Kepler spots five Earth-sized planets in our galaxy that are in what is considered the habitable zone. Kepler also found a complete solar system with 6 planets orbiting a single sun-like star.
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NASA scientists have announced Kepler has spotted five planets about the size of Earth, orbiting stars in our galaxy.
These planets are orbiting in what is known as the habitable zone, which puts them at a distance from their suns where liquid water could exist. Liquid water is a key ingredient for life to form.
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http://www.cnn.com/2011/US/02/02/nas...ex.html?hpt=T2