| http://www.w3.org/ns/prov#value | - ounced Monday at NASA's Ames Research Center in Mountain View, was first detected by NASA's Kepler spacecraft two years ago, shortly after it began surveying 155,000 stars in the constellations Cygnus and Lyra.Dubbed Kepler 22b, the planet exists in what astronomers call the habitable zone of a solar system at whose center is a star only a little smaller and fainter than Earth's sun.
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