NASA's Kepler mission discovers two planets transiting same star

NASA's Kepler Mission has discovered the first confirmed planetary system with more than one planet transiting the same star. Today's announcement of the discovery of the two planets, Kepler 9b and 9c, is based on seven months of observations of more than 156,000 stars being monitored for subtle brightness changes as part of an ongoing search for Earth-like planets outside our solar system. Scientists designated the sun-like star Kepler-9...

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