The preposition is followed by its object (and words that modify the object in the prepositional phrase). A preposition is a word that occurs before a noun/pronoun in a clause. Preposition means, pre-before and position-the object's location.
The most widely accepted scientific explanation for the formation of the Solar System is called the Solar Nebular Model. According to this model, the entire Solar System formed around 4.5 billion years ago from the gravitational collapse of a small fraction of a giant molecular cloud, also known as a nebula.
Further developments indicate that the carefully orchestrated events on early Earth played an even more critical role in establishing this planet's habitability. Without those events, Earth would not enjoy an abundance of liquid water or the life-essential plate tectonics it facilitates. Consider this brief description of how the solar system formed. A gas cloud began collapsing, resulting in a disk of material around the protosun at the center of the cloud.