How Did the Solar System Form?

There are particles in space. These particles are protons (mostly). The protons are ionized hydrogen. All of this hydrogen is floating in space. There is a gravitational force acting on them as there is a gravitational force acting between everything. The force that this bean bag feels from another bean bag is there, but it is very small compared to the force on the Earth on the bean bag; so, the bean bag will fall essentially towards the earth. Similarly, these protons feel a very small gravitational force between them. Since the force is small, they move very slowly, and it takes them a long time (an astronomical amount of time) to fall towards each other. Eventually, these protons start running into each other. When the cloud is condensed enough, they protons collide fairly violently and stick together, giving off light and forming helium in this process. A star is born. The process continues and the star shines. Eventually, the hydrogen collides with the helium atoms to form lithium, the helium collides with helium to form beryllium, etc. Heavier elements are formed in the star as the star ages. During this process the atoms are trying to fall to the center, but they can't because the light from the inside keeps pushing the atoms back out -- There is an internal pressure supporting the size of the star.