There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.
Douglas Adams - The Restaurant at the End of the Universe
The Large Hadron Collider is supposed to be active as of today. I can't wait to see what happens. This video is a short explanation of what it is supposed to do.
Amazing photos here.