this post was submitted on 13 Sep 2023
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[–] [email protected] 3 points 1 year ago (5 children)

A planet 9 times the size of earth could still potentially host human life, we'd need to live high up in the sky so the gravity would be lower, but it's possible

[–] [email protected] 4 points 1 year ago (3 children)

That's not how gravity works.

[–] [email protected] 2 points 1 year ago (2 children)

Gravity becomes lower at higher altitudes, or what do you mean?

[–] Pantless_Paladin 3 points 1 year ago* (last edited 1 year ago)

The bigger aplanet, the further away its surface from its center of mass, which decreases gravity. A planet's surface gravity is mostly affected by its mass and density. This is why Saturn, despite being much bigger than Earth, still have roughly the same surface garvity.

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