Last weekend we took the train to Geneva for the CERN Large Hadron Collider open day, the last open day before it 'turns on' in Summer this year.
Higgs boson particle, which is the theorised particle physicists hope will form the last piece of the standard model.
ATLAS detector, which is just one of many experiments taking place around the ring. Its difficult to fully grasp the scale of this experiment, as you can only ever see a tiny part of it at once (the cool looking building is actually an exhibition hall, ATLAS being housed in a more warehouse looking building).
We bought ourselves a few bits and bobs to remind ourselves of our trip, and will be able to look back on it in 10 years time when they finally announce whether they have actually found anything in their experiments. I believe they are already planning an even bigger accelerator!