I'm Prof. Doff and today I will be explaining the Solar Nebula and Condensation Theories.
These theories hope to explain how a solar system is formed.
The Solar Nebula Theory claims that under the influence of its own gravity, a nebula contracts. As it contracts, it spins faster and faster, This effect is known as conservation of angular momentum.
As a result of the spinning, the nebula flattens out to form a disk. This disk will continue to contract eventually forming a star. Its relationship there on out is similar to the one of this gas giant and its rings.
The Condensation Theory states that the planets were created with the left over space dust from the nebula.
The particles collided and stick to each other slowly growing in size. Eventually forming large objects in space, including planets.