NASA Telescope Reveals Largest Batch of Earth-Size, Habitable-Zone Planets Around Single Star

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Wednesday, February 22, 2017 - 13:00
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NASA's Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.
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