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.
Observed features any origin model of the solar system/planets must explain 1. Disk shape 2. Orbits in same plane, 3. For most planets, direction of motion and orbit are same (note peculiarities of Venus, Uranus, Pluto however) 4. Two planetary types: Inner terrestrial planets are high density, Jovian outer planets are low density).