Solar System Debris
 
 
Diagram of the Solar System's birth in four stages Birth of the Solar System (2002)
What you see here is an impression of our Solar System forming, from the initial supernova that started the contraction of a gas cloud. As the cloud collapses and spins, it gets flatter. Soon, pieces of material in the disc begin to lump together (accrete) to make ever larger bits that will one day form planets.
See also
Gas planets forming in a protoplanetary disc around the Sun.
The formation of the Solar System