Suppose that you need to see what is inside a small room that is difficult to access. Thick walls between you and the object of your investigation; you cannot dig, and the closest that you can get to the target is inside a narrow tunnel, with no electricity to power your instrumentation. What would you do? Fundamental physics may come to the rescue. Read more at: http://cms.cern/news/cms-technology-used-develop-new-portable-muon-telescope