I have been looking for information on the Internet. I have discovered that the shape of the planets is due to the gravity to which they are subjected, so they are spheres (,but they are not perfect spheres). This also has to do with the sphere: the sphere is the form of least energy and nature favors these forms.
I have also read different posts on the subject. So if these different forms existed I could not find a good explanation of why such a body would be generated or if there could be, for example, a system full of these "planets".
For example this post explains the possibility of having a planet with a cube form.
And this other one clarifies the existence of these types of nonspherical planets, but does not discuss its origin in depth.
So, under these meager knowledge of this theme, I asked myself the question: what would be the conditions and causes that would make a planet not spherical?
For the answer
I would like the answer also to resolve the doubts that stem from this, for example: Does it depend on the gravity of a single body? Do different magnetic fields intervene?
I do not put limits on "who" or "what" creates the causes or the origin of the form of the planet, but I look for an explanation other than "magic".
How long does this planet have to survive? Long; take the earth as a reference.
At what point do you define your planet as not spherical? You can at first sight see that it is not like a circle, like an ellipse or similar. Based on this Jupiter has a spherical body.
By "planet", do you mean the same as NASA or is, for example, a moon like Phobos a possible answer?
- It is massive enough to be rounded by its own gravity.
- It is not massive enough to cause thermonuclear fusion.
- It has cleared its neighbouring region of planetesimals.