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This is Scientific American's 60-Second Science. I'm Karen Hopkin. This'll just take a minute.

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Astronomers have searched far and wide for planets that are the right size and in the right place to support life.

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Well, maybe they should have set their sights a little closer to home.

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Because a new study suggests that there may be Earth-like planets just 13 light-years away.

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The results will be published in The Astrophysical Journal.

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To look for worlds that are about the same size as our own, scientists focused their attention, and the planet-seeking Kepler telescope, on red dwarves.

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These stars are about a third the size of our sun, which is a plus for detecting planets,

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because an Earth-size body would block more of a smaller star's light, making it easier to spot.

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Looking at the red dwarves that have already been scoped out by Kepler,

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the scientists discovered that 60 percent of them have planets smaller than Neptune,

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and 6 percent have planets as warm and cozy as our beloved Earth.

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Now, three out of every four stars in our galaxy is a red dwarf.

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So if some four billion stars in our neighborhood alone shine on an Earth-like planet, our extrasolar backyard may turn be a pretty lively place.

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Thanks for the minute, for Scientific American's 60-Second Science. I'm Karen Hopkin.

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