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Astronomy

The Likelihood of Plate Tectonics on Super-Earth Exoplanets

Quick fact

Many super-Earths may have a 'stagnant lid'—a single, immobile rocky crust—because their powerful gravity and thick lithosphere suppress plate movement, potentially leaving the planet volcano-poor and less habitable.

Why this is interesting

Picture Earth's surface breaking into puzzle pieces that drift and collide. Now imagine a planet twice the size, with crushing gravity and searing heat—would its surface behave the same way, or might it crack apart?

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The Likelihood of Plate Tectonics on Super-Earth Exoplanets

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