The big bang theory is alive and well but the nonsense about their needing to be an explosive? Well that just takes me back to the Ab Fab quote I just posted: "why not have a stupidity tax, just tax the stupid people!"
The Big Bang theory, modified 20 or do years ago to "The Big Bang with Inflation" is alive, well, and supported by every shred of physical evidence available to science.
Here's a link from the University of California at Berkeley that should help:
http://cosmology.berkeley.edu/Education/IUP/Big_Bang_Primer.html and some others too:
http://archive.ncsa.uiuc.edu/Cyberia/Cosmos/InTheBeginning.html http://www.ncsu.edu/felder-public/kenny/papers/inflation.html http://imagine.gsfc.nasa.gov/docs/ask_astro/answers/031030b.html http://en.wikipedia.org/wiki/Big_Bang http://csep10.phys.utk.edu/astr162/lect/cosmology/inflation.html Note that they are all reputable sources.
