00537nam a2200097Ia 4500 170517s9999 xx 000 0 und d Known Universe: The Most Explosive Scientists believe that our universe started with a colossal explosion called the Big Bang. That powerful blast created all the matter in the universe and laid the groundwork for every explosion since. From exploding stars to asteroid impacts, Known... Science. http://topdocumentaryfilms.com/known-universe-the-most-explosive/ 334296 334296 0 0 0 CL CL 2017-05-17 0 2017-05-17 00:00:00 2017-05-17 DF