Massive exoplanets may be more Earth-like than thought: 'Super-Earths' likely to have both oceans and continents

Massive terrestrial planets, called "super-Earths," are known to be common in our Milky Way galaxy. Now scientists report the odds of these planets having an Earth-like climate are much greater than previously thought. They conclude that most tectonically active super-Earths -- regardless of mass -- store most of their water in the mantle and will have both oceans and exposed continents, enabling a stable climate such as Earth's.

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