Big Bang theory is not valid.

[Autumnlicious]

I found a quick (read one post) explanation of Dark Matter and Dark Energy on reddit from a cosmology PhD: http://www.reddit.com/r/Physics/comments...e_current/

So, while the dark matter name sounds mysterious and is often termed a place holder for stuff we don't know about, we do in fact, know an awful lot about the properties of dark matter and have finitely many models and theories waiting to be confirmed or disproven from the LHC and DM direct detection experiments.

Also, Diamond, what have your esteemed colleagues to say about The Bullet Cluster? REF: http://en.wikipedia.org/wiki/Bullet_Cluster