ELI5: Explain Like I'm 5

Graphical timeline from Big Bang to Heat Death

A timeline is like a picture in your head that shows events happenings in order. The Graphical Timeline from Big Bang to Heat Death is a timeline showing the events that happened since the very beginning of the universe until the very end. The Big Bang is what started everything. It was a huge explosion that made all of the matter and energy in our universe. From then, the universe has been expanding and getting colder. Eventually, all of the stars will use up all their energy, and the universe will become very cold and dark. This is called Heat Death. So, the Graphical Timeline from the Big Bang to Heat Death is the events that happened from the very beginning until the very end.