hello sir.................when they talk abt a big bang they say that all particles were compressed to a point mass..................then they exploded and they r expanding now>>>>>>>>>>>>>>if so then they must be now expanding in some boundary of infinite distances........v know even blackhole is expanding when it acquires some mass..........................so whycant our universe b inside a massive black hole???????????????????????/

Shane Macguire , 11 Years ago

Grade upto college level