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Earth-sized planet found in star’s habitable zone

Exoplanet could have liquid water, which astronomers consider crucial for possible alien life

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2:00pm, April 17, 2014

A LOT LIKE HOME  An Earth-sized planet capable of hosting liquid water and four other worlds orbit the cool red star Kepler-186, as seen in an artist’s illustration. The planet, found in data from the Kepler space telescope, is the smallest planet found in a star’s habitable zone. 

Earth, meet your distant cousin. The Kepler space telescope has turned up a potentially water-bearing world nearly as small as our planet. The planet is the smallest one found in any star’s habitable zone, a temperate region surrounding a star that is suitable for liquid water.

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