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wich is the twin planet of earth
Kepler-22b is the closest planet yet to Earth in terms of its potential for supporting life. However, it is so far away that we wouldn't be able to send any possible inhabitants a message, much less plan a visit. Still, "the discovery that the planet Kepler-22b is in the habitable zone around a sun-like star is a crucial step towards discovering life outside the solar system," said astrophysicist Mario Livio.


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