Why are planets round?

Let us ask what makes a planet round? Is it just luck? Or is it logic? The answer is logic. The round shape indicates a perfect balance; the distance of any point on the surface of a sphere and the center is always even from all sides. But is balance important? Yes, the laws of physics are the laws of balance in physical nature. Newton wrote, “For every action there is an equal and opposite reaction,” indicating balance.

the rule of balance

The result of a physical interaction between two bodies is the establishment of balance.

Bingo! We have discovered the root cause: Why is the earth round? For the establishment of balance. However, our answer, though most fundamental, is philosophical. All root, fundamental causes are logical. But science is not the study of root, logical causes. It is the study of immediate, direct, and most of all physical causes. These physical causes however follow the guidance of root, logical causes, as in the example above. So, let us see if we can answer the question: What makes a planet round scientifically, in other words physically.

A physical interaction must involve at least two physical bodies. The two bodies in the physical interaction are Matter; that is obvious. But what is the other body that applies the equal and opposite reaction against matter? Matter does not just collapse in on itself forming a beautifully round planet. Something must be forcing it to do so, equally from all sides. This something is subtle: space itself.

Now let us apply the earth/space balance to answer our question, why is Earth round: Matter, simply by existing, exerts an action, a force against space; evenly against all dimensions as the rule states, and space exerts an equal and opposite force evenly to all sides of matter. This interaction achieves balance. Mystery solved! Planets are round because space applies an even force from all angles.

Gravity as balance

Gravity is the establishment of balance between two opposing bodies, matter against space. The earth/space balance is equal in force and opposite in direction

Gravity as we see is not innate and self-evident to matter.  We must remember it is a physical cause-and-effect phenomenon. Matter initiates the action and space is there to return it.

A sphere is a fully balanced figure from all sides. A pyramid, a cube, or any other shape would indicate imbalance and thus cannot exist in outer space. But let us imagine that the sun was another shape, for example a cube. What would happen to the orbital paths of the planets in this case? Would they still be round? The cube shape would indicate a gravitational imbalance. Where the surface of the sun protrudes most, the corners, there the gravity would be the weakest. This weakness would mean that the space surrounding the sun has an imbalance of gravity: this imbalance would result in square orbits for the planets. A pyramid sun would create a triangular orbit, while a rectangular sun would create rectangular orbits.

The shape of an astronomic body creates the shape of the orbital path of its surrounding satellites. A round planet creates a round path and indicates a balance of gravity.

Let us now discuss the shapes of galaxies. They too are around! We find a geometry in their shape, and thus gravitational balance. However, unlike planets, which are completely balanced spheres, galaxies more closely resemble wheels. Indeed, just like wheels, they rotate. Galaxies very much are like gigantic spinning wheels in the skies of universe. It appears that also like wheels they are especially designed for rotation. Indeed, it is rotation that gives them their very shape and suits them for their motion.

We now see the importance of the circle or roundness in the universe. It is the shape of balance and thus it is the shape of the heavenly bodies, their orbits, as well as galaxies.

We have witnessed balance in space, but should we not also witness balance over time? We can argue that rotation of all satellites about a center is the establishment of balance over time. If planets did not orbit their suns, but stayed in one place, then those solar systems would be “off” because one point in space would have a planet on it all the time, and none of the others would. Only when a planet rotates about the center, does it spend an even amount of time about the plane of space. The same argument may be made for spin about the axis: by spinning planets and suns evenly face all the angles of space. Likewise, galaxies too spin about the center in order to evenly face all the angles of space, establishing balance over time.

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George Shetuni

I am an author of fiction, essays, and poetry. I also enjoy blogging. In my blog, I write about self help, motivation, and literature.

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