This week, we’re looking at one of the biggest science stories of 2012, and one of the largest instruments in the history of science. Guest host Marie-Claire Shanahan spends the hour with theoretical physicist Sean Carroll, author of the new book The Particle at The End of The Universe: How the Hunt for the Higgs Boson Leads Us to the Edge of a New World. They’ll discuss the search for the particle that gives all the others their mass, the story of the Large Hadron Collider, and the challenge of communicating with a broad audience about difficult topics in cutting-edge physics.