A team of scientists that discovered the exoplanet were quoted by the USA Today online news as saying that the planet LHS 1140b was believed to be a rocky “Super-Earth.”
An exoplanet or extra-solar planet is a planet that orbits a star other than the Sun.
Over 2000 exoplanets have been discovered since 1988.
The scientists said “the joint exercise revealed a small dim star circled by a small tubby planet, nearly seven times more massive than Earth and probably made in good part of rock.
“Such rocky world seems a better bet for hosting life than do the puffy gas planets orbiting other stars.
They said astronomers had found roughly 20 Earth-sized planets that might support liquid water, adding that many were so far away that it would be a challenge to get to know them.
To date, more than 3,500 exoplanets have been discovered in over 2,600 planetary systems.
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