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.
Heliocentric and geocentric are two explanations of the configuration of the universe, including the solar system. The geocentric model says that the earth is at the center of the cosmos, and the planets, the sun and the moon, and the stars circles around it.The early heliocentric models consider the sun as the center, and the planets revolve around the sun.More about Geocentric. The most predominant theory of the structure of the universe in the ancient world was the geocentric model.he early heliocentric models consider the sun as the center, and the planets revolve around the sun. More about Geocentric. The most predominant theory of the structure of the universe in the ancient world was the geocentric model.