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
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.
The bigger a planet, the further away its surface is from its center of mass, which will decreases the force of gravity. A bigger planet does not equates to higher surface gravity, it’s a planet mass and density that mostly dictates this.
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
That’s not how gravity works.
Gravity becomes lower at higher altitudes, or what do you mean?
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.
The bigger a planet, the further away its surface is from its center of mass, which will decreases the force of gravity. A bigger planet does not equates to higher surface gravity, it’s a planet mass and density that mostly dictates this.
The planet is pretty close to it’s sun.