Solar Nebula Theory
By: Nicole Longstreet
The formation of our Solar System.
Around 4.567 billion years ago, it is believe that the Sun, Planets, Moons, and even asteroids were all formed by a Nebula, around the same time. The Solar Nebular Theory also explains that our Solar System formed from a Nebula cloud, formed by the gathering of gas and dust. It is told that stars are formed by dense clouds of molecular hydrogen, and are unstable. These clouds eventually collapse and form stars, and can also give away planets, but the process is said to take at least 100 million years.