Question: whats the big bang

Zena Hadjivasiliou answered on 19 Mar 2015:

The bing bang is the best theory scientists have at the moment to explain how the universe was created! The bing bang theory says that all the matter that makes up the universe was concentrated into a single point before it exploded (hence the big bang!) and started to expand making up what we now call the universe! The evidence we have today supports the theory but the more we study the universe the more we find out and maybe we will come up with a new and better theory in the future!