A)before the bigbang.there was alot of nothing packed into nothing.matter and time.sapce and stars did not exist till then scientisys havent foind a way yet to know wjat was tjere before the big bang.so we cannot sah stars exploded or a black hole died.but whay we can say is thatba very dense pinprick.very very very very very dense pinprick of nothing ness expanded.and created matter as it heated up
