this post was submitted on 13 Sep 2023
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[–] entropicdrift@lemmy.sdf.org 3 points 1 year ago (2 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

[–] SparkyTemper@sopuli.xyz 4 points 1 year ago (1 children)

That's not how gravity works.

[–] Spzi@lemm.ee 2 points 1 year ago (2 children)

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

[–] Pantless_Paladin@lemmy.world 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.

[–] afraid_of_zombies@lemmy.world 0 points 1 year ago

The planet is pretty close to it's sun.