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Like Moths to a Flame, Alien Planets Can Flock to Nearest StarCredit: NASA/Ames/JPL-CaltechThis artist's concept illustrates the two Saturn-sized planets discovered by NASA's Kepler mission around a star called Kepler-9. A 3rd planet, just 1.5 times the size of Earth, may also be orbiting the star. This is the first star system found to have multiple transiting planets.
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