The Big Bang was a massive explosion that occurred approximately 14 billion years ago, causing the very hot and dense early universe to rapidly expand and form the structure of the universe we observe today. It explains how the universe evolved from a primordial singularity into the galaxies, stars, planets, and other astronomical objects we see in the present-day universe. This document provides a basic definition and overview of the Big Bang theory according to a project completed by Marco.

1. BIG BANG

2. THE BIG BANG WAS A VERY BIG
EXPLOSION

3. DEFINITION
The Big Bang is the name of a scientific theory that explains how the Universe
started, and then made the groups of stars (called galaxies) we see today.
In the Big Bang theory, the universe began as very hot, small and dense,
with no stars, atoms, form, or structure (called a "singularity"). Then about
14 billion years ago, space expanded very quickly (thus the name "Big
Bang").

4. The big bang creates galaxies: there are three types of
galaxies: Irregular spiral and elliptical

5. And in the galaxies there are planets,

6. There are also stars and asteroids

8. PROJECT DONE
BY
MARCO