,400 light-years away in the constellation Cygnus. This image compares Earth, left, to Kepler-452b, which is about 60 percent larger.
Picture: NASA
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