Two high-energy physics faculty members have made headlines with infinitesimal particles. Distinguished Professor Sheldon Stone has confirmed that matter and antimatter behave differently, possibly explaining why the Big Bang produced matter, not just a burst of energy. Professor Tomasz Skwarnicki has discovered properties of particles called pentaquarks that could help us understand structures such as ultra-dense stars. Both sets of findings involve the CERN laboratory in Geneva, Switzerland, and are supported by the National Science Foundation.