The Big Bang is the beginning of the Universe as we know it with our current laws of physics. What happened before that we don't know because we don't have the physics or any evidence to explain the before. We at this point can only tell what's happened since...there is a few theories like String/M Theory but there no way to prove/test those theories at present.

The universe is expanding, not contracting and it's speeding up. There isn't enough matter in the universe (not even enough dark matter) to reverse the universe and pull everything back. The universe will keep on expanding and eventually it will reach a point where there will be not enough of the appropriate gases to form stars, the universe will go dark.
Melkane Reviewed by Melkane on . wtf happened before the big bang? i was high one day and was thinking about the big bang and stuff. and thought what happened before the big bang? scientist always talk about the big bang and everything that happened after that, but none talk about before the big bang? Rating: 5