When you hear about how a planet the size of mars, 4 billion

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>>7923007
Because we live in a 3 dimensional space and gravity exerts a uniform force form every point around an object in 3 dimensions.

it's the simplest and most durable shape for the forces exerted upon it by gravity in a 3D plane of existence.

If you were as massive as a planet you would take on a spherical shape too.

It's called accretion you dumbasses

>>7923007
Magnets.

>>7923007
>>7923009

Look up hydrostatic equilibrium
And planets arent perfectly spherical.
Earth is an oblate spheroid.
Venus is probably the most spherical object in this system on account of its ultra slow rotation.

DOES IT FUCKING MATTER YOU INSOLENT FOOLS!?!?!
what are you just going to enlarge yourself into a giant baker and mold it into a square!?
^^^^^^
This is about how ridiculous you guys are.
do the human race a favor, and end yourself so that you don't contaminate our already damaged species.

>>7923007
Lightning is a shit tier waifu desu

>>7923007

Because massive rocks hitting eachother very fast generates a lot of heat

This heat enables gravity to shape things much faster than it otherwise would

Gravity

>Perfect Circle

Two words- hydrostatic equilibrium. The Moon, being hot and more or less moldable, was pulled into a spheroid under its own gravity.
Consider a cube the size of, say, Venus. Now, suppose this entire cube is made of sand. It sounds ridiculous, but you'll see why I chose sand. Given that gravity is more or less spherical, the points of the cube would collapse, and it wouldpull itself into a sphere. That same could be said for fluid, silicates and other substances. Seeing as the Moon would have been mostly molten at the time, it would easily take on a spheroid shape after conglomerating.

>>7923007
neither the earth nor the moon are even close to being perfect spheres.

>>7923007
>how come the moon appears to be a perfect sphere from the outside?
Strictly speaking the Moon appears spherical from Earth because the eye is not precise enough to tell how it differs. From our vantage point it isn't too far off. As seen along the rotational axis it is a bit more egg shaped.

The theory of the formation of the Moon is a lot more complex than what you state. It has been suggested that not only Earth but later also the Moon was hit by a large impactor and thus created the difference between the near side face with the maria and the far side with very few maria and a more rugged terrain.

>>7923156
kek, Light confirmed for best waiFFu

Its caused by gravity, it basically spheres everything in space thats stationary and has mass

>>7923020
Just don't insult someone you do not know or you may end up as the dumbass.

>>7923007
Gravity and spinning shit pretty much.
Same reason the larger a planet is the closer it is to a perfect circle

This requires some high-volume computation to be explained