Astronomers find super-Earths orbiting a star 11 light-years away

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Astronomers find super-Earths orbiting a star 11 light-years away
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Astronomers find at least two super-Earths orbiting Gliese 887, a small star in a nearby planetary system

The proximity of this intriguing nearby planetary system will enable it to be studied more in the future, the researchers said.

This data was combined with other archival data including measurements of the star that went back 20 years. Since the star is much cooler than our sun, its habitable zone is much closer in range to the star — meaning that the planets closely orbiting it are also potentially within that range. The two super-Earths, however, are a little too close for comfort, meaning they're too hot to maintain liquid water.

If the star was as active as our sun, its stellar wind would erode and sweep away the atmospheres of the planets. The researchers believe that since the star is quiet, the planets around it could have retained their atmospheres. They may have atmospheres thicker than Earth's. "By studying the atmospheres of these planets scientists will be able to understand if the conditions are amenable for life," Jeffers said.

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