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Exoplanet surveys have discovered the first planets with sizes between 2 and 3.5 Earth radii—slightly smaller than the size of the planet Neptune in our solar system. These planets, dubbed "mini-Neptunes," have been spotted so far around five low mass stars, but since low mass stars are the most common stars in the universe, and since mini-Neptunes are also expected to be abundant around them, astronomers anticipate finding many more mini-Neptunes in the near future.
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Exoplanet surveys have discovered the first planets with sizes between 2 and 3.5 Earth radii—slightly smaller than the size of the planet Neptune in our solar system. These planets, dubbed "mini-Neptunes," have been spotted so far around five low mass stars, but since low mass stars are the most common stars in the universe, and since mini-Neptunes are also expected to be abundant around them, astronomers anticipate finding many more mini-Neptunes in the near future.
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