(...and you thought 10 dimensions was a lot?) ;)
Physicists working to unify the mutually contradictory theories of quantum mechanics and gravity could have a new tool at their disposal, thanks to a group of mathematicians who met at the American Institute of Mathematics.
The researchers have mapped a thing called the E8 Lie Group (pronounced Lee, after mathematician Sophus Marius Lie).
More: http://www.theregister.co.uk/2007/03/20/e8_liegroup/