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super-Earths: rocky worlds that are up to 10 times as massive as our own, and potentially habitable

Wouldn't the gravity on such a planet be 10 times as strong as Earth's? Is it feasible that life could exist on the surface, or only in an ocean?



Gravitational attraction scales as M/r^2, so if the planets have larger radii they won't have 10 times the gravitational attraction.

That said, any speculation about life on super earths should be taken with a huge grain of salt.


One super-grain of salt, to be precise.


Let's build a tiny eco system in a large centrifuge and see what happens.


Practical, in space. Start the ecosystem spinning, and it won't stop (essentially frictionless). Maybe a balloon/bag on one end of a rope, a weight on the other end.




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