I've always loved how Google illustrates their logo according to what's happening in the world. Today's is especially great!

The Large Hadron Collider Google logo by Google. :)

A bit of background

The Large Hadron Collider, the greatest atom smasher ever created, the world's biggest machine, was switched on today at CERN, the European nuclear research centre outside Geneva. And the result: rather less than earth shattering. Read more here...