A sphere is a symmetrical geometrical object.
Thus, in three dimensions, a mathematical sphere is considered to be a two-dimensional spherical surface embedded in three-dimensional space, rather than the volume contained within it (which mathematicians would instead describe as a ball). The fixed point is called the center or centre, and is not part of the sphere itself.

The Sphere Project is dedicated to creating the most captivating and visually appealing spheres contributed by different people.

If you think you can do better, try it... Compete with others...