Nuclear engineering students Dan Estel, Craig Heimericks, and Jeremy Gorelick last spring became the first undergraduate students in a new training program to become certified as nuclear reactor operators. In March, the trio passed a three-part written examination given by the U.S. Nuclear Regulatory Commission, which regulates civilian use of nuclear materials. The newly licensed operators can now power up the Missouri S&T Nuclear Reactor for tours - about 3,000 people tour the facility annually - as well as irradiate samples for research, perform routine checks of the reactor and train others to become certified reactor operators.