After more than a year of repairs, the Large Hadron Collider located at the CERN laboratory near Geneva, Switzerland is back on track to create high-energy particle collisions that may yield extraordinary insights into the nature of the physical universe.

There’s nothing fictional about antimatter. It’s all around us, all the time. Researchers know how to create and store antiparticles, and members of Berkeley Lab’s Accelerator and Fusion Research Division have even helped make antihydrogen atoms at CERN. But gathering enough to fuel a rocket or make a bomb would take so much energy that no one (including the Vatican) needs to worry.