This is how scientists believe the universe started.
Storyboard-Text
This is how scientists think the Universe started
Before planets or galaxies even existed the Universe was just a dense ball of atoms, proton and electrons.
Billions of years ago something caused this ball of atoms, protons, and electrons to explode. This caused dust, debris, and gasses to spread throughout space.
In a section of space , the explosion created a great big spinning cloud. That big cloud turned into a big flat spinning disk. That was the start of our solar system, billions of years ago.
In the middle of the flat spinning disk, the ball of gasses that was not expeled formed our sun.
Over a long time period the dust and debris from the explosion all came together to make our planets.