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.
Like its neighbor Neptune, Uranus likely formed closer to the sun and moved to the outer solar system about 4 billion years ago, where it is the seventh planet from the sun. Structure. Uranus is one of two ice giants in the outer solar system (the other is Neptune). Most (80 percent or more) of the planet's mass is made up of a hot dense fluid of icy materials - water, methane and ammonia - above a small rocky core. Near the core, it heats up to 9,000 degrees Fahrenheit (4,982 degrees Celsius).