The Space is vast. Once you realize how big our mother galaxy is, and how many billions of galaxies are present there, you’ll know how tiny we are.
We all have looked into the day and the night sky. We have seen the Sun, the Moon, and maybe on some occasions, other planets of our solar system, with our without a telescope.
But have you noticed something very similar about them? All galactic bodies are spheres or round. They aren’t a cube or a pyramid or flat (damn you flat earthers), but spheres. Why are they spheres?