In the beginning there was nothing except for one small singularity
The singularity particle became very unstable and exploded, sending our universes elements everywhere, this is known as The Big Bang
The dust particle reacted with gravitational field in space which made it collapse and cause a nuclear reaction which caused heat and lead to the creation of stars
The sun then began to develop as it formed purple matter with gravity and eventually formed small reactions
Over time the Earth began to collide with many comets.