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Super-Earth

A super-Earth is an extrasolar planet with a mass higher than Earth's, but substantially below the masses of the Solar System's ice giants, Uranus and Neptune, which contain 15 and 17 Earth masses respectively.

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Astronomers using Europe's HARPS telescope have discovered 50 new exoplanets orbiting nearby stars - including these 16 super-Earths, one of which lies within its star's habitable zone.

Contributed by El Dalhy

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