Today I discovered a theory on the mysterious big bang. it makes everything clear . this may be thought by another guy cause it is not that complicated.so dont blame me if it is already on the internet.it starts as the whole universe is empty space but some particles of hydrogen after sometime these started forming groups of atoms & as in the vacuum of space thus had some gravity & attracted more & more hydrogen thus increased gravity some became similar to stars & some became blackhole like these started absorbing the energy or mass around them & produced a large amount of energy through by nuclear fusion forming new elements & absorbed almost all the stars then the started absorbing each other & created a large mass thus more gravity & so more power. but due to the gravity the atoms started compressing & it was not long till it was smaller than earth it grew smaller & smaller but had a large amount of energy , so much it became unstable & it was so compressed it contained most of the atoms of the universe & then it exploded as a supernova but bigger & a lot more powerful. thus causing the big bang.it explains why hydrogen is abundant as it was on the outer surface of  the blackhole. as time passed universe expanded & we get what we have today.
               
                  I am sorry as I have limited amount of knowledge & dont know subjects like antimatter& others so my theory is a little limited as I am just a 14 year old kid who wrote what he thought about the universe & its origin.