Evidence about the Big Bang's causes are expected in 2011 at the earliest...

Large Hadron Collider: A history of hiccups
1994
The Large Hadron Collider (LHC) is approved by the Cern Council
1999
Construction of the LHC begins
2008
10 September LHC is successfully switched on for the first time
19 September Explosion forces Cern to shut down machine
2009
3 November Piece of bread, believed to have been dropped by a bird, causes a power cut
20 November After 14 months of repairs the LHC is restarted
23 November Machine smashes proton beams together for first time