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Dec. 23, 2011
Kepler Telescope Narrows Hunt For Earth’s Twin
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| By tracking the blinking light of distant stars, NASA's Kepler space telescope has identified the first Earth-sized exoplanets, and another which orbits its star in the "Goldilocks zone," where liquid water--and possibly life--could exist. Principal investigator William Borucki talks about the newly discovered worlds. |
Produced by Christopher Intagliata, Associate Senior Producer
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