<p><BR/>Replying to:<BR/><DIV CLASS='Discussion_PostQuote'>Greetings this is my first post Why is the universe assymetrical instead of what it should be according to physics?. The big bang produced equal quantities of matter and antimatter that should have collided and converted the lot into pure radiant energy in the form of Gamma raysThis did not happen , luckily for us but has an explaination for this ever been found?Alan <br />Posted by alanstrange1</DIV><br /><br />Welcome to Space.com and great question.</p><p>As centsworth_II said, we don't really know the answer. We have some clues, but not enough to provide a firm answer. It appears that the decay rate for matter and antimatter may be different in our Universe, but that question is being examined by those at the forefront of high energy physics. Hopefully, when the LHC comes back online in the spring, we will get some more information to digest.</p> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>