The Scientific Method simply requires letting “reality speak for itself”.
The chief characteristic which distinguishes a scientific method of inquiry from other methods of acquiring knowledge is that scientists seek to let reality speak for itself, supporting a theory when a theory’s predictions are confirmed and challenging a theory when its predictions prove false.
The reality of Spiral Galaxies and the Solar System speaks loud and clear.
Johannes Kepler published his first two laws of planetary motion in 1609 after analyzing the astronomical observations of Tycho Brahe and published his pivotal third law in 1619:
The orbit of every planet is an ellipse with the Sun at one of the two foci.
A line joining a planet and the Sun sweeps out equal areas during equal intervals of time.
The square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.
Modern observational data indicates that Johannes Kepler’s laws of planetary motion are as true today as they were four hundred years ago.
Rene Descartes built upon the observational laws of planetary motion [as defined by Johannes Kepler] and published his Vortex Theory of celestial mechanics in 1644:
Descartes’ vortex theory of planetary motion proved initially to be one of the most influential aspects of Cartesian physics, at least until roughly the mid-eighteenth century. A vortex, for Descartes, is a large circling band of material particles. In essence, Descartes’ vortex theory attempts to explain celestial phenomena, especially the orbits of the planets or the motions of comets, by situating them (usually at rest) in these large circling bands. The entire Cartesian plenum, consequently, is comprised of a network or series of separate, interlocking vortices.
Descartes also distinguishes between different forms and sizes of matter in which rough matter resists the circular movement more strongly than fine matter. Due to centrifugal force, matter tends towards the outer edges of the vortex, which causes a condensation of this matter there. The rough matter cannot follow this movement due to its greater inertia—so due to the pressure of the condensed outer matter those parts will be pushed into the center of the vortex. According to Descartes, this inward pressure is nothing else than gravity.
Modern observational data is supportive of Rene Descartes Vortex Theory [based upon a network of interlocking vortices] and shows that vortices are also embedded within vortices.
Specifically, the Solar System contains other embedded vortex systems: