.. for the world may end before Wednesday morning (our time). Or maybe not.

While it's too late to register for the Fermilab pajama party celebrating the opening of the large halon collider, you can still view the rap song some scientists made describing it.

Even better, if the world doesn't end when they turn it on, yo you can hear Harvard physicist John Huth explain why it didn't end on Wednesday afternoon. In starting up the LHC, scientists "will search for the tracks of particles whose existence would transform the human understanding of the universe we live in."