An international team of scientists has discovered a potentially habitable super-Earth orbiting within the habitable zone of a cool star that is a member of a triple-star system. This discovery demonstrates that habitable planets could form in more varied environments than previously thought. This is the fourth exoplanet found within the habitable zone of a star – the first being Gliese 581d, which was discovered last May. Super-Earth planets are two to 10 times more massive than Earth.

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